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#1
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
I would like to install a real transfer switch like this one
http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. I plan on getting a proper permit, but I want to understand the work involved. Here's a picture of our power meter: http://igor.chudov.com/tmp/onan/Dies...d/dscf0209.jpg I understand that the proper electrical placement of the TS is to place it between the power meter and house main breaker. It is the physical layout that has me confused. The meter has a prepunched hole to the right, below the utility seal line. Not sure if it is helpful. After the meter, the electric cable goes right inside the house, to the panel that is right behind the meter (maybe 1 foot long). The question is, how to install a transfer switch here. I aam obviously unable to open the meter to look, since it is sealed. What is the normal location of the transfer switch? How is it usually connected to the meter box? I would think that if, hypothetically, the meter box had a prepunched knockout hole a little above the meter, then I would tap there quite easily, but it does not seem to be the case. I want to do a 100% perfect job here, that would be inspected and all, so I want to do it right. Any good assistance would be appreciated. i P.S. I would like to avoid suggestions like "just get a little 6 circuit emergen transfer switch", it is not the right one for our situation. |
#2
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
On Sun, 20 Aug 2006 21:38:08 +0000, Christopher Tidy wrote:
Ignoramus16089 wrote: I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. I plan on getting a proper permit, but I want to understand the work involved. Here's a picture of our power meter: http://igor.chudov.com/tmp/onan/Dies...d/dscf0209.jpg I understand that the proper electrical placement of the TS is to place it between the power meter and house main breaker. It is the physical layout that has me confused. snip If you don't have ready access to the cable which leads from the meter to the main breaker, or if the cable isn't long enough to cut and wire into the transfer switch, you are going to need to get inside the meter to fit a new cable. Which means getting the electricity board's permission. I expect that I will need to get inside the meter, and will get proper permission. I would be inclined to get a professional electrician to do this. You also need to make sure that the transfer switch is suitable for mounting outside, if you intend to do so. I believe that that one is, but I will call HF or Cutler-Hammer to make sure. i |
#3
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
the transfer switch is a indoor one.
its better to have it inside to minimize kids messing around install new cable from meter to transfer switch, then new cable to existing main panel. How large a generator are you planning? if your from houston with that 13KW unit you might as well get a automatic transfer switch....... |
#4
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
On 20 Aug 2006 14:06:21 -0700, wrote:
the transfer switch is a indoor one. its better to have it inside to minimize kids messing around I thought that I could place a padlock on it. install new cable from meter to transfer switch, then new cable to existing main panel. I will double check how this T.S. is supposed to be used, I will call C-H tomorrow. (indoor vs outdoor rating and padlock/lockout availability) How large a generator are you planning? if your from houston with that 13KW unit you might as well get a automatic transfer switch....... I have a 7 kW Onan DJE generator, http://igor.chudov.com/tmp/onan/Diesel/ i |
#5
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
Did you know theres a safe easier way Legal too!!!
I think its cutler hammer that has a special breaker for generator connection. either the main breaker can be on OR the generator but not both. completely code legal you install this dual pole 240 volt breaker connect your generator and your good to go. Someone posted a link recently WAY cheaper than a transfer switch, no mucking with meter or even permits if your so inclined |
#6
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
Ignoramus16089 wrote: I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. I plan on getting a proper permit, but I want to understand the work involved. Here's a picture of our power meter: http://igor.chudov.com/tmp/onan/Dies...d/dscf0209.jpg I understand that the proper electrical placement of the TS is to place it between the power meter and house main breaker. It is the physical layout that has me confused. The meter has a prepunched hole to the right, below the utility seal line. Not sure if it is helpful. After the meter, the electric cable goes right inside the house, to the panel that is right behind the meter (maybe 1 foot long). The question is, how to install a transfer switch here. I aam obviously unable to open the meter to look, since it is sealed. What is the normal location of the transfer switch? How is it usually connected to the meter box? I would think that if, hypothetically, the meter box had a prepunched knockout hole a little above the meter, then I would tap there quite easily, but it does not seem to be the case. I want to do a 100% perfect job here, that would be inspected and all, so I want to do it right. Any good assistance would be appreciated. i P.S. I would like to avoid suggestions like "just get a little 6 circuit emergen transfer switch", it is not the right one for our situation. The first thing you should do is to determine if you want to put everything on the transfer switch or only the emergency equipment, and leave off the unnecessary items. If you switch everything you will have to have the electric company disconnect the power while you put the switch in the leads from the meter. If you only want the emergency equipment to run ( furnace, lighting, refrigerator, freezer) then you put in a branch ckt and run all emergency the stuff off the branch ckt box. The switch is tied between the branch and the main box. This can be done without having the electric company turn off the power. I would recommend you consult a qualified electrician. John |
#7
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
Ignoramus16089 wrote:
I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. I plan on getting a proper permit, but I want to understand the work involved. Here's a picture of our power meter: http://igor.chudov.com/tmp/onan/Dies...d/dscf0209.jpg I understand that the proper electrical placement of the TS is to place it between the power meter and house main breaker. It is the physical layout that has me confused. snip If you don't have ready access to the cable which leads from the meter to the main breaker, or if the cable isn't long enough to cut and wire into the transfer switch, you are going to need to get inside the meter to fit a new cable. Which means getting the electricity board's permission. I would be inclined to get a professional electrician to do this. You also need to make sure that the transfer switch is suitable for mounting outside, if you intend to do so. Best wishes, Chris |
#8
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
In article ,
Ignoramus16089 wrote: On Sun, 20 Aug 2006 21:38:08 +0000, Christopher Tidy wrote: Ignoramus16089 wrote: I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. I plan on getting a proper permit, but I want to understand the work involved. Here's a picture of our power meter: http://igor.chudov.com/tmp/onan/Dies...d/dscf0209.jpg I understand that the proper electrical placement of the TS is to place it between the power meter and house main breaker. It is the physical layout that has me confused. snip If you don't have ready access to the cable which leads from the meter to the main breaker, or if the cable isn't long enough to cut and wire into the transfer switch, you are going to need to get inside the meter to fit a new cable. Which means getting the electricity board's permission. I expect that I will need to get inside the meter, and will get proper permission. I would be inclined to get a professional electrician to do this. You also need to make sure that the transfer switch is suitable for mounting outside, if you intend to do so. I believe that that one is, but I will call HF or Cutler-Hammer to make sure. i Hey Iggy, what most folks do when installing a "Whole House" transfer switch, is to: 1. Have the electrician make arrangments for with the Power Authority to have a reconnect schedualed after figuing about how long the job will take, then break the seal and remove the Meter, replace the wires from the MeterBase to the Main Breaker with wires long enough to reach thru the short connecting conduit between the Main Panel and the Transfer Switch and connect to the Grid side of the Transfer Switch. 2. Add the wires from the common side of the Transfer Switch back to the Main Breaker in the panel. 3. Have the Power Authority Guy inspect the work, replace and reseal the meter. 4. Finish wiring in the Genset on the Genset side of the Transfer Switch, and your DONE, except writing the the cheque to the electrician, for his services. Bruce in alaska -- add a 2 before @ |
#9
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
In article . com,
" wrote: Did you know theres a safe easier way Legal too!!! I think its cutler hammer that has a special breaker for generator connection. either the main breaker can be on OR the generator but not both. completely code legal you install this dual pole 240 volt breaker connect your generator and your good to go. Someone posted a link recently WAY cheaper than a transfer switch, no mucking with meter or even permits if your so inclined Anyone who would replace a Main Breaker with the Meter (Power still on) still inplace, is either CRAZY, or STUPID..... which one are you??? |
#10
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
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#11
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
On Sun, 20 Aug 2006 17:25:59 -0400, john wrote:
Ignoramus16089 wrote: I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. I plan on getting a proper permit, but I want to understand the work involved. Here's a picture of our power meter: http://igor.chudov.com/tmp/onan/Dies...d/dscf0209.jpg I understand that the proper electrical placement of the TS is to place it between the power meter and house main breaker. It is the physical layout that has me confused. The meter has a prepunched hole to the right, below the utility seal line. Not sure if it is helpful. After the meter, the electric cable goes right inside the house, to the panel that is right behind the meter (maybe 1 foot long). The question is, how to install a transfer switch here. I aam obviously unable to open the meter to look, since it is sealed. What is the normal location of the transfer switch? How is it usually connected to the meter box? I would think that if, hypothetically, the meter box had a prepunched knockout hole a little above the meter, then I would tap there quite easily, but it does not seem to be the case. I want to do a 100% perfect job here, that would be inspected and all, so I want to do it right. Any good assistance would be appreciated. i P.S. I would like to avoid suggestions like "just get a little 6 circuit emergen transfer switch", it is not the right one for our situation. The first thing you should do is to determine if you want to put everything on the transfer switch or only the emergency equipment, and leave off the unnecessary items. If you switch everything you will have to have the electric company disconnect the power while you put the switch in the leads from the meter. Yes, that's what I want. Everything on the switch. If you only want the emergency equipment to run ( furnace, lighting, refrigerator, freezer) then you put in a branch ckt and run all emergency the stuff off the branch ckt box. The switch is tied between the branch and the main box. This can be done without having the electric company turn off the power. I do not want that. I want the entire house on the generator/transfer switch, I would simply not use certain loads that are too heavy for the generator (like central A/C). I have a decent generator that can power my entire house if I turn off A/C, pool heater, and use the electric kitchen range very sparingly. Why should I shortchange myself. Like I said in my original post, I am not interested in a transfer switch for a few circuits. i I would recommend you consult a qualified electrician. John |
#12
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
Where I live I dont need to call them to shut off my power I just pull the
metor out just outside my back door. I called them to let them know that there was no seal on it and that the glass was cracked he said "so what" None of the metors in this town have seal wierd eh! Made replacing my main panel alot easier. john wrote: Ignoramus16089 wrote: I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. I plan on getting a proper permit, but I want to understand the work involved. Here's a picture of our power meter: http://igor.chudov.com/tmp/onan/Dies...d/dscf0209.jpg I understand that the proper electrical placement of the TS is to place it between the power meter and house main breaker. It is the physical layout that has me confused. The meter has a prepunched hole to the right, below the utility seal line. Not sure if it is helpful. After the meter, the electric cable goes right inside the house, to the panel that is right behind the meter (maybe 1 foot long). The question is, how to install a transfer switch here. I aam obviously unable to open the meter to look, since it is sealed. What is the normal location of the transfer switch? How is it usually connected to the meter box? I would think that if, hypothetically, the meter box had a prepunched knockout hole a little above the meter, then I would tap there quite easily, but it does not seem to be the case. I want to do a 100% perfect job here, that would be inspected and all, so I want to do it right. Any good assistance would be appreciated. i P.S. I would like to avoid suggestions like "just get a little 6 circuit emergen transfer switch", it is not the right one for our situation. The first thing you should do is to determine if you want to put everything on the transfer switch or only the emergency equipment, and leave off the unnecessary items. If you switch everything you will have to have the electric company disconnect the power while you put the switch in the leads from the meter. If you only want the emergency equipment to run ( furnace, lighting, refrigerator, freezer) then you put in a branch ckt and run all emergency the stuff off the branch ckt box. The switch is tied between the branch and the main box. This can be done without having the electric company turn off the power. I would recommend you consult a qualified electrician. John |
#13
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
I have pulled a meter too no biggie power company thanked me for
informing them... Had fuse break off in its socket, pulled meter used needlenose to remove broken fuse replaced meter. 15 minutes tops. Its not scary but its a good idea to turn main breaker off first so meter doesnt spark when removed and replaced... again the replacement generator breaker elminates the need for a transfer switch, is NEC code compliant and if it werent for my computer troubles a couple days ago I would have a link |
#14
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
You wrote: In article . com, " wrote: Did you know theres a safe easier way Legal too!!! I think its cutler hammer that has a special breaker for generator connection. either the main breaker can be on OR the generator but not both. completely code legal you install this dual pole 240 volt breaker connect your generator and your good to go. Someone posted a link recently WAY cheaper than a transfer switch, no mucking with meter or even permits if your so inclined Anyone who would replace a Main Breaker with the Meter (Power still on) still inplace, is either CRAZY, or STUPID..... which one are you??? .. Intellitroll (tm): This should be good for a brief discussion of electrical safety. Lucy, 'splain to me how shutting off the breaker (no current through the breaker or the breaker contacts, and snapping the breaker of the contacts ain't safe? With no current through the breaker, there's no current through the contacts to make an arc when the breaker is removed. And what about those CRAZY and STUPID birds that sit on those uninsulated live wires that feed juice to the pole pigs? Of course, after the breaker is out, don't be licking your finger and touching the the box's breaker contacts. And the new breaker must be put back immediately. A transfer switch breaker would have to have additional contacts, but in the main power "off" position the genny contacts and the house side contacts are isolated from the line. Have fun with this one. I'm going to sit back and observe now. |
#15
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
On Sun, 20 Aug 2006 21:47:25 GMT, Bruce in Alaska wrote:
In article , Ignoramus16089 wrote: On Sun, 20 Aug 2006 21:38:08 +0000, Christopher Tidy wrote: Ignoramus16089 wrote: I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. I plan on getting a proper permit, but I want to understand the work involved. Here's a picture of our power meter: http://igor.chudov.com/tmp/onan/Dies...d/dscf0209.jpg I understand that the proper electrical placement of the TS is to place it between the power meter and house main breaker. It is the physical layout that has me confused. snip If you don't have ready access to the cable which leads from the meter to the main breaker, or if the cable isn't long enough to cut and wire into the transfer switch, you are going to need to get inside the meter to fit a new cable. Which means getting the electricity board's permission. I expect that I will need to get inside the meter, and will get proper permission. I would be inclined to get a professional electrician to do this. You also need to make sure that the transfer switch is suitable for mounting outside, if you intend to do so. I believe that that one is, but I will call HF or Cutler-Hammer to make sure. i Hey Iggy, what most folks do when installing a "Whole House" transfer switch, is to: 1. Have the electrician make arrangments for with the Power Authority to have a reconnect schedualed after figuing about how long the job will take, then break the seal and remove the Meter, replace the wires from the MeterBase to the Main Breaker with wires long enough to reach thru the short connecting conduit between the Main Panel and the Transfer Switch and connect to the Grid side of the Transfer Switch. 2. Add the wires from the common side of the Transfer Switch back to the Main Breaker in the panel. 3. Have the Power Authority Guy inspect the work, replace and reseal the meter. 4. Finish wiring in the Genset on the Genset side of the Transfer Switch, and your DONE, except writing the the cheque to the electrician, for his services. Bruce, thanks. Couple questions. Would you say that the better place for T.S. is inside, as someone else suggested, rather than outside? Can i use [more flexible and easier to work with] properly sized welding wire? i |
#16
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
Hey Iggy, what most folks do when installing a "Whole House" transfer switch, is to: 1. Have the electrician make arrangments for with the Power Authority to have a reconnect schedualed after figuing about how long the job will take, then break the seal and remove the Meter, replace the wires from the MeterBase to the Main Breaker with wires long enough to reach thru the short connecting conduit between the Main Panel and the Transfer Switch and connect to the Grid side of the Transfer Switch. 2. Add the wires from the common side of the Transfer Switch back to the Main Breaker in the panel. 3. Have the Power Authority Guy inspect the work, replace and reseal the meter. 4. Finish wiring in the Genset on the Genset side of the Transfer Switch, and your DONE, except writing the the cheque to the electrician, for his services. Bruce in alaska -- all unnecessary with that breaker kit.............. |
#17
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
Ignoramus16089 wrote: On Sun, 20 Aug 2006 17:25:59 -0400, john wrote: Ignoramus16089 wrote: I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. I plan on getting a proper permit, but I want to understand the work involved. Here's a picture of our power meter: http://igor.chudov.com/tmp/onan/Dies...d/dscf0209.jpg I understand that the proper electrical placement of the TS is to place it between the power meter and house main breaker. It is the physical layout that has me confused. The meter has a prepunched hole to the right, below the utility seal line. Not sure if it is helpful. After the meter, the electric cable goes right inside the house, to the panel that is right behind the meter (maybe 1 foot long). The question is, how to install a transfer switch here. I aam obviously unable to open the meter to look, since it is sealed. What is the normal location of the transfer switch? How is it usually connected to the meter box? I would think that if, hypothetically, the meter box had a prepunched knockout hole a little above the meter, then I would tap there quite easily, but it does not seem to be the case. I want to do a 100% perfect job here, that would be inspected and all, so I want to do it right. Any good assistance would be appreciated. i P.S. I would like to avoid suggestions like "just get a little 6 circuit emergen transfer switch", it is not the right one for our situation. The first thing you should do is to determine if you want to put everything on the transfer switch or only the emergency equipment, and leave off the unnecessary items. If you switch everything you will have to have the electric company disconnect the power while you put the switch in the leads from the meter. Yes, that's what I want. Everything on the switch. If you only want the emergency equipment to run ( furnace, lighting, refrigerator, freezer) then you put in a branch ckt and run all emergency the stuff off the branch ckt box. The switch is tied between the branch and the main box. This can be done without having the electric company turn off the power. I do not want that. I want the entire house on the generator/transfer switch, I would simply not use certain loads that are too heavy for the generator (like central A/C). I have a decent generator that can power my entire house if I turn off A/C, pool heater, and use the electric kitchen range very sparingly. Why should I shortchange myself. Like I said in my original post, I am not interested in a transfer switch for a few circuits. i I would recommend you consult a qualified electrician. John Iggy, instead of an automatic transfer switch, we put in a manual one (i.e. just a big, properly enclosed knife switch setup). Manual control (if you are at home) is pretty easy, and I wonder what kind of erroneous responses you can get out of an automatic setup. Our generator is (I think) 7.5kW, it works very nicely to run our house on the odd occasion we need it. It takes over the panel (via the big switch) and feeds the whole house, we just take care not to overload it. We decided we needed it after hearing about the ice storm (10 years ago?) here in Maine where many people were without power for over a week. Steve |
#18
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
On Sun, 20 Aug 2006 22:08:47 -0400, Steve Smith wrote:
Ignoramus16089 wrote: On Sun, 20 Aug 2006 17:25:59 -0400, john wrote: Ignoramus16089 wrote: I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. I plan on getting a proper permit, but I want to understand the work involved. Here's a picture of our power meter: http://igor.chudov.com/tmp/onan/Dies...d/dscf0209.jpg I understand that the proper electrical placement of the TS is to place it between the power meter and house main breaker. It is the physical layout that has me confused. The meter has a prepunched hole to the right, below the utility seal line. Not sure if it is helpful. After the meter, the electric cable goes right inside the house, to the panel that is right behind the meter (maybe 1 foot long). The question is, how to install a transfer switch here. I aam obviously unable to open the meter to look, since it is sealed. What is the normal location of the transfer switch? How is it usually connected to the meter box? I would think that if, hypothetically, the meter box had a prepunched knockout hole a little above the meter, then I would tap there quite easily, but it does not seem to be the case. I want to do a 100% perfect job here, that would be inspected and all, so I want to do it right. Any good assistance would be appreciated. i P.S. I would like to avoid suggestions like "just get a little 6 circuit emergen transfer switch", it is not the right one for our situation. The first thing you should do is to determine if you want to put everything on the transfer switch or only the emergency equipment, and leave off the unnecessary items. If you switch everything you will have to have the electric company disconnect the power while you put the switch in the leads from the meter. Yes, that's what I want. Everything on the switch. If you only want the emergency equipment to run ( furnace, lighting, refrigerator, freezer) then you put in a branch ckt and run all emergency the stuff off the branch ckt box. The switch is tied between the branch and the main box. This can be done without having the electric company turn off the power. I do not want that. I want the entire house on the generator/transfer switch, I would simply not use certain loads that are too heavy for the generator (like central A/C). I have a decent generator that can power my entire house if I turn off A/C, pool heater, and use the electric kitchen range very sparingly. Why should I shortchange myself. Like I said in my original post, I am not interested in a transfer switch for a few circuits. i I would recommend you consult a qualified electrician. John Iggy, instead of an automatic transfer switch, we put in a manual one (i.e. just a big, properly enclosed knife switch setup). yep, that's exactly what I want, and that's what the switch that I mentioned in my original post, does. Manual control (if you are at home) is pretty easy, and I wonder what kind of erroneous responses you can get out of an automatic setup. I agree 100%. I would not install an automatic transfer switch in my worst nightmare. Our generator is (I think) 7.5kW, it works very nicely to run our house on the odd occasion we need it. It takes over the panel (via the big switch) and feeds the whole house, we just take care not to overload it. Exactly my plan. Plus I am planning on sharing this with my neighbors, so that they can run some fridges and furnaces. i |
#19
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
the main breaker most of the time needs wired in...not snaped in...
Better shut off the power... |
#20
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
In article ,
Ignoramus16089 wrote: On Sun, 20 Aug 2006 22:08:47 -0400, Steve Smith wrote: Ignoramus16089 wrote: On Sun, 20 Aug 2006 17:25:59 -0400, john wrote: Ignoramus16089 wrote: I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. I plan on getting a proper permit, but I want to understand the work involved. Here's a picture of our power meter: http://igor.chudov.com/tmp/onan/Dies...d/dscf0209.jpg I understand that the proper electrical placement of the TS is to place it between the power meter and house main breaker. It is the physical layout that has me confused. The meter has a prepunched hole to the right, below the utility seal line. Not sure if it is helpful. After the meter, the electric cable goes right inside the house, to the panel that is right behind the meter (maybe 1 foot long). The question is, how to install a transfer switch here. I aam obviously unable to open the meter to look, since it is sealed. What is the normal location of the transfer switch? How is it usually connected to the meter box? I would think that if, hypothetically, the meter box had a prepunched knockout hole a little above the meter, then I would tap there quite easily, but it does not seem to be the case. I want to do a 100% perfect job here, that would be inspected and all, so I want to do it right. Any good assistance would be appreciated. i P.S. I would like to avoid suggestions like "just get a little 6 circuit emergen transfer switch", it is not the right one for our situation. The first thing you should do is to determine if you want to put everything on the transfer switch or only the emergency equipment, and leave off the unnecessary items. If you switch everything you will have to have the electric company disconnect the power while you put the switch in the leads from the meter. Yes, that's what I want. Everything on the switch. If you only want the emergency equipment to run ( furnace, lighting, refrigerator, freezer) then you put in a branch ckt and run all emergency the stuff off the branch ckt box. The switch is tied between the branch and the main box. This can be done without having the electric company turn off the power. I do not want that. I want the entire house on the generator/transfer switch, I would simply not use certain loads that are too heavy for the generator (like central A/C). I have a decent generator that can power my entire house if I turn off A/C, pool heater, and use the electric kitchen range very sparingly. Why should I shortchange myself. Like I said in my original post, I am not interested in a transfer switch for a few circuits. i I would recommend you consult a qualified electrician. John Iggy, instead of an automatic transfer switch, we put in a manual one (i.e. just a big, properly enclosed knife switch setup). yep, that's exactly what I want, and that's what the switch that I mentioned in my original post, does. Manual control (if you are at home) is pretty easy, and I wonder what kind of erroneous responses you can get out of an automatic setup. I agree 100%. I would not install an automatic transfer switch in my worst nightmare. Y'know, I recall a post someplace (I'll be dipped if I can recall where) about doing the "100% manual, total-switchover" thing. Let's see if memory serves me - Wire generator to appropriate-sized box containing proper amperage power socket. Wire meter side to an identical-but-separate box/socket nearby. Wire house side to appropriate-sized box with a pigtail ending in a single plug that matches the two sockets, placed so that the plug can easily be plugged into either socket. Grid operation: The house pigtail is plugged into the meter socket. Generator operation: The house pigtail is pulled out of the meter socket and plugged into the generator socket. Seems to me that would constitute absolutely failsafe generator isolation/switching for "Real Cheap", and should still be kosher to inspectors, assuming proper wire sizes/sockets/plug/etc. go into the work. I also remember reading about a neighborhood "emergency power co-op" that had many of the houses set up in a simliar way, with the special purpose of keeping things cold/warm. A special FFF - "Fridge, Freezer & Furnace" circuit ran out to a setup as described. Normal operation had that circuit plugged into a dedicated box off the breaker panel. During an extended outage, a shared generator with a custom pigtail to a socket matching the house plugs made the rounds - A couple hours at each place kept everything frozen proper and/or warmed up the house. Our generator is (I think) 7.5kW, it works very nicely to run our house on the odd occasion we need it. It takes over the panel (via the big switch) and feeds the whole house, we just take care not to overload it. Exactly my plan. Plus I am planning on sharing this with my neighbors, so that they can run some fridges and furnaces. EEP!!!! RUN AWAY! You're setting yourself up for a complete disaster if you try that action! You *DON'T* want to be dinking around running extension cords to neighbors when you're running off a genny - The losses in the cords will eat you (and your generator - and if things go completely wrong, one or more houses...) alive unless you're in a rowhouse/apartment building type situation. (and even then, you're dicey) -- Don Bruder - - If your "From:" address isn't on my whitelist, or the subject of the message doesn't contain the exact text "PopperAndShadow" somewhere, any message sent to this address will go in the garbage without my ever knowing it arrived. Sorry... http://www.sonic.net/~dakidd for more info |
#21
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Steps for installing a transfer switch
Ignoramus16089 wrote: On Sun, 20 Aug 2006 22:08:47 -0400, Steve Smith wrote: Ignoramus16089 wrote: On Sun, 20 Aug 2006 17:25:59 -0400, john wrote: Ignoramus16089 wrote: I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. I plan on getting a proper permit, but I want to understand the work involved. Here's a picture of our power meter: http://igor.chudov.com/tmp/onan/Dies...d/dscf0209.jpg I understand that the proper electrical placement of the TS is to place it between the power meter and house main breaker. It is the physical layout that has me confused. The meter has a prepunched hole to the right, below the utility seal line. Not sure if it is helpful. After the meter, the electric cable goes right inside the house, to the panel that is right behind the meter (maybe 1 foot long). The question is, how to install a transfer switch here. I aam obviously unable to open the meter to look, since it is sealed. What is the normal location of the transfer switch? How is it usually connected to the meter box? I would think that if, hypothetically, the meter box had a prepunched knockout hole a little above the meter, then I would tap there quite easily, but it does not seem to be the case. I want to do a 100% perfect job here, that would be inspected and all, so I want to do it right. Any good assistance would be appreciated. i P.S. I would like to avoid suggestions like "just get a little 6 circuit emergen transfer switch", it is not the right one for our situation. The first thing you should do is to determine if you want to put everything on the transfer switch or only the emergency equipment, and leave off the unnecessary items. If you switch everything you will have to have the electric company disconnect the power while you put the switch in the leads from the meter. Yes, that's what I want. Everything on the switch. If you only want the emergency equipment to run ( furnace, lighting, refrigerator, freezer) then you put in a branch ckt and run all emergency the stuff off the branch ckt box. The switch is tied between the branch and the main box. This can be done without having the electric company turn off the power. I do not want that. I want the entire house on the generator/transfer switch, I would simply not use certain loads that are too heavy for the generator (like central A/C). I have a decent generator that can power my entire house if I turn off A/C, pool heater, and use the electric kitchen range very sparingly. Why should I shortchange myself. Like I said in my original post, I am not interested in a transfer switch for a few circuits. i I would recommend you consult a qualified electrician. John Iggy, instead of an automatic transfer switch, we put in a manual one (i.e. just a big, properly enclosed knife switch setup). yep, that's exactly what I want, and that's what the switch that I mentioned in my original post, does. Manual control (if you are at home) is pretty easy, and I wonder what kind of erroneous responses you can get out of an automatic setup. I agree 100%. I would not install an automatic transfer switch in my worst nightmare. Our generator is (I think) 7.5kW, it works very nicely to run our house on the odd occasion we need it. It takes over the panel (via the big switch) and feeds the whole house, we just take care not to overload it. Exactly my plan. Plus I am planning on sharing this with my neighbors, so that they can run some fridges and furnaces. i I misunderstood (or more likely didn't read close enough) previous posts. Steve |
#22
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Steps for installing a transfer switch
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#23
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Steps for installing a transfer switch
Ignoramus16089 wrote:
On 20 Aug 2006 14:19:31 -0700, wrote: Did you know theres a safe easier way Legal too!!! I think its cutler hammer that has a special breaker for generator connection. either the main breaker can be on OR the generator but not both. My panel is by ITE Gould. (which I think is compatible with homeline). There is a company interlockkit.com, but I do not like their product, personally. i completely code legal you install this dual pole 240 volt breaker connect your generator and your good to go. Someone posted a link recently WAY cheaper than a transfer switch, no mucking with meter or even permits if your so inclined Square D makes generator back feed interlock kits for several of their panels. I installed on in the new QO panel I recently installed. http://ecatalog.squared.com/techlib/...00892680126e4f Pete C. |
#25
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Steps for installing a transfer switch
Whats in that box with the wheels? Looks interesting
"Ignoramus16089" wrote in message ... I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. I plan on getting a proper permit, but I want to understand the work involved. Here's a picture of our power meter: http://igor.chudov.com/tmp/onan/Dies...d/dscf0209.jpg I understand that the proper electrical placement of the TS is to place it between the power meter and house main breaker. It is the physical layout that has me confused. The meter has a prepunched hole to the right, below the utility seal line. Not sure if it is helpful. After the meter, the electric cable goes right inside the house, to the panel that is right behind the meter (maybe 1 foot long). The question is, how to install a transfer switch here. I aam obviously unable to open the meter to look, since it is sealed. What is the normal location of the transfer switch? How is it usually connected to the meter box? I would think that if, hypothetically, the meter box had a prepunched knockout hole a little above the meter, then I would tap there quite easily, but it does not seem to be the case. I want to do a 100% perfect job here, that would be inspected and all, so I want to do it right. Any good assistance would be appreciated. i P.S. I would like to avoid suggestions like "just get a little 6 circuit emergen transfer switch", it is not the right one for our situation. |
#26
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Steps for installing a transfer switch
On Mon, 21 Aug 2006 14:28:04 -0400, Saul wrote:
Whats in that box with the wheels? Looks interesting generator. http://igor.chudov.com/tmp/onan/Diesel/ i "Ignoramus16089" wrote in message ... I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. I plan on getting a proper permit, but I want to understand the work involved. Here's a picture of our power meter: http://igor.chudov.com/tmp/onan/Dies...d/dscf0209.jpg I understand that the proper electrical placement of the TS is to place it between the power meter and house main breaker. It is the physical layout that has me confused. The meter has a prepunched hole to the right, below the utility seal line. Not sure if it is helpful. After the meter, the electric cable goes right inside the house, to the panel that is right behind the meter (maybe 1 foot long). The question is, how to install a transfer switch here. I aam obviously unable to open the meter to look, since it is sealed. What is the normal location of the transfer switch? How is it usually connected to the meter box? I would think that if, hypothetically, the meter box had a prepunched knockout hole a little above the meter, then I would tap there quite easily, but it does not seem to be the case. I want to do a 100% perfect job here, that would be inspected and all, so I want to do it right. Any good assistance would be appreciated. i P.S. I would like to avoid suggestions like "just get a little 6 circuit emergen transfer switch", it is not the right one for our situation. |
#27
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Steps for installing a transfer switch
Ignoramus4235 wrote:
On Mon, 21 Aug 2006 16:06:00 GMT, Pete C. wrote: Ignoramus16089 wrote: On 20 Aug 2006 14:19:31 -0700, wrote: Did you know theres a safe easier way Legal too!!! I think its cutler hammer that has a special breaker for generator connection. either the main breaker can be on OR the generator but not both. My panel is by ITE Gould. (which I think is compatible with homeline). There is a company interlockkit.com, but I do not like their product, personally. i completely code legal you install this dual pole 240 volt breaker connect your generator and your good to go. Someone posted a link recently WAY cheaper than a transfer switch, no mucking with meter or even permits if your so inclined Square D makes generator back feed interlock kits for several of their panels. I installed on in the new QO panel I recently installed. http://ecatalog.squared.com/techlib/...00892680126e4f Pete, your link did not work for me, sorry. If Homeline is a brand of Square D, I will just call them on the phone. i You are correct, that link does appear to be hosed. This one works: http://www.squared.com/us/applications/residential.nsf/LookupFiles/RetaiLinkDec2002small.pdf/$file/RetaiLinkDec2002small.pdf I don't believe these kits are applicable to panel models other than QO and Homeline, even if the Homeline breakers follow the standardized 1" breaker format. Pete C. |
#28
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Steps for installing a transfer switch
In article ,
Ignoramus16089 wrote: Hey Iggy, what most folks do when installing a "Whole House" transfer switch, is to: 1. Have the electrician make arrangments for with the Power Authority to have a reconnect schedualed after figuing about how long the job will take, then break the seal and remove the Meter, replace the wires from the MeterBase to the Main Breaker with wires long enough to reach thru the short connecting conduit between the Main Panel and the Transfer Switch and connect to the Grid side of the Transfer Switch. 2. Add the wires from the common side of the Transfer Switch back to the Main Breaker in the panel. 3. Have the Power Authority Guy inspect the work, replace and reseal the meter. 4. Finish wiring in the Genset on the Genset side of the Transfer Switch, and your DONE, except writing the the cheque to the electrician, for his services. Bruce, thanks. Couple questions. Would you say that the better place for T.S. is inside, as someone else suggested, rather than outside? Can i use [more flexible and easier to work with] properly sized welding wire? i I would install the Transfer Switch as close to the Main Panel as possible. Typically, adjacent with a 1 1/2" Dia. nipple in between, as you can run the new wires from the MeterBase into the Main Panel, and thru the nipple to the Transfer Switch, and then from the Transfer Switch back to the Main Breaker. This keeps the runs short, and makes for centrally located Home Power Managment, as you may want to drop some of the loads offline in the Main Panel when running OffGrid on the Genset. You can use any UL 600V Insulated wire, of the appropriate size for the current, that suits you. It is the Insulation Rating that the Inspector will be looking at. Typically Welding Cable isn't rated at 600V, so you may have to find a suitable wire that has the UL Insulation Rating approprite to the service. Bruce in alaska who likes Welding Cable for Battery Jumpers and Inverter Dc Feedlines....... -- add a 2 before @ |
#29
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Steps for installing a transfer switch
On Mon, 21 Aug 2006 19:55:51 GMT, Bruce in Alaska wrote:
I would install the Transfer Switch as close to the Main Panel as possible. Typically, adjacent with a 1 1/2" Dia. nipple in between, as you can run the new wires from the MeterBase into the Main Panel, and thru the nipple to the Transfer Switch, and then from the Transfer Switch back to the Main Breaker. This keeps the runs short, and makes for centrally located Home Power Managment, as you may want to drop some of the loads offline in the Main Panel when running OffGrid on the Genset. OK, I like this idea a lot. I will do it exactly as you say, all my doubts have been resolved. You can use any UL 600V Insulated wire, of the appropriate size for the current, that suits you. It is the Insulation Rating that the Inspector will be looking at. Typically Welding Cable isn't rated at 600V, so you may have to find a suitable wire that has the UL Insulation Rating approprite to the service. OK, I will definitely look for suitable 600v rated wire -- the flexible wire is so much easier to work with, it is worth the extra $$ -- not that much for just a dozen feet or so. i |
#30
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Steps for installing a transfer switch
On Sun, 20 Aug 2006 19:38:19 GMT, Ignoramus16089
wrote: I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. I plan on getting a proper permit, but I want to understand the work involved. Here's a picture of our power meter: http://igor.chudov.com/tmp/onan/Dies...d/dscf0209.jpg I understand that the proper electrical placement of the TS is to place it between the power meter and house main breaker. It is the physical layout that has me confused. It would be best there, but you might want a safety switch before that... You're going to make me go get my copy of NEC aren't you? The new one has a whole section on transfer switches and generator connections - and I didn't memorize the darned thing. But with your luck, your local codes are locally written and totally different. They really aren't standardized that well. Make it easy on yourself - Call your local city/county building inspector, make an appointment for a pow-wow and talk it over, ask him/her what he wants to see. You can over-engineer it and make it "perfect" - but why? KISS. The meter has a prepunched hole to the right, below the utility seal line. Not sure if it is helpful. After the meter, the electric cable goes right inside the house, to the panel that is right behind the meter (maybe 1 foot long). The question is, how to install a transfer switch here. I aam obviously unable to open the meter to look, since it is sealed. You could stick it to one side of the meter socket, and put a big nipple or fitting between the boxes - but it's not the preferred method. You would have to send the 'Utility In' and 'Switch Out' power going through the same conduit and through the same meter socket can, and it would be too easy to get an accidental backfeed out onto the utility lines. ESPECIALLY if someone else gets in there and isn't clear on the concept. I'd put the transfer switch off to one side of the main, and abandon the wires going out the back of the meter socket can directly to the house breaker panel. Make a new house feed out the back of the transfer switch going inside to the house breaker panel. And at the bottom of the transfer switch you put a landing-lug box where the leads from the portable generator tie down. Try to lay it out so the wires inside the transfer switch can do not physically cross inside the can - so if the wires get all hot and melty (technical term, I know...) they can't make an unintentional cross connection. What is the normal location of the transfer switch? How is it usually connected to the meter box? I've always seen them in commercial situations with the Utility Main Breaker placed ahead of the transfer switch, so they can open that breaker as a drop-dead "No Way In HELL it can backfeed" safety. The extra safety step makes the utility linemen working on the snapped lines much happier when they hear a generator running way off in the distance. That way you still have the separate Fire Alarm disconnect in parallel with the Main Breaker as a place to monitor whether the Utility Power has come back up. (For a business they might turn off and lock the Main and kill the lights for non-payment, but they have to leave the Fire Alarm feed on or the insurance coverage goes away. And it's also a Life Safety issue.) In a residential situation, if you want to change over the entire house on the transfer switch you'd need a separate fused switch or enclosed breaker to power the monitor light. And get the concept cleared by the local inspector. Otherwise, how do you know for sure when they've got the utility power back on? I would think that if, hypothetically, the meter box had a prepunched knockout hole a little above the meter, then I would tap there quite easily, but it does not seem to be the case. If it's a safe place to make a hole, you can get a pilot drill and a knockout punch and blast a hole through the side of the can in about two minutes. They can't put knockouts everywhere anyone could possibly need them, or the can would fall apart... I want to do a 100% perfect job here, that would be inspected and all, so I want to do it right. Any good assistance would be appreciated. "Perfect" is an unreachable goal unless you are Bill Gates and have a ton o' money to spend on "Perfect" - Lets see here... A 40KW or 60KW genset with a ton of excess motor- starting oomph and automatic transfer switch, a large fuel tank, and a big UPS inverter running all the critical systems in the house as hold-over - That'll only cost you 25 grand or so to set up... The lights go out partially, you hear a very muted engine cranking and starting outside, and 15 seconds later all the lights pop back on like nothing happened, and will stay that way for days. And the genset is big enough that no power budgeting is needed, you can be working in the shop on the lathe with the AC up full blast while the Mrs. is baking in the electric oven, no worries. -- Bruce -- |
#31
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Steps for installing a transfer switch
no one that you know wrote:
Where I live I dont need to call them to shut off my power I just pull the metor out just outside my back door. I called them to let them know that there was no seal on it and that the glass was cracked he said "so what" None of the metors in this town have seal wierd eh! Made replacing my main panel alot easier. My meter has been without a seal for several years now . Called the power company when I first broke the seal to work on my breaker box , they never came out to replace it . My panel was replaced recently too - after I looked inside and saw the AC breaker arcing on the tab . Got a buncha poles not being used - yet . Also got the capacity to wire my shed/shop properly now , with it's own box . Which is where I'll feed the main panel from next time I need to use the generator . Betcha if my power usage goes down significantly they'll be out with a seal . And a warrant . Only ones that get to steal from the utility company here are the people in charge ... -- Snag aka OSG #1 '76 FLH "Bag Lady" BS132 SENS NEWT "A hand shift is a manly shift ." shamelessly stolen none to one to reply |
#32
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
"Ignoramus16089" wrote in message ... I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. Is this 200 amps at 120, or 200 amps at 240? You have 240 service, but are the amps 200 from hot to hot, or the sum of each leg to neutral? 200 amps at 240 is 48kw. I question because 48kw is vastly in excess of typical residential power requirements. Consider the possibility that the next size down the 100 amp unit, is the fit. The 200 amp unit is a HUGE box! It's designed to switch a 48kw hot load. We have a master disconnect. The transfer switch is located between the master disconnect and the main panel. We use a second transfer switch to disconnect optional loads, and shunt them directly to a 2nd generator. I plan on getting a proper permit, but I want to understand the work involved. Here's a picture of our power meter: http://igor.chudov.com/tmp/onan/Dies...d/dscf0209.jpg I understand that the proper electrical placement of the TS is to place it between the power meter and house main breaker. It is the physical layout that has me confused. The meter has a prepunched hole to the right, below the utility seal line. Not sure if it is helpful. After the meter, the electric cable goes right inside the house, to the panel that is right behind the meter (maybe 1 foot long). The question is, how to install a transfer switch here. I aam obviously unable to open the meter to look, since it is sealed. What is the normal location of the transfer switch? How is it usually connected to the meter box? I would think that if, hypothetically, the meter box had a prepunched knockout hole a little above the meter, then I would tap there quite easily, but it does not seem to be the case. I want to do a 100% perfect job here, that would be inspected and all, so I want to do it right. Any good assistance would be appreciated. i P.S. I would like to avoid suggestions like "just get a little 6 circuit emergen transfer switch", it is not the right one for our situation. |
#33
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Steps for installing a transfer switch
On Tue, 22 Aug 2006 15:29:56 -0400, Robert Morein wrote:
"Ignoramus16089" wrote in message ... I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. Is this 200 amps at 120, or 200 amps at 240? You have 240 service, but are the amps 200 from hot to hot, or the sum of each leg to neutral? 200 amps at 240 is 48kw. I question because 48kw is vastly in excess of typical residential power requirements. I have a 240V panel, and the breaker says "200" on its handle. It is a breaker that would open if current through one of its legs exceeded 200 amps (that's a nominal rating, meaning that it would allow for momentary overcurrents to some extent). While I rarely use 43 kW of power, I do at times use a lot of power. Example. I am TIG welding in my garage, my wife is cooking a lot of food on the range, my A/C is running, etc. That could easily add up to 140 amps or more (and would be a very rare occurrence). Consider the possibility that the next size down the 100 amp unit, is the fit. The 200 amp unit is a HUGE box! It's designed to switch a 48kw hot load. Well, I would surely be happy to use a smaller and cheaper box, if it was possible, but it is my understanding that the rating of transfer switch should match the rating of the house's electrical service. We have a master disconnect. The transfer switch is located between the master disconnect and the main panel. We use a second transfer switch to disconnect optional loads, and shunt them directly to a 2nd generator. sounds interesting. i |
#34
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Steps for installing a transfer switch
Ignoramus20689 wrote:
i Well, I would surely be happy to use a smaller and cheaper box, if it was possible, but it is my understanding that the rating of transfer switch should match the rating of the house's electrical service. Well you could put in a sub panel and put the transfer switch in the feed to the sub panel I have been following this tread because I am thinking of going the sub panel rout. The down side is you have to decide which circuits will be on the sub panel. I my case its only the well. the outlets in the kitchen and the lights in the kitchen. Bill K7NOM |
#35
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Steps for installing a transfer switch
On Tue, 22 Aug 2006 23:29:54 GMT, Bill Janssen wrote:
Ignoramus20689 wrote: i Well, I would surely be happy to use a smaller and cheaper box, if it was possible, but it is my understanding that the rating of transfer switch should match the rating of the house's electrical service. Well you could put in a sub panel and put the transfer switch in the feed to the sub panel I have been following this tread because I am thinking of going the sub panel rout. The down side is you have to decide which circuits will be on the sub panel. I my case its only the well. the outlets in the kitchen and the lights in the kitchen. In my case, I have a lot of circuits, most of which supply some important loads but draw very little current, like compact fluorescent lighting. So choosing only very few of them would inconvenience me greatly. i |
#36
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
Ignoramus20689 wrote: On Tue, 22 Aug 2006 23:29:54 GMT, Bill Janssen wrote: Ignoramus20689 wrote: i Well, I would surely be happy to use a smaller and cheaper box, if it was possible, but it is my understanding that the rating of transfer switch should match the rating of the house's electrical service. Well you could put in a sub panel and put the transfer switch in the feed to the sub panel I have been following this tread because I am thinking of going the sub panel rout. The down side is you have to decide which circuits will be on the sub panel. I my case its only the well. the outlets in the kitchen and the lights in the kitchen. In my case, I have a lot of circuits, most of which supply some important loads but draw very little current, like compact fluorescent lighting. So choosing only very few of them would inconvenience me greatly. i I have a feeling I'm going to regret this, but here goes... I too was concerned with the limited number of circuits available with typical, sub panel type transfer switches. I have a 16kw generator, and a 16 circuit sub panel type ATS. I have circuits that literally draw less than an amp or two in most situations, never more than 5 amps. I just wired them together in the main panel. Kind of rigged my 16 circuit sub panel into an ever expanding sub panel, probably 24 or more circuits are controlled now. It's an automatic transfer switch, which I know you do not want, but I did the same thing last year when a hurricane hit and I had a 6 circuit manual switch. I had 6 circuits wired, but was using a fraction of the generator's power. At the time, I had a 7500 watt generator, and averaged about 2000 watts. So I added rooms as needed, with no ill effects. FWIW it's a Generac 5244 generator and matched transfer switch. I thought about the service disconnect, whole house transfer switch, but I know my family cannot control their energy consumption. When breaking in my generator, my wife turned on the Advantium oven (microwave on steroids). It kept up, but only because the 5 ton AC was not running. And I cautioned about turning on lights when breaking in.......... Brad |
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Steps for installing a transfer switch
Ignoramus20689 wrote:
On Tue, 22 Aug 2006 15:29:56 -0400, Robert Morein wrote: "Ignoramus16089" wrote in message ... I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. Is this 200 amps at 120, or 200 amps at 240? You have 240 service, but are the amps 200 from hot to hot, or the sum of each leg to neutral? 200 amps at 240 is 48kw. I question because 48kw is vastly in excess of typical residential power requirements. I have a 240V panel, and the breaker says "200" on its handle. It is a breaker that would open if current through one of its legs exceeded 200 amps (that's a nominal rating, meaning that it would allow for momentary overcurrents to some extent). While I rarely use 43 kW of power, I do at times use a lot of power. Example. I am TIG welding in my garage, my wife is cooking a lot of food on the range, my A/C is running, etc. That could easily add up to 140 amps or more (and would be a very rare occurrence). Consider the possibility that the next size down the 100 amp unit, is the fit. The 200 amp unit is a HUGE box! It's designed to switch a 48kw hot load. Well, I would surely be happy to use a smaller and cheaper box, if it was possible, but it is my understanding that the rating of transfer switch should match the rating of the house's electrical service. We have a master disconnect. The transfer switch is located between the master disconnect and the main panel. We use a second transfer switch to disconnect optional loads, and shunt them directly to a 2nd generator. sounds interesting. i You have identified the correct switch. A two hundred ampere main breaker results in the need for a two hundred ampere transfer assembly. Be advised that a main breaker interlock kit will achieve the same result at far lower cost. What brand and model is your main breaker enclosure; such as your main distribution panel? -- Tom Horne Well we aren't no thin blue heroes and yet we aren't no blackguards to. We're just working men and woman most remarkable like you. |
#38
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Steps for installing a transfer switch
On Wed, 23 Aug 2006 19:41:48 GMT, Thomas D. Horne, FF EMT wrote:
Ignoramus20689 wrote: On Tue, 22 Aug 2006 15:29:56 -0400, Robert Morein wrote: "Ignoramus16089" wrote in message ... I would like to install a real transfer switch like this one http://www.harborfreight.com/cpi/cta...emnumber=42163 Our house is wired for 200 amps, so this is the right size for us. Is this 200 amps at 120, or 200 amps at 240? You have 240 service, but are the amps 200 from hot to hot, or the sum of each leg to neutral? 200 amps at 240 is 48kw. I question because 48kw is vastly in excess of typical residential power requirements. I have a 240V panel, and the breaker says "200" on its handle. It is a breaker that would open if current through one of its legs exceeded 200 amps (that's a nominal rating, meaning that it would allow for momentary overcurrents to some extent). While I rarely use 43 kW of power, I do at times use a lot of power. Example. I am TIG welding in my garage, my wife is cooking a lot of food on the range, my A/C is running, etc. That could easily add up to 140 amps or more (and would be a very rare occurrence). Consider the possibility that the next size down the 100 amp unit, is the fit. The 200 amp unit is a HUGE box! It's designed to switch a 48kw hot load. Well, I would surely be happy to use a smaller and cheaper box, if it was possible, but it is my understanding that the rating of transfer switch should match the rating of the house's electrical service. We have a master disconnect. The transfer switch is located between the master disconnect and the main panel. We use a second transfer switch to disconnect optional loads, and shunt them directly to a 2nd generator. sounds interesting. i You have identified the correct switch. A two hundred ampere main breaker results in the need for a two hundred ampere transfer assembly. Be advised that a main breaker interlock kit will achieve the same result at far lower cost. What brand and model is your main breaker enclosure; such as your main distribution panel? ITE Gould. It accepts Homeline breakers for branch circuits. i |
#39
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Steps for installing a transfer switch
On 2006-08-21, Bruce in Alaska wrote:
I would install the Transfer Switch as close to the Main Panel as possible. Typically, adjacent with a 1 1/2" Dia. nipple in between What is the proper detailing for this nipple, to make it raintight? Thanks, Wayne |
#40
Posted to alt.energy.homepower,alt.home.repair,rec.crafts.metalworking
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Steps for installing a transfer switch
Ignoramus16089 wrote:
On 20 Aug 2006 14:19:31 -0700, wrote: Did you know theres a safe easier way Legal too!!! I think its cutler hammer that has a special breaker for generator connection. either the main breaker can be on OR the generator but not both. My panel is by ITE Gould. (which I think is compatible with homeline). There is a company interlockkit.com, but I do not like their product, personally. i completely code legal you install this dual pole 240 volt breaker connect your generator and your good to go. Someone posted a link recently WAY cheaper than a transfer switch, no mucking with meter or even permits if your so inclined I'm afraid you are out of luck on a transfer interlock kit as ITE/Gould is no longer manufactured. If you install a Square D feed through lug panel ahead of your existing panel and add a generator interlock kit to it you will still come out cheaper than the full sized transfer switch for the materials the labor will be similar. -- Tom Horne "This alternating current stuff is just a fad. It is much too dangerous for general use." Thomas Alva Edison |
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