Home |
Search |
Today's Posts |
|
Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#41
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"Larry Jaques" wrote in message
... On Fri, 3 Nov 2017 12:40:20 -0400, "Jim Wilkins" wrote: If it's only affected after a power outage, could the start cap on the motor be leaking down? No, Larry, during an outage I have only the 30A or so max from the genny to start the motor and that isn't enough to start it under load. When the power is on this house can pull 200A from the grid all day, the neighborhood was originally wired for electric heat. The washing machine also won't start on 30A unless I push the spring-tensioned motor inward to let the belt slip. -jsw |
#42
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Sat, 4 Nov 2017 19:00:46 -0400, "Jim Wilkins"
wrote: "Larry Jaques" wrote in message .. . On Fri, 3 Nov 2017 12:40:20 -0400, "Jim Wilkins" wrote: If it's only affected after a power outage, could the start cap on the motor be leaking down? No, Larry, during an outage I have only the 30A or so max from the genny to start the motor and that isn't enough to start it under load. The way you said it was...curious. "long outage" When the power is on this house can pull 200A from the grid all day, the neighborhood was originally wired for electric heat. Mine was wired that way, too, and I absolutely hated the baseboard crap. The first thing I did was spend $9,000 to toss the 240v radiant heat, put in a 96% efficient gas heater with A/C, pull out the single glazed aluminum windows and put in dual-glazed PVC windows, and get all-new, -efficient- kitchen and washroom appliances. That gave me 2 new dual circuits for 3 new 240v outlets in the shop (seldom used concurrently), one dual circuit for the new A/C condenser, a circuit for the furnace, and 3 spare slots. The washing machine also won't start on 30A unless I push the spring-tensioned motor inward to let the belt slip. Cheater! Get a new washer. I hear they're only 1/4hp now, and won't blow a 15a breaker. -- One of the reasons (progressive) college students get so upset about everything is the poor quelity of teaching they receive. Well-educated people are generally unshockable. They have no intellectual hinterland and no curiosity about the world around them or about anything that has preceded their own lives. Centuries of history, culture, and wisdom are dismissed as products of "dead white men." --MILO. Dangerous |
#43
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On 11/4/2017 3:11 PM, Bob La Londe wrote:
If you don't mind some shipping costs I can help you out with some basic stuff.Â* I'm not a "real" machinist, but I am perfectly competent at turning stock into a pile of unrecoverable chips. COOL! I'll let you know when I'm there. I'll need an adapter for the motor shaft to a timing belt pulley and a 5/8" x 4"shaft. |
#44
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"Larry Jaques" wrote in message
... On Sat, 4 Nov 2017 19:00:46 -0400, "Jim Wilkins" wrote: "Larry Jaques" wrote in message . .. On Fri, 3 Nov 2017 12:40:20 -0400, "Jim Wilkins" wrote: If it's only affected after a power outage, could the start cap on the motor be leaking down? No, Larry, during an outage I have only the 30A or so max from the genny to start the motor and that isn't enough to start it under load. The way you said it was...curious. "long outage" This is what that curious-to-you phrase means: http://www.nh1.com/news/new-hampshir...-in-nh-history The storm hit on Sunday night and the crews are only now completing the final restorations. I ran the fridge on the UPS overnight, then since we hadn't lost power I checked the run time on the 6 year old batteries, which was still adequate. The solar panels I have now aren't enough to keep up with daily demand so I took advantage of Home Depot's sale on "100W" panels for $99 with free home delivery. They are Grape Solar polycrystallines which get good enough reviews that lack technical details. I have the equipment to measure and record their output and will give them a good checkout, and perhaps buy an MPPT controller if it makes economic sense. Right now MPPTs cost about as much as another 100W panel without adding as much output from a small system. My DPS5015 switching regulator can be used to find and charge at the maximum power point but it won't track changes automatically. When the power is on this house can pull 200A from the grid all day, the neighborhood was originally wired for electric heat. Mine was wired that way, too, and I absolutely hated the baseboard crap. The first thing I did was spend $9,000 to toss the 240v radiant heat, put in a 96% efficient gas heater with A/C, pull out the single glazed aluminum windows and put in dual-glazed PVC windows, and get all-new, -efficient- kitchen and washroom appliances. That gave me 2 new dual circuits for 3 new 240v outlets in the shop (seldom used concurrently), one dual circuit for the new A/C condenser, a circuit for the furnace, and 3 spare slots. I left the electric heat intact as an automatic backup for the wood heat, with new thermostats that can be set below 50F. Heat in the bathroom is very nice when I've let the house cool below 55F. The washing machine also won't start on 30A unless I push the spring-tensioned motor inward to let the belt slip. Cheater! Get a new washer. I hear they're only 1/4hp now, and won't blow a 15a breaker. My old Dependable Care Maytags are easily modified to wash with water heated on the wood stove and poured in. I bypassed the water level control which allows these top loaders to wash with as little water as a front loader. Water isn't short here but heating it is expensive. The one I'm using now simply has an added Wash/Spin switch that reverses the start winding. All I had to do to change the wiring was rearrange the Fastons. -jsw |
#45
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Sun, 5 Nov 2017 08:09:56 -0500, "Jim Wilkins"
wrote: "Larry Jaques" wrote in message .. . On Sat, 4 Nov 2017 19:00:46 -0400, "Jim Wilkins" wrote: "Larry Jaques" wrote in message ... On Fri, 3 Nov 2017 12:40:20 -0400, "Jim Wilkins" wrote: If it's only affected after a power outage, could the start cap on the motor be leaking down? No, Larry, during an outage I have only the 30A or so max from the genny to start the motor and that isn't enough to start it under load. The way you said it was...curious. "long outage" This is what that curious-to-you phrase means: http://www.nh1.com/news/new-hampshir...-in-nh-history The storm hit on Sunday night and the crews are only now completing the final restorations. It's that Globular Swarming, uh, I meant Crimate Change, uh, I mean Tipping Point again. Leftist scientists say it'll be happening every 5 years from now on. I ran the fridge on the UPS overnight, then since we hadn't lost power I checked the run time on the 6 year old batteries, which was still adequate. The solar panels I have now aren't enough to keep up with daily demand so I took advantage of Home Depot's sale on "100W" panels for $99 with free home delivery. Not a bad price. They are Grape Solar polycrystallines which get good enough reviews that lack technical details. I have the equipment to measure and record their output and will give them a good checkout, and perhaps buy an MPPT controller if it makes economic sense. Right now MPPTs cost about as much as another 100W panel without adding as much output A PWM controller was included with the $1119 kit I got. 1080w of poly solar (6x 180w panels @ $170 ea.) I found a backup "MPPT" controller for $26, ($99 now http://tinyurl.com/yajajczf ) so I'll be testing the two against each other to see if the pseudo-MPPT gives any better output. These Taiwanese jobs were the next step up at $300. http://tinyurl.com/ybvt6mme An Outback Flexmax 80 would be a nice one to grow into (with datalogger) but they cost $509. They're good for 150v solar arrays, so I could triple-up panels in series/parallel for less loss. Some day. from a small system. My DPS5015 switching regulator can be used to find and charge at the maximum power point but it won't track changes automatically. Interesting, but sort of a moot point without automation. Or is it? Finding the MPP of the system might be good for a boost, even without the tracking, but I haven't seen any studies on that. I'll look for some more articles on MPP to see. When the power is on this house can pull 200A from the grid all day, the neighborhood was originally wired for electric heat. Mine was wired that way, too, and I absolutely hated the baseboard crap. The first thing I did was spend $9,000 to toss the 240v radiant heat, put in a 96% efficient gas heater with A/C, pull out the single glazed aluminum windows and put in dual-glazed PVC windows, and get all-new, -efficient- kitchen and washroom appliances. That gave me 2 new dual circuits for 3 new 240v outlets in the shop (seldom used concurrently), one dual circuit for the new A/C condenser, a circuit for the furnace, and 3 spare slots. I left the electric heat intact as an automatic backup for the wood heat, with new thermostats that can be set below 50F. Heat in the bathroom is very nice when I've let the house cool below 55F. Grok that. I disabled my shiny chrome heater, but put a $20 milkhouse heater in there to warm things up before showers. Heavenly. The washing machine also won't start on 30A unless I push the spring-tensioned motor inward to let the belt slip. Cheater! Get a new washer. I hear they're only 1/4hp now, and won't blow a 15a breaker. My old Dependable Care Maytags are easily modified to wash with water heated on the wood stove and poured in. I bypassed the water level control which allows these top loaders to wash with as little water as a front loader. Water isn't short here but heating it is expensive. Yeah, the older Kenmore and Maytags were bulletproof. My Magic Chef (? yeah, me, too) is a cheaped-out Maytag with plastic bucket. They had to replace the washer motor within 6 weeks. And the dryer thumped for the first 5 minutes due to soft rollers. I had them replace 'em although the tech said it wouldn't matter. Once he showed me the soft rubber rollers he removed, I understood. The type of rubber makes for thumps for the first few minutes, but a quieter dryer for the next 45. I switched to a warm wash/cold rinse, which showed on my electric bill years ago to be the best way. With solar hot water and LED lighting, I may have $20/mo electric bills. The furnace has a variable speed DC fan motor for more savings. Carrier Infinity = no wood smoke = Love it. The one I'm using now simply has an added Wash/Spin switch that reverses the start winding. All I had to do to change the wiring was rearrange the Fastons. One of my water heater elements will be solar soon, so that should effectively drop my electric bill by half. We'll see what 900w will do in a 20gal tank. I'll run solar all day. The other element is 3800w and I installed a timer (limited to 3hr/day) to bump it to 120F in the evening when necessary. Now to find sensors to collect data on it... -- One of the reasons (progressive) college students get so upset about everything is the poor quelity of teaching they receive. Well-educated people are generally unshockable. They have no intellectual hinterland and no curiosity about the world around them or about anything that has preceded their own lives. Centuries of history, culture, and wisdom are dismissed as products of "dead white men." --MILO. Dangerous |
#46
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"Tom Gardner" wrote in message news On 11/4/2017 3:11 PM, Bob La Londe wrote: If you don't mind some shipping costs I can help you out with some basic stuff. I'm not a "real" machinist, but I am perfectly competent at turning stock into a pile of unrecoverable chips. COOL! I'll let you know when I'm there. I'll need an adapter for the motor shaft to a timing belt pulley and a 5/8" x 4"shaft. *** Doesn't sound to hard. I'm sure I can destroy those parts easily. Use the contact form at cncmolds.com to start a private mail conversation when you are ready. |
#47
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Sun, 05 Nov 2017 07:37:28 -0800, Larry Jaques
wrote: On Sun, 5 Nov 2017 08:09:56 -0500, "Jim Wilkins" wrote: from a small system. My DPS5015 switching regulator can be used to find and charge at the maximum power point but it won't track changes automatically. Interesting, but sort of a moot point without automation. Or is it? Finding the MPP of the system might be good for a boost, even without the tracking, but I haven't seen any studies on that. I'll look for some more articles on MPP to see. Nope. Conditions vary so much that a single snapshot of an MPP in time wouldn't be of much use. It appears that the MPPT controller changes the resistance of the circuit so it continues to output max power at all times, from 1 to 1000 times per second. (one of 84 million 400 thousand snapshots a day. https://www.teachengineering.org/les...pveff_lesson03 (I know, k12 site, but it had the info I sought.) -- One of the reasons (progressive) college students get so upset about everything is the poor quelity of teaching they receive. Well-educated people are generally unshockable. They have no intellectual hinterland and no curiosity about the world around them or about anything that has preceded their own lives. Centuries of history, culture, and wisdom are dismissed as products of "dead white men." --MILO. Dangerous |
#48
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"Larry Jaques" wrote in message
... On Sun, 5 Nov 2017 08:09:56 -0500, "Jim Wilkins" wrote: "Larry Jaques" wrote in message . .. On Sat, 4 Nov 2017 19:00:46 -0400, "Jim Wilkins" wrote: "Larry Jaques" wrote in message m... On Fri, 3 Nov 2017 12:40:20 -0400, "Jim Wilkins" wrote: If it's only affected after a power outage, could the start cap on the motor be leaking down? No, Larry, during an outage I have only the 30A or so max from the genny to start the motor and that isn't enough to start it under load. The way you said it was...curious. "long outage" This is what that curious-to-you phrase means: http://www.nh1.com/news/new-hampshir...-in-nh-history The storm hit on Sunday night and the crews are only now completing the final restorations. It's that Globular Swarming, uh, I meant Crimate Change, uh, I mean Tipping Point again. Leftist scientists say it'll be happening every 5 years from now on. We were wrong to doubt Chicken Little. I ran the fridge on the UPS overnight, then since we hadn't lost power I checked the run time on the 6 year old batteries, which was still adequate. The solar panels I have now aren't enough to keep up with daily demand so I took advantage of Home Depot's sale on "100W" panels for $99 with free home delivery. Not a bad price. They are Grape Solar polycrystallines which get good enough reviews that lack technical details. I have the equipment to measure and record their output and will give them a good checkout, and perhaps buy an MPPT controller if it makes economic sense. Right now MPPTs cost about as much as another 100W panel without adding as much output A PWM controller was included with the $1119 kit I got. 1080w of poly solar (6x 180w panels @ $170 ea.) I found a backup "MPPT" controller for $26, ($99 now http://tinyurl.com/yajajczf ) so I'll be testing the two against each other to see if the pseudo-MPPT gives any better output. These Taiwanese jobs were the next step up at $300. http://tinyurl.com/ybvt6mme An Outback Flexmax 80 would be a nice one to grow into (with datalogger) but they cost $509. They're good for 150v solar arrays, so I could triple-up panels in series/parallel for less loss. Some day. There's this, if you want to look cool and easy to operate: https://www.amazon.com/dp/B0739P1K9Y...a-351132182348 from a small system. My DPS5015 switching regulator can be used to find and charge at the maximum power point but it won't track changes automatically. Interesting, but sort of a moot point without automation. Or is it? Finding the MPP of the system might be good for a boost, even without the tracking, but I haven't seen any studies on that. I'll look for some more articles on MPP to see. If the sky is clear the panel output doesn't change much in an hour. We are downwind of Vermont's mountains and if it is at all cloudy the solar output may vary so much that I'd be better off recharging from a generator. One of my water heater elements will be solar soon, so that should effectively drop my electric bill by half. We'll see what 900w will do in a 20gal tank. I'll run solar all day. The other element is 3800w and I installed a timer (limited to 3hr/day) to bump it to 120F in the evening when necessary. Now to find sensors to collect data on it... My well-insulated 40 gallon electric water heater draws ~1 KWH per day, 28 KWH on the bill for September. -jsw |
#49
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"Larry Jaques" wrote in message
... On Sun, 05 Nov 2017 07:37:28 -0800, Larry Jaques wrote: On Sun, 5 Nov 2017 08:09:56 -0500, "Jim Wilkins" wrote: from a small system. My DPS5015 switching regulator can be used to find and charge at the maximum power point but it won't track changes automatically. Interesting, but sort of a moot point without automation. Or is it? Finding the MPP of the system might be good for a boost, even without the tracking, but I haven't seen any studies on that. I'll look for some more articles on MPP to see. Nope. Conditions vary so much that a single snapshot of an MPP in time wouldn't be of much use. It appears that the MPPT controller changes the resistance of the circuit so it continues to output max power at all times, from 1 to 1000 times per second. (one of 84 million 400 thousand snapshots a day. https://www.teachengineering.org/les...pveff_lesson03 (I know, k12 site, but it had the info I sought.) I made that measurement on my HF 45W panels with a large rheostat and a DC Volt/Amp/Watt meter and found a range of several volts where the efficiency was at least 95% of the peak. Batteries charge with Amps, not Watts. Any charging voltage above the 12.6V that the battery gives back is only a lost entry fee. The graph shows that the current continues to increase as the load (battery) pulls the panel voltage further below the Maximum Power Point. The DPS5015 displays output Volts, Amps and Watts and with another wattmeter like the blue Aode in the input, the output can be adjusted for the maximum charging current reading, then you can compare Watts in and out to see efficiency. -jsw |
#50
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"Larry Jaques" wrote in message
... On Sun, 05 Nov 2017 07:37:28 -0800, Larry Jaques wrote: On Sun, 5 Nov 2017 08:09:56 -0500, "Jim Wilkins" wrote: from a small system. My DPS5015 switching regulator can be used to find and charge at the maximum power point but it won't track changes automatically. Interesting, but sort of a moot point without automation. Or is it? Finding the MPP of the system might be good for a boost, even without the tracking, but I haven't seen any studies on that. I'll look for some more articles on MPP to see. Nope. Conditions vary so much that a single snapshot of an MPP in time wouldn't be of much use. It appears that the MPPT controller changes the resistance of the circuit so it continues to output max power at all times, from 1 to 1000 times per second. (one of 84 million 400 thousand snapshots a day. https://www.teachengineering.org/les...pveff_lesson03 (I know, k12 site, but it had the info I sought.) http://lib.tkk.fi/Dipl/2010/urn100399.pdf Finding the MPP with the DPS5015 shows me how much more current an MPPT controller would give, compared to a direct connection from the panel to the battery as with a PWM controller. I've read that an MPPT controller isn't cost-effective for arrays of 200W or less, or for trickle charging batteries whose voltage is already close to the MPP. -jsw |
#51
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Sun, 5 Nov 2017 14:48:54 -0500, "Jim Wilkins"
wrote: "Larry Jaques" wrote in message .. . On Sun, 5 Nov 2017 08:09:56 -0500, "Jim Wilkins" wrote: "Larry Jaques" wrote in message ... On Sat, 4 Nov 2017 19:00:46 -0400, "Jim Wilkins" wrote: "Larry Jaques" wrote in message om... On Fri, 3 Nov 2017 12:40:20 -0400, "Jim Wilkins" wrote: If it's only affected after a power outage, could the start cap on the motor be leaking down? No, Larry, during an outage I have only the 30A or so max from the genny to start the motor and that isn't enough to start it under load. The way you said it was...curious. "long outage" This is what that curious-to-you phrase means: http://www.nh1.com/news/new-hampshir...-in-nh-history The storm hit on Sunday night and the crews are only now completing the final restorations. It's that Globular Swarming, uh, I meant Crimate Change, uh, I mean Tipping Point again. Leftist scientists say it'll be happening every 5 years from now on. We were wrong to doubt Chicken Little. Ohmigodwe'reallgonnadie. g I ran the fridge on the UPS overnight, then since we hadn't lost power I checked the run time on the 6 year old batteries, which was still adequate. The solar panels I have now aren't enough to keep up with daily demand so I took advantage of Home Depot's sale on "100W" panels for $99 with free home delivery. Not a bad price. They are Grape Solar polycrystallines which get good enough reviews that lack technical details. I have the equipment to measure and record their output and will give them a good checkout, and perhaps buy an MPPT controller if it makes economic sense. Right now MPPTs cost about as much as another 100W panel without adding as much output A PWM controller was included with the $1119 kit I got. 1080w of poly solar (6x 180w panels @ $170 ea.) I found a backup "MPPT" controller for $26, ($99 now http://tinyurl.com/yajajczf ) so I'll be testing the two against each other to see if the pseudo-MPPT gives any better output. These Taiwanese jobs were the next step up at $300. http://tinyurl.com/ybvt6mme An Outback Flexmax 80 would be a nice one to grow into (with datalogger) but they cost $509. They're good for 150v solar arrays, so I could triple-up panels in series/parallel for less loss. Some day. There's this, if you want to look cool and easy to operate: https://www.amazon.com/dp/B0739P1K9Y...a-351132182348 I would all but guarantee that it's not an actual MPPT controller. (Oh, it says "Not True MPPT". How about that!) MANY of the cheap Chiwanese units aren't. I'll find out whether or not my cheapie is real once it's installed. It's likely also "MPPT compatible". from a small system. My DPS5015 switching regulator can be used to find and charge at the maximum power point but it won't track changes automatically. Interesting, but sort of a moot point without automation. Or is it? Finding the MPP of the system might be good for a boost, even without the tracking, but I haven't seen any studies on that. I'll look for some more articles on MPP to see. If the sky is clear the panel output doesn't change much in an hour. We are downwind of Vermont's mountains and if it is at all cloudy the solar output may vary so much that I'd be better off recharging from a generator. It all depends on what you're doing with the power. I'll be spending it as quickly as it's produced until summer comes. Then it goes to feed the batteries, of which I'll have too few. If you have the controller for it, you can have excess volts converted to amps for storage in the batteries at various levels. I'll run a 24vdc bank (of two), with up to 43v in...if the controller decides to work well. One of my water heater elements will be solar soon, so that should effectively drop my electric bill by half. We'll see what 900w will do in a 20gal tank. I'll run solar all day. The other element is 3800w and I installed a timer (limited to 3hr/day) to bump it to 120F in the evening when necessary. Now to find sensors to collect data on it... My well-insulated 40 gallon electric water heater draws ~1 KWH per day, 28 KWH on the bill for September. Why aren't you using it? (Oh, woodstove heating water, right. Isn't that hot in the summer?) I ran 558kwh in the hideous August heat, and only 202 last month. The overly-long/hot July bumped my Comfort Level payments from $38 to $43/mo. Half is for admin and half is the charge for electrons. sigh -- In reality, serendipity accounts for one percent of the blessings we receive in life, work and love. The other 99 percent is due to our efforts. -- Peter McWilliams |
#52
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"Larry Jaques" wrote in message
... On Sun, 5 Nov 2017 14:48:54 -0500, "Jim Wilkins" wrote: My well-insulated 40 gallon electric water heater draws ~1 KWH per day, 28 KWH on the bill for September. Why aren't you using it? (Oh, woodstove heating water, right. Isn't that hot in the summer?) I -am- using the electric water heater. My sink spray shower is very efficient. -jsw |
#53
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Sun, 5 Nov 2017 18:52:52 -0500, "Jim Wilkins"
wrote: "Larry Jaques" wrote in message .. . On Sun, 05 Nov 2017 07:37:28 -0800, Larry Jaques wrote: On Sun, 5 Nov 2017 08:09:56 -0500, "Jim Wilkins" wrote: from a small system. My DPS5015 switching regulator can be used to find and charge at the maximum power point but it won't track changes automatically. Interesting, but sort of a moot point without automation. Or is it? Finding the MPP of the system might be good for a boost, even without the tracking, but I haven't seen any studies on that. I'll look for some more articles on MPP to see. Nope. Conditions vary so much that a single snapshot of an MPP in time wouldn't be of much use. It appears that the MPPT controller changes the resistance of the circuit so it continues to output max power at all times, from 1 to 1000 times per second. (one of 84 million 400 thousand snapshots a day. https://www.teachengineering.org/les...pveff_lesson03 (I know, k12 site, but it had the info I sought.) http://lib.tkk.fi/Dipl/2010/urn100399.pdf Schools can buy solar simulators now, with which they can do this type of experimenting. Guessing that FLC won before reading the article, which looks like one I'll enjoy. Thanks. Finding the MPP with the DPS5015 shows me how much more current an MPPT controller would give, compared to a direct connection from the panel to the battery as with a PWM controller. I've read that an MPPT controller isn't cost-effective for arrays of 200W or less, or for trickle charging batteries whose voltage is already close to the MPP. Yup, but they can give you a whole lot more usable power on larger systems. I intend to expand this 1kW system to 6kW at some time in the future, so I should probably buy that Outback before more panels. So, with the new 100w panel, are you now only up to 145w (theoretical)? -- In reality, serendipity accounts for one percent of the blessings we receive in life, work and love. The other 99 percent is due to our efforts. -- Peter McWilliams |
#54
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Sun, 5 Nov 2017 20:09:18 -0500, "Jim Wilkins"
wrote: "Larry Jaques" wrote in message .. . On Sun, 5 Nov 2017 14:48:54 -0500, "Jim Wilkins" wrote: My well-insulated 40 gallon electric water heater draws ~1 KWH per day, 28 KWH on the bill for September. Why aren't you using it? (Oh, woodstove heating water, right. Isn't that hot in the summer?) I -am- using the electric water heater. My sink spray shower is very efficient. Dayum, must be. That or your monthly shower is short. gd&r The cutoff showerheads sure save water/power. I like lots of water to do quick rinses, so shutting it off after wetting down, shampooing, then soap/scrubbing, then turning on for a quick rinse with many hard, fine streams is great. Instead of lo-flo, I go with hi-flo/short showers. A wimpy hand sprayer wouldn't suit me at all. I'm in and out in four minutes, loofah in hand. (Dad was Air Force and related the GI shower theme to me.) -- In reality, serendipity accounts for one percent of the blessings we receive in life, work and love. The other 99 percent is due to our efforts. -- Peter McWilliams |
#55
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"Larry Jaques" wrote in message
... On Sun, 5 Nov 2017 18:52:52 -0500, "Jim Wilkins" wrote: "Larry Jaques" wrote in message . .. On Sun, 05 Nov 2017 07:37:28 -0800, Larry Jaques wrote: On Sun, 5 Nov 2017 08:09:56 -0500, "Jim Wilkins" wrote: from a small system. My DPS5015 switching regulator can be used to find and charge at the maximum power point but it won't track changes automatically. Interesting, but sort of a moot point without automation. Or is it? Finding the MPP of the system might be good for a boost, even without the tracking, but I haven't seen any studies on that. I'll look for some more articles on MPP to see. Nope. Conditions vary so much that a single snapshot of an MPP in time wouldn't be of much use. It appears that the MPPT controller changes the resistance of the circuit so it continues to output max power at all times, from 1 to 1000 times per second. (one of 84 million 400 thousand snapshots a day. https://www.teachengineering.org/les...pveff_lesson03 (I know, k12 site, but it had the info I sought.) http://lib.tkk.fi/Dipl/2010/urn100399.pdf Schools can buy solar simulators now, with which they can do this type of experimenting. Guessing that FLC won before reading the article, which looks like one I'll enjoy. Thanks. Finding the MPP with the DPS5015 shows me how much more current an MPPT controller would give, compared to a direct connection from the panel to the battery as with a PWM controller. I've read that an MPPT controller isn't cost-effective for arrays of 200W or less, or for trickle charging batteries whose voltage is already close to the MPP. Yup, but they can give you a whole lot more usable power on larger systems. I intend to expand this 1kW system to 6kW at some time in the future, so I should probably buy that Outback before more panels. So, with the new 100w panel, are you now only up to 145w (theoretical)? I have around 200W now and ordered another 200W. The limitation on solar here is large shade trees that cut my air conditioning bill to $5 a month. One solar array catches an opening between the trees before noon, the other after it. I used an extra freestanding HF panel to find a convenient area for the new panels where I can get power from 8AM to 2PM though it's not a good spot for a permanent mount. After the leaves fall there's sun all day, filtered somewhat by bare branches. I already have enough solar power to keep my vehicle and backup batteries topped off but this last storm and run time test showed how dependent I am on a generator if I can't keep food cold outdoors. -jsw |
#56
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Mon, 6 Nov 2017 13:18:06 -0500, "Jim Wilkins"
wrote: "Larry Jaques" wrote in message .. . Yup, but they can give you a whole lot more usable power on larger systems. I intend to expand this 1kW system to 6kW at some time in the future, so I should probably buy that Outback before more Oops, I meant MidNite Solar Classic 150-SL @ about the same price. panels. So, with the new 100w panel, are you now only up to 145w (theoretical)? I have around 200W now and ordered another 200W. Oh, good. You're inching toward real power, good for something more than a 5" tv, am/fm radio, or LED lighting. The limitation on solar here is large shade trees that cut my air conditioning bill to $5 a month. But if you have solar, you can generate your own free electrons. Are the trees on your lot/cuttable? IMHO, shade is extremely overrated, except when you want to sit outside in the spring/fall, in which case you need precisely one tall shrub or small tree. I took down 4 large trees and I sure don't miss the trouble they caused. I no longer have trouble mowing and with only 3 trees left (1 constantly shedding Redwood and 2 deciduous at the property lines, sharing the bounty with neighbors' fields) I have a metric ****load less raking. One solar array catches an opening between the trees before noon, the other after it. I used an extra freestanding HF panel to find a convenient area for the new panels where I can get power from 8AM to 2PM though it's not a good spot for a permanent mount. Just hope you don't have a branch come down and poke through them. Impermanent placement sucks. Moving things twice daily is a PITA. What are your future plans mounting and expansion? After the leaves fall there's sun all day, filtered somewhat by bare branches. I already have enough solar power to keep my vehicle and backup batteries topped off but this last storm and run time test showed how dependent I am on a generator if I can't keep food cold outdoors. You'll get enough power on a bright day (in the shade) to top off your batteries, but even a small amount of real shade kills a full panel's voltage and current. I haven't yet experienced this, but I've seen it demonstrated often enough in vids on Djutube. Oddly, I wasn't inclined to fool around with the little HF system. I just installed it and tested it. But I put in 4 little concrete reinforcements for the base and another under the batteries, so I guess I was done for those days. All that research first must have filled the need to play, measure, and chart. -- In reality, serendipity accounts for one percent of the blessings we receive in life, work and love. The other 99 percent is due to our efforts. -- Peter McWilliams |
#57
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Mon, 06 Nov 2017 16:02:23 -0800, Larry Jaques
wrote: On Mon, 6 Nov 2017 13:18:06 -0500, "Jim Wilkins" wrote: "Larry Jaques" wrote in message . .. Yup, but they can give you a whole lot more usable power on larger systems. I intend to expand this 1kW system to 6kW at some time in the future, so I should probably buy that Outback before more Oops, I meant MidNite Solar Classic 150-SL @ about the same price. panels. So, with the new 100w panel, are you now only up to 145w (theoretical)? I have around 200W now and ordered another 200W. Oh, good. You're inching toward real power, good for something more than a 5" tv, am/fm radio, or LED lighting. The limitation on solar here is large shade trees that cut my air conditioning bill to $5 a month. But if you have solar, you can generate your own free electrons. Are the trees on your lot/cuttable? IMHO, shade is extremely overrated, except when you want to sit outside in the spring/fall, in which case you need precisely one tall shrub or small tree. I took down 4 large trees and I sure don't miss the trouble they caused. I no longer have trouble mowing and with only 3 trees left (1 constantly shedding Redwood and 2 deciduous at the property lines, sharing the bounty with neighbors' fields) I have a metric ****load less raking. One solar array catches an opening between the trees before noon, the other after it. I used an extra freestanding HF panel to find a convenient area for the new panels where I can get power from 8AM to 2PM though it's not a good spot for a permanent mount. Just hope you don't have a branch come down and poke through them. Impermanent placement sucks. Moving things twice daily is a PITA. What are your future plans mounting and expansion? After the leaves fall there's sun all day, filtered somewhat by bare branches. I already have enough solar power to keep my vehicle and backup batteries topped off but this last storm and run time test showed how dependent I am on a generator if I can't keep food cold outdoors. You'll get enough power on a bright day (in the shade) to top off your batteries, but even a small amount of real shade kills a full panel's voltage and current. That is true of some panels One of the technologies is worse than the other - ac't remember the terminology - and good panels have schotky bypass diodes that will allow the panel to produce reduced voltage instead of going totally off-line when a portion is shaded. I haven't yet experienced this, but I've seen it demonstrated often enough in vids on Djutube. Oddly, I wasn't inclined to fool around with the little HF system. I just installed it and tested it. But I put in 4 little concrete reinforcements for the base and another under the batteries, so I guess I was done for those days. All that research first must have filled the need to play, measure, and chart. |
#58
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"Larry Jaques" wrote in message
... On Mon, 6 Nov 2017 13:18:06 -0500, "Jim Wilkins" wrote: ... One solar array catches an opening between the trees before noon, the other after it. I used an extra freestanding HF panel to find a convenient area for the new panels where I can get power from 8AM to 2PM though it's not a good spot for a permanent mount. Just hope you don't have a branch come down and poke through them. Impermanent placement sucks. Moving things twice daily is a PITA. What are your future plans mounting and expansion? It's still a backup for outages, until I set up outdoor battery storage and can let them charge more quickly to the equalization and gassing voltage. Limiting the battery voltage to non-gassing 13.6V as the APC1400 SmartUPS does extends the recharge time past one day. I think I can get away with a partial recharge for a week or so by using a generator and my 24V 20A welding transformer charger to make up solar shortages. Speaking of falling branches, last Sunday's storm brought down two full grown oaks and the top of a third among my sheds out back without doing more than dent the edges of the corrugated roofs as the trees landed right beside and between them. -jsw |
#59
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Mon, 6 Nov 2017 22:23:11 -0500, "Jim Wilkins"
wrote: "Larry Jaques" wrote in message .. . On Mon, 6 Nov 2017 13:18:06 -0500, "Jim Wilkins" wrote: ... One solar array catches an opening between the trees before noon, the other after it. I used an extra freestanding HF panel to find a convenient area for the new panels where I can get power from 8AM to 2PM though it's not a good spot for a permanent mount. Just hope you don't have a branch come down and poke through them. Impermanent placement sucks. Moving things twice daily is a PITA. What are your future plans mounting and expansion? It's still a backup for outages, until I set up outdoor battery storage and can let them charge more quickly to the equalization and gassing voltage. Limiting the battery voltage to non-gassing 13.6V as the APC1400 SmartUPS does extends the recharge time past one day. I think I can get away with a partial recharge for a week or so by using a generator and my 24V 20A welding transformer charger to make up solar shortages. Yes, charging outdoors does allow your hydrogen producers to avoid the lebenty seben different sparky things inside the home. I'll surround my batteries with batts of fiberglass, vent the box with a screened 2" hole top and bottom, and allow charging and discharging to keep them from freezing. It's easier here than there, as we have a nicer (non-Global Warming, kumbaya) climate. I'll be running in (mostly) DC mode until I put up a second+ kW, expand my battery bank, and get a real inverter. The 2kW HF inverter is 120v only and is semi-sine. :-/ I'll call Carrier today and ask if the Infinity will run on it. Speaking of falling branches, last Sunday's storm brought down two full grown oaks and the top of a third among my sheds out back without doing more than dent the edges of the corrugated roofs as the trees landed right beside and between them. Congrats, you got lucky and dodged yet another bullet, and now have enough additional firewood for 3-6 more years. After you put in the week to process it and a year to age. -- In reality, serendipity accounts for one percent of the blessings we receive in life, work and love. The other 99 percent is due to our efforts. -- Peter McWilliams |
#60
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"Jim Wilkins" wrote in message
news "Larry Jaques" wrote in message ... On Mon, 6 Nov 2017 13:18:06 -0500, "Jim Wilkins" wrote: ... What are your future plans mounting and expansion? It's still a backup for outages, ... The problem I see with solar power is the lifespan cost of the batteries. If I pay $100 for a battery that stores 1 KWH, i.e. 83A-h at 12V, and it lasts 500 cycles at full discharge or 1000 at 50% DOD the operating cost is $0.20 per KWH of "free" electricity, more than grid power even here where it's up at $0.19. OTOH if I buy that battery for emergency backup I want it to last as long as possible and so won't cycle it very often or very far, except to confirm that it's still able to run the fridge overnight. The compromise I want to try is to have enough solar power to fix lunch, watch the TV news and browse the net at noon without drawing much from the batteries. I've been experimenting with a 300W rice cooker as a general-purpose heating appliance. The outside doesn't warm up and waste heat. It does get hot enough to boil over so I may loan it a thermocouple and temperature controller. -jsw |
#61
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"Larry Jaques" wrote in message
... On Mon, 6 Nov 2017 22:23:11 -0500, "Jim Wilkins" wrote: ... Yes, charging outdoors does allow your hydrogen producers to avoid the lebenty seben different sparky things inside the home. One of my tasks as battery test tech at [not Segway] was sparking freshly charged lead acid batteries to see if the engineer's venting schemes worked (NOT!). A hydrogen meter found it everywhere including the lowest point in the building. The gave me a circuit board antistatic bin to contain the blast. The engineer thought it was a dishpan. -jsw |
#62
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Tuesday, November 7, 2017 at 10:43:15 AM UTC-5, Jim Wilkins wrote:
"Larry Jaques" wrote in message ... On Mon, 6 Nov 2017 22:23:11 -0500, "Jim Wilkins" wrote: ... Yes, charging outdoors does allow your hydrogen producers to avoid the lebenty seben different sparky things inside the home. One of my tasks as battery test tech at [not Segway] was sparking freshly charged lead acid batteries to see if the engineer's venting schemes worked (NOT!). A hydrogen meter found it everywhere including the lowest point in the building. The gave me a circuit board antistatic bin to contain the blast. The engineer thought it was a dishpan. -jsw LOWEST point? That was either a heluva lot of hydrogen, or one crappy ventilation system. |
#63
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Tue, 7 Nov 2017 10:43:24 -0500, "Jim Wilkins"
wrote: "Larry Jaques" wrote in message .. . On Mon, 6 Nov 2017 22:23:11 -0500, "Jim Wilkins" wrote: ... Yes, charging outdoors does allow your hydrogen producers to avoid the lebenty seben different sparky things inside the home. One of my tasks as battery test tech at [not Segway] was sparking freshly charged lead acid batteries to see if the engineer's venting schemes worked (NOT!). Sure! What's the worst that could happen? A hydrogen meter found it everywhere including the lowest point in the building. Lowest point, with hydrogen's buoyancy? Interesting. Was it a small amount which had been fluffed around by fast-moving air, or what? The gave me a circuit board antistatic bin to contain the blast. The engineer thought it was a dishpan. I hope they also gave you a rubber apron, shoulder length nitrile gloves, face mask, and goggles. -- In reality, serendipity accounts for one percent of the blessings we receive in life, work and love. The other 99 percent is due to our efforts. -- Peter McWilliams |
#64
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Tue, 7 Nov 2017 10:18:53 -0500, "Jim Wilkins"
wrote: "Jim Wilkins" wrote in message news "Larry Jaques" wrote in message ... On Mon, 6 Nov 2017 13:18:06 -0500, "Jim Wilkins" wrote: ... What are your future plans mounting and expansion? It's still a backup for outages, ... The problem I see with solar power is the lifespan cost of the batteries. If I pay $100 for a battery that stores 1 KWH, i.e. 83A-h at 12V, and it lasts 500 cycles at full discharge or 1000 at 50% DOD the operating cost is $0.20 per KWH of "free" electricity, more than grid power even here where it's up at $0.19. No, solar ain't cheap, but it buys self-sufficiency, and a normal-as- possible life during power outages. Good PV batteries can last a decade. Trojan and Rolls-Surette seem to be two very good brands with long histories and experience. I'm looking at Trojan 6-volters: T105-RE ($532/4 Amazon) and L16RE-B ($1352 for 4 @ Amazon via a vendor who has outlets in each state/free "local" pickup. I think mine is Medford, 30 miles down I-5.) A Vegas vendor wanted $1572 + $1600 to ship last year, so run away from Batteries In A Flash. Anyway, they're 225 and 370Ah each, respectively. OTOH if I buy that battery for emergency backup I want it to last as long as possible and so won't cycle it very often or very far, except to confirm that it's still able to run the fridge overnight. _A_ battery? Banks are needed for power, and to finance the batteries. :-/ The compromise I want to try is to have enough solar power to fix lunch, watch the TV news and browse the net at noon without drawing Just curious: do you continue to get TV and internet when the regional power is down for days/weeks? much from the batteries. I've been experimenting with a 300W rice cooker as a general-purpose heating appliance. The outside doesn't warm up and waste heat. It does get hot enough to boil over so I may loan it a thermocouple and temperature controller. What do you mean by "general-purpose heating appliance"? Are you using/going to be using it for heating air, water, and food, or what? Air alternative: Pick up a couple of the $10 12v car heaters from HF. About 150w each, and enough to warm up a tent in a hurry, combined with our 100-120w human bodies. http://tinyurl.com/ybyq6nx4 I use my rice cooker with the steamer top ($50 304-stainless-bowl model from Miracle, http://tinyurl.com/yas3umjn ) to cook up enough rice and veggies for a week's dinners in 20 minutes. Love those things. This is my 4th cooker in 45 years. -- In reality, serendipity accounts for one percent of the blessings we receive in life, work and love. The other 99 percent is due to our efforts. -- Peter McWilliams |
#65
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Wednesday, November 8, 2017 at 12:28:33 PM UTC-5, Larry Jaques wrote:
[big snip] Just curious: do you continue to get TV and internet when the regional power is down for days/weeks? I have determined that my cable system (Spectrum, formerly Time Warner) stays up for five hours after an outage. That's a disappointingly short time. |
#66
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"Larry Jaques" wrote in message
... On Tue, 7 Nov 2017 10:18:53 -0500, "Jim Wilkins" wrote: "Jim Wilkins" wrote in message news "Larry Jaques" wrote in message ... On Mon, 6 Nov 2017 13:18:06 -0500, "Jim Wilkins" wrote: ... OTOH if I buy that battery for emergency backup I want it to last as long as possible and so won't cycle it very often or very far, except to confirm that it's still able to run the fridge overnight. _A_ battery? Banks are needed for power, and to finance the batteries. :-/ That was an example, similar to what Batteries Plus recently quoted to me. The compromise I want to try is to have enough solar power to fix lunch, watch the TV news and browse the net at noon without drawing Just curious: do you continue to get TV and internet when the regional power is down for days/weeks? So far the TV stations and the landline and cellular services have stayed up on their batteries and generators. The Northeast has to prepare for both tropical hurricanes (TS Sandy) in summer and arctic ice storms in winter. I have both 3G and 4G wireless internet. Week-long storm outages tend to occur in relatively narrow strips, like between all snow and all rain, or wind and flood damage near the coast. They aren't regional like power generation blackouts which we haven't suffered yet, though our safety margin is shrinking due to political opposition to coal, nuclear, pipelines and Canadian hydro. much from the batteries. I've been experimenting with a 300W rice cooker as a general-purpose heating appliance. The outside doesn't warm up and waste heat. It does get hot enough to boil over so I may loan it a thermocouple and temperature controller. What do you mean by "general-purpose heating appliance"? Are you using/going to be using it for heating air, water, and food, or what? Food-heating. I didn't write 'cooking' because it doesn't get hot enough to fry. Air alternative: Pick up a couple of the $10 12v car heaters from HF. About 150w each, and enough to warm up a tent in a hurry, combined with our 100-120w human bodies. http://tinyurl.com/ybyq6nx4 Wood stove, remember? |
#67
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
rangerssuck wrote:
On Wednesday, November 8, 2017 at 12:28:33 PM UTC-5, Larry Jaques wrote: [big snip] Just curious: do you continue to get TV and internet when the regional power is down for days/weeks? I have determined that my cable system (Spectrum, formerly Time Warner) stays up for five hours after an outage. That's a disappointingly short time. Do you have any idea how much power it takes to run a CATV distribution system? Those pole mounted power transformers are a 60V, 30A modified square wave from a Constant Voltage Transformer. That is 1800 VA, continuous, and typically powers about a half mile of CATV system. How much do you want to be added to your bill, to extend that three hour design? |
#68
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"Michael A Terrell" wrote in message
... rangerssuck wrote: On Wednesday, November 8, 2017 at 12:28:33 PM UTC-5, Larry Jaques wrote: [big snip] Just curious: do you continue to get TV and internet when the regional power is down for days/weeks? I have determined that my cable system (Spectrum, formerly Time Warner) stays up for five hours after an outage. That's a disappointingly short time. Do you have any idea how much power it takes to run a CATV distribution system? Those pole mounted power transformers are a 60V, 30A modified square wave from a Constant Voltage Transformer. That is 1800 VA, continuous, and typically powers about a half mile of CATV system. How much do you want to be added to your bill, to extend that three hour design? It takes that much power to deliver 0dBmV to each house? -jsw |
#69
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"rangerssuck" wrote in message
... On Wednesday, November 8, 2017 at 12:28:33 PM UTC-5, Larry Jaques wrote: [big snip] Just curious: do you continue to get TV and internet when the regional power is down for days/weeks? I have determined that my cable system (Spectrum, formerly Time Warner) stays up for five hours after an outage. That's a disappointingly short time. The neighbors tell me they lose Xfinity TV and phone during outages, but not cell service. I no longer ask utilities much about their infrastructure because it arouses suspicions. |
#70
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Wed, 8 Nov 2017 17:45:28 -0500, "Jim Wilkins"
wrote: "Larry Jaques" wrote in message .. . On Tue, 7 Nov 2017 10:18:53 -0500, "Jim Wilkins" wrote: "Jim Wilkins" wrote in message news "Larry Jaques" wrote in message ... On Mon, 6 Nov 2017 13:18:06 -0500, "Jim Wilkins" wrote: ... OTOH if I buy that battery for emergency backup I want it to last as long as possible and so won't cycle it very often or very far, except to confirm that it's still able to run the fridge overnight. _A_ battery? Banks are needed for power, and to finance the batteries. :-/ That was an example, similar to what Batteries Plus recently quoted to me. The compromise I want to try is to have enough solar power to fix lunch, watch the TV news and browse the net at noon without drawing Just curious: do you continue to get TV and internet when the regional power is down for days/weeks? So far the TV stations and the landline and cellular services have stayed up on their batteries and generators. The Northeast has to prepare for both tropical hurricanes (TS Sandy) in summer and arctic ice storms in winter. I have both 3G and 4G wireless internet. Week-long storm outages tend to occur in relatively narrow strips, like between all snow and all rain, or wind and flood damage near the coast. They aren't regional like power generation blackouts which we haven't suffered yet, though our safety margin is shrinking due to political opposition to coal, nuclear, pipelines and Canadian hydro. Aren't Leftists wonderful? No to this, no to that, no to the other, then SAVE ME from everything--after they've hosed any systems which could have. Maybe we need two governments. One large one to serve just the Leftists covered by massive taxes paid only by them, then a small one to serve the actual Americans, with few taxes paid only by us. much from the batteries. I've been experimenting with a 300W rice cooker as a general-purpose heating appliance. The outside doesn't warm up and waste heat. It does get hot enough to boil over so I may loan it a thermocouple and temperature controller. What do you mean by "general-purpose heating appliance"? Are you using/going to be using it for heating air, water, and food, or what? Food-heating. I didn't write 'cooking' because it doesn't get hot enough to fry. OK. Air alternative: Pick up a couple of the $10 12v car heaters from HF. About 150w each, and enough to warm up a tent in a hurry, combined with our 100-120w human bodies. http://tinyurl.com/ybyq6nx4 Wood stove, remember? Evidently not. sigh But if you wanted to camp out in your living room... -- America rose from abnormal origina. The nation didn't grow organ- ically or gradually from indigenous tribes--like, say, the French or the Poles--but emerged out of courageous, conscious acts of will by Pilgrims and Patriots. --Michael Medved, Right Turns |
#71
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"Larry Jaques" wrote in message
... On Wed, 8 Nov 2017 17:45:28 -0500, "Jim Wilkins" wrote: Week-long storm outages tend to occur in relatively narrow strips, like between all snow and all rain, or wind and flood damage near the coast. They aren't regional like power generation blackouts which we haven't suffered yet, though our safety margin is shrinking due to political opposition to coal, nuclear, pipelines and Canadian hydro. Aren't Leftists wonderful? No to this, no to that, no to the other, then SAVE ME from everything--after they've hosed any systems which could have. Maybe we need two governments. One large one to serve just the Leftists covered by massive taxes paid only by them, then a small one to serve the actual Americans, with few taxes paid only by us. The government they long for would ship their useless butts to the gulag. |
#72
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Thu, 9 Nov 2017 12:43:58 -0500, "Jim Wilkins"
wrote: "Larry Jaques" wrote in message .. . On Wed, 8 Nov 2017 17:45:28 -0500, "Jim Wilkins" wrote: Week-long storm outages tend to occur in relatively narrow strips, like between all snow and all rain, or wind and flood damage near the coast. They aren't regional like power generation blackouts which we haven't suffered yet, though our safety margin is shrinking due to political opposition to coal, nuclear, pipelines and Canadian hydro. Aren't Leftists wonderful? No to this, no to that, no to the other, then SAVE ME from everything--after they've hosed any systems which could have. Maybe we need two governments. One large one to serve just the Leftists covered by massive taxes paid only by them, then a small one to serve the actual Americans, with few taxes paid only by us. The government they long for would ship their useless butts to the gulag. _Forbes_ says that Maine's power problem is the grid, not generation: [Nov. 5, 2017] "Nearly half of the people living in Maine spent a significant part of last week in the dark after a storm caused widespread power outages. "Central Maine Power, a subsidiary of the Spanish utility holding company Avangrid, reported an estimated 400,000 customer accounts – more than 60% of the utility’s customer base – were without service on Monday... "...Solar companies did not cause the prolonged power outage in Maine. Neither did deregulation. CMP did. Yes, the same utility company with the slogan "Flip a switch and we're there." "Contrary to what one would suspect based on the slogan, CMP’s incompetence and lack of planning turned what should have been a short power outage into a prolonged and painful experience. The mega-scale utility projects proposed by CMP and supported by LePage’s administration would not have made an iota of difference. "The CMP Maine Power Reliability Program (MPRP) certainly did not keep the lights on in Maine despite the program’s $1.4 billion price tag." https://www.forbes.com/sites/william.../#104f6b79fc96 What do you think? Are they right? -- Ed Huntress |
#73
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Nov 9, 2017, Ed Huntress wrote
(in ): On Thu, 9 Nov 2017 12:43:58 -0500, "Jim Wilkins" wrote: "Larry wrote in message ... On Wed, 8 Nov 2017 17:45:28 -0500, "Jim Wilkins" wrote: Week-long storm outages tend to occur in relatively narrow strips, like between all snow and all rain, or wind and flood damage near the coast. They aren't regional like power generation blackouts which we haven't suffered yet, though our safety margin is shrinking due to political opposition to coal, nuclear, pipelines and Canadian hydro. Aren't Leftists wonderful? No to this, no to that, no to the other, then SAVE ME from everything--after they've hosed any systems which could have. Maybe we need two governments. One large one to serve just the Leftists covered by massive taxes paid only by them, then a small one to serve the actual Americans, with few taxes paid only by us. The government they long for would ship their useless butts to the gulag. _Forbes_ says that Maine's power problem is the grid, not generation: [Nov. 5, 2017] "Nearly half of the people living in Maine spent a significant part of last week in the dark after a storm caused widespread power outages. "Central Maine Power, a subsidiary of the Spanish utility holding company Avangrid, reported an estimated 400,000 customer accounts €“ more than 60% of the utilitys customer base €“ were without service on Monday... "...Solar companies did not cause the prolonged power outage in Maine. Neither did deregulation. CMP did. Yes, the same utility company with the slogan "Flip a switch and we're there." "Contrary to what one would suspect based on the slogan, CMPs incompetence and lack of planning turned what should have been a short power outage into a prolonged and painful experience. The mega-scale utility projects proposed by CMP and supported by LePages administration would not have made an iota of difference. "The CMP Maine Power Reliability Program (MPRP) certainly did not keep the lights on in Maine despite the programs $1.4 billion price tag." https://www.forbes.com/sites/william...ers-should-be- outraged-over-worst-power-outage-in-maines-history/#104f6b79fc96 What do you think? Are they right? Not enough information to tell. However, I read the Forbes article to imply that there had been decades of deferred maintenance on Maines power distribution system, and MPRP was the funding vehicle chosen to make the down payment of bringing the distribition system up to snuff. In Puerto Rico, they had the same problem, but no MPRP equivalent, and the hurricanes blew the existing ramshackle system into the sea. Total replacement is underway. Probably take a year. Fortunate for Maine that they are too far North for real hurricanes. Joe Gwinn |
#74
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Thu, 09 Nov 2017 14:46:39 -0500, Joseph Gwinn
wrote: On Nov 9, 2017, Ed Huntress wrote (in ): On Thu, 9 Nov 2017 12:43:58 -0500, "Jim Wilkins" wrote: "Larry wrote in message ... On Wed, 8 Nov 2017 17:45:28 -0500, "Jim Wilkins" wrote: Week-long storm outages tend to occur in relatively narrow strips, like between all snow and all rain, or wind and flood damage near the coast. They aren't regional like power generation blackouts which we haven't suffered yet, though our safety margin is shrinking due to political opposition to coal, nuclear, pipelines and Canadian hydro. Aren't Leftists wonderful? No to this, no to that, no to the other, then SAVE ME from everything--after they've hosed any systems which could have. Maybe we need two governments. One large one to serve just the Leftists covered by massive taxes paid only by them, then a small one to serve the actual Americans, with few taxes paid only by us. The government they long for would ship their useless butts to the gulag. _Forbes_ says that Maine's power problem is the grid, not generation: [Nov. 5, 2017] "Nearly half of the people living in Maine spent a significant part of last week in the dark after a storm caused widespread power outages. "Central Maine Power, a subsidiary of the Spanish utility holding company Avangrid, reported an estimated 400,000 customer accounts – more than 60% of the utility’s customer base – were without service on Monday... "...Solar companies did not cause the prolonged power outage in Maine. Neither did deregulation. CMP did. Yes, the same utility company with the slogan "Flip a switch and we're there." "Contrary to what one would suspect based on the slogan, CMP’s incompetence and lack of planning turned what should have been a short power outage into a prolonged and painful experience. The mega-scale utility projects proposed by CMP and supported by LePage’s administration would not have made an iota of difference. "The CMP Maine Power Reliability Program (MPRP) certainly did not keep the lights on in Maine despite the program’s $1.4 billion price tag." https://www.forbes.com/sites/william...ers-should-be- outraged-over-worst-power-outage-in-maines-history/#104f6b79fc96 What do you think? Are they right? Not enough information to tell. I agree. I thought maybe Jim knows more about it, because he lives with it. However, I read the Forbes article to imply that there had been decades of deferred maintenance on Maine’s power distribution system, and MPRP was the funding vehicle chosen to make the down payment of bringing the distribition system up to snuff. In Puerto Rico, they had the same problem, but no MPRP equivalent, and the hurricanes blew the existing ramshackle system into the sea. Total replacement is underway. Probably take a year. Fortunate for Maine that they are too far North for real hurricanes. Joe Gwinn Yup. I'm less than 3 miles from tidewater and 6 miles from Raritan Bay in NJ. We lost power with Irene in 2011, but it was restored in less than two days. We never lost power with Sandy. -- Ed Huntress |
#75
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"Ed Huntress" wrote in message
... On Thu, 9 Nov 2017 12:43:58 -0500, "Jim Wilkins" wrote: "Larry Jaques" wrote in message . .. On Wed, 8 Nov 2017 17:45:28 -0500, "Jim Wilkins" wrote: Week-long storm outages tend to occur in relatively narrow strips, like between all snow and all rain, or wind and flood damage near the coast. They aren't regional like power generation blackouts which we haven't suffered yet, though our safety margin is shrinking due to political opposition to coal, nuclear, pipelines and Canadian hydro. Aren't Leftists wonderful? No to this, no to that, no to the other, then SAVE ME from everything--after they've hosed any systems which could have. Maybe we need two governments. One large one to serve just the Leftists covered by massive taxes paid only by them, then a small one to serve the actual Americans, with few taxes paid only by us. The government they long for would ship their useless butts to the gulag. _Forbes_ says that Maine's power problem is the grid, not generation: [Nov. 5, 2017] "Nearly half of the people living in Maine spent a significant part of last week in the dark after a storm caused widespread power outages. "Central Maine Power, a subsidiary of the Spanish utility holding company Avangrid, reported an estimated 400,000 customer accounts - more than 60% of the utility's customer base - were without service on Monday... "...Solar companies did not cause the prolonged power outage in Maine. Neither did deregulation. CMP did. Yes, the same utility company with the slogan "Flip a switch and we're there." "Contrary to what one would suspect based on the slogan, CMP's incompetence and lack of planning turned what should have been a short power outage into a prolonged and painful experience. The mega-scale utility projects proposed by CMP and supported by LePage's administration would not have made an iota of difference. "The CMP Maine Power Reliability Program (MPRP) certainly did not keep the lights on in Maine despite the program's $1.4 billion price tag." https://www.forbes.com/sites/william.../#104f6b79fc96 What do you think? Are they right? -- Ed Huntress https://globalresilience.northeaster...power-outages/ "Drought conditions across much of Maine may have contributed to the large numbers of trees that toppled during a storm that walloped the Northeast this week, officials said." The more rural areas of New Hampshire are also the slowest to be restored, as they prioritize the repairs that will help the most people. Maine is settled one town deep along the coast and much of the interior is sparsely populated. -jsw |
#76
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"Ed Huntress" wrote in message
... On Thu, 9 Nov 2017 12:43:58 -0500, "Jim Wilkins" wrote: ... https://www.forbes.com/sites/william.../#104f6b79fc96 What do you think? Are they right? -- Ed Huntress William Pentland is a professional agitator. https://muckrack.com/william-pentland/articles?page=3 |
#77
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Thu, 9 Nov 2017 16:53:13 -0500, "Jim Wilkins"
wrote: "Ed Huntress" wrote in message .. . On Thu, 9 Nov 2017 12:43:58 -0500, "Jim Wilkins" wrote: ... https://www.forbes.com/sites/william.../#104f6b79fc96 What do you think? Are they right? -- Ed Huntress William Pentland is a professional agitator. https://muckrack.com/william-pentland/articles?page=3 Does that mean you disagree that distribution is the problem? -- Ed Huntress |
#78
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Thursday, November 9, 2017 at 2:29:44 AM UTC-5, Michael Terrell wrote:
rangerssuck wrote: On Wednesday, November 8, 2017 at 12:28:33 PM UTC-5, Larry Jaques wrote: [big snip] Just curious: do you continue to get TV and internet when the regional power is down for days/weeks? I have determined that my cable system (Spectrum, formerly Time Warner) stays up for five hours after an outage. That's a disappointingly short time. Do you have any idea how much power it takes to run a CATV distribution system? Those pole mounted power transformers are a 60V, 30A modified square wave from a Constant Voltage Transformer. That is 1800 VA, continuous, and typically powers about a half mile of CATV system. How much do you want to be added to your bill, to extend that three hour design? Go to your local phone company's central office. Take a look at their backup power and then tell me how I get dial tone for $11/month and it's got enough batteries to last until doomsday, and enough generator & fuel to last till the coming of the messiah. The cable company can afford some generators, and if they want to raise everyone's bills a couple of bucks a month to cover their cost, I'd be OK with that. I doubt many other people would notice the increase, tiny as it is compared to the cable company's other increases. |
#79
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
On Thursday, November 9, 2017 at 7:21:23 AM UTC-5, Jim Wilkins wrote:
"rangerssuck" wrote in message ... On Wednesday, November 8, 2017 at 12:28:33 PM UTC-5, Larry Jaques wrote: [big snip] Just curious: do you continue to get TV and internet when the regional power is down for days/weeks? I have determined that my cable system (Spectrum, formerly Time Warner) stays up for five hours after an outage. That's a disappointingly short time. The neighbors tell me they lose Xfinity TV and phone during outages, but not cell service. I no longer ask utilities much about their infrastructure because it arouses suspicions. Yes, it does sometimes raise suspicions. I know what I know about the phone system and its backup power because I spent two years contracting for AT&T in about 30 local offices in the NY metro area. Part of my job was verifying power budgets and delivery to AT&T's colocation cages. The stuff they have in those places is impressive, and it works. My knowledge the cable company power situation is empirically gained. Five hours (give or take a very little) after the power fails, the cable (and data) fail. More interesting (and I have to get some better contacts to find out more) is the electrical utility. During a major outage, I had a talk with a supervisor. I was wondering why it seemed so damned hard to find the busted wire or blown fuse. You know where the lights are on, you know where the lights are out. Look at a friggin map and fix it. "Not so easy" he said. The notion that there's any sort of "grid" in the local system is just a fantasy. A real diagram would be more like a picture of a bowl of spaghetti. I know, for instance that there are loops and parallels and distributed transformers, etc. But still, it seems to me that there could be (at the cost of a few bucks each) a transponder in, say, each transformer that would let them know it's got power. Much easier than driving around with a flashlight to look at the poles & wires. |
#80
Posted to rec.crafts.metalworking
|
|||
|
|||
Electric chainsaw motor
"Ed Huntress" wrote in message
... On Thu, 9 Nov 2017 16:53:13 -0500, "Jim Wilkins" wrote: "Ed Huntress" wrote in message . .. On Thu, 9 Nov 2017 12:43:58 -0500, "Jim Wilkins" wrote: ... https://www.forbes.com/sites/william.../#104f6b79fc96 What do you think? Are they right? -- Ed Huntress William Pentland is a professional agitator. https://muckrack.com/william-pentland/articles?page=3 Does that mean you disagree that distribution is the problem? -- Ed Huntress The storm blew down trees that broke power lines and poles, so in that sense distribution was a problem. The bucket trucks have a safe wind limit of 35(??) MPH which the last storm exceeded all the next day, delaying restoration. The news said a crew could install two poles per day. One of their anchors took Pole Climbing 101 and demonstrated that he already has the right job. A crew had just trimmed the trees near the lines here a week before but they don't touch trees on private property that are further back. I did ask. https://www.eversource.com/Content/g.../tree-trimming Eversource serves NH, MA and CT but not Maine, so I know nothing of conditions there. Eversource brings in crews from all over the Northeast and some from Canada to repair damage quickly, and loans crews out for their problems. I think I've seen a truck from Ohio. Smaller independents are slower to restore power. Eversource has crews on standby for another windstorm tonight. -jsw |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Girly Chainsaw - Girly Chainsaw.jpg (1/1) | Woodworking Plans and Photos | |||
Girly Chainsaw - Girly Chainsaw.jpg (0/1) | Woodworking Plans and Photos | |||
Chainsaw Usage Question From First Time Chainsaw User ? | Home Repair | |||
Chainsaw Usage Question From First Time Chainsaw User ? | Home Repair | |||
Chainsaw Usage Question From First Time Chainsaw User ? | Home Repair |