On 1/27/2012 11:53 AM, wrote:
Most people know that dropping a cord or appliance that is plugged into
an outlet into a bathtub filled with water will electrocute the person
in the tub. Yet, you can drop a low voltage item such as a flashlight
with batteries in the tub and no one will be hurt. Even a set up jumper
cables connected to a car battery would not likely do anything, or might
just tingle a little (never tried this, but I've handled plenty battery
cables while standing on wet soil in wet shoes and never felt a thing).

Not that I'm planning to test this, but what would happen if a large
capacitor, charged with 200 volts or more was tossed into a filled
bathtub while someone was in the tub? (By large capacitor, I dont mean
the size, but rather, I mean a large capacity, such as 500 MF or one
Farad or more....).

Well there is one hell of a difference between 500mf and 1 farad.
Although 1 Farad 5 volt caps have become quite small, one rated at 200
volts might bludgeon them to death if it hits them in the head, charged
or not.


I see no reason this would ever occur, but I'm just curious.

[NOTE: This could be DC or AC]. DC capacitors are used in electronics,
while the AC type are motor start capacitors.

Lots of AC rated caps are used in electronics.

In ,
typed:
On Fri, 27 Jan 2012 14:25:25 -0500, Tony Miklos
wrote:

On 1/27/2012 11:53 AM, wrote:
Most people know that dropping a cord or appliance that
is plugged into an outlet into a bathtub filled with
water will electrocute the person in the tub. Yet, you
can drop a low voltage item such as a flashlight with
batteries in the tub and no one will be hurt. Even a
set up jumper cables connected to a car battery would
not likely do anything, or might just tingle a little
(never tried this, but I've handled plenty battery
cables while standing on wet soil in wet shoes and
never felt a thing).

Not that I'm planning to test this, but what would
happen if a large capacitor, charged with 200 volts or
more was tossed into a filled bathtub while someone was
in the tub? (By large capacitor, I dont mean the size,
but rather, I mean a large capacity, such as 500 MF or
one Farad or more....).

Well there is one hell of a difference between 500mf and
1 farad. Although 1 Farad 5 volt caps have become quite
small, one rated at 200 volts might bludgeon them to
death if it hits them in the head, charged or not.


I see no reason this would ever occur, but I'm just
curious.

[NOTE: This could be DC or AC]. DC capacitors are used
in electronics, while the AC type are motor start
capacitors.

Lots of AC rated caps are used in electronics.

I can only think of two uses.

1. Speaker filter caps (in crossovers)
2. Line caps which are usually very small, such as .05mf.
They go across the power line for voltage surges and
spikes.

What are the other uses?

If you're into analog engineering designs, there are enough to write entire
books on them. Suggest you go research them; not worth trying to make up a
list.

HTH,

Twayne`

On 1/27/2012 6:54 PM, wrote:
On Fri, 27 Jan 2012 14:25:25 -0500, Tony
wrote:

On 1/27/2012 11:53 AM, wrote:
Most people know that dropping a cord or appliance that is plugged into
an outlet into a bathtub filled with water will electrocute the person
in the tub. Yet, you can drop a low voltage item such as a flashlight
with batteries in the tub and no one will be hurt. Even a set up jumper
cables connected to a car battery would not likely do anything, or might
just tingle a little (never tried this, but I've handled plenty battery
cables while standing on wet soil in wet shoes and never felt a thing).

Not that I'm planning to test this, but what would happen if a large
capacitor, charged with 200 volts or more was tossed into a filled
bathtub while someone was in the tub? (By large capacitor, I dont mean
the size, but rather, I mean a large capacity, such as 500 MF or one
Farad or more....).

Well there is one hell of a difference between 500mf and 1 farad.
Although 1 Farad 5 volt caps have become quite small, one rated at 200
volts might bludgeon them to death if it hits them in the head, charged
or not.


I see no reason this would ever occur, but I'm just curious.

[NOTE: This could be DC or AC]. DC capacitors are used in electronics,
while the AC type are motor start capacitors.

Lots of AC rated caps are used in electronics.

I can only think of two uses.

1. Speaker filter caps (in crossovers)
2. Line caps which are usually very small, such as .05mf. They go across
the power line for voltage surges and spikes.

What are the other uses?


Oh millions of amplifiers have signal caps, video monitors, telephones,
wireless doorbells, wireless anything...

wrote:
On Fri, 27 Jan 2012 14:25:25 -0500, Tony Miklos
wrote:

On 1/27/2012 11:53 AM, wrote:
Most people know that dropping a cord or appliance that is plugged into
an outlet into a bathtub filled with water will electrocute the person
in the tub. Yet, you can drop a low voltage item such as a flashlight
with batteries in the tub and no one will be hurt. Even a set up jumper
cables connected to a car battery would not likely do anything, or might
just tingle a little (never tried this, but I've handled plenty battery
cables while standing on wet soil in wet shoes and never felt a thing).

Not that I'm planning to test this, but what would happen if a large
capacitor, charged with 200 volts or more was tossed into a filled
bathtub while someone was in the tub? (By large capacitor, I dont mean
the size, but rather, I mean a large capacity, such as 500 MF or one
Farad or more....).

Well there is one hell of a difference between 500mf and 1 farad.
Although 1 Farad 5 volt caps have become quite small, one rated at 200
volts might bludgeon them to death if it hits them in the head, charged
or not.


I see no reason this would ever occur, but I'm just curious.

[NOTE: This could be DC or AC]. DC capacitors are used in electronics,
while the AC type are motor start capacitors.

Lots of AC rated caps are used in electronics.

I can only think of two uses.

1. Speaker filter caps (in crossovers)
2. Line caps which are usually very small, such as .05mf. They go across
the power line for voltage surges and spikes.

What are the other uses?

The most common application for a capacitor is to pass ac while blocking
dc. Sometimes a polarized cap is used to pass ac, with a bias circuit to
keep the polarized plates set. Other larger non polarized caps in the
hundreds of mf in ac line and motor application. They typically have a 600
volt rating.

Greg

gregz wrote in

g:

wrote:
On Fri, 27 Jan 2012 14:25:25 -0500, Tony Miklos
wrote:

On 1/27/2012 11:53 AM, wrote:
Most people know that dropping a cord or appliance that is plugged
into an outlet into a bathtub filled with water will electrocute
the person in the tub. Yet, you can drop a low voltage item such
as a flashlight with batteries in the tub and no one will be hurt.
Even a set up jumper cables connected to a car battery would not
likely do anything, or might just tingle a little (never tried
this, but I've handled plenty battery cables while standing on wet
soil in wet shoes and never felt a thing).

Not that I'm planning to test this, but what would happen if a
large capacitor, charged with 200 volts or more was tossed into a
filled bathtub while someone was in the tub? (By large capacitor,
I dont mean the size, but rather, I mean a large capacity, such as
500 MF or one Farad or more....).

Well there is one hell of a difference between 500mf and 1 farad.

500mF (mF = millifarad)is one half of a farad.
or do you mean uf;microfarad? milliF caps are rare.

OTOH,"MF",capital M,is MegaFarad.
M = mega,m = milli,mmF = microfarads(uF) in the old notation.

Although 1 Farad 5 volt caps have become quite small, one rated at
200 volts might bludgeon them to death if it hits them in the head,
charged or not.


I see no reason this would ever occur, but I'm just curious.

[NOTE: This could be DC or AC]. DC capacitors are used in
electronics, while the AC type are motor start capacitors.

Lots of AC rated caps are used in electronics.

there are polarized electrtolytics(leads marked +/-) and non-polarized
caps(electrolytics are marked NP,non-electrolytic caps are not marked).
both are used in all sorts of electronics.
then there are caps that can handle higher currents,those are the sort used
in motor circuits.

I can only think of two uses.

1. Speaker filter caps (in crossovers)
2. Line caps which are usually very small, such as .05mf. They go
across the power line for voltage surges and spikes.

What are the other uses?

The most common application for a capacitor is to pass ac while
blocking dc. Sometimes a polarized cap is used to pass ac, with a bias
circuit to keep the polarized plates set. Other larger non polarized
caps in the hundreds of mf in ac line and motor application. They
typically have a 600 volt rating.

Greg




--
Jim Yanik
jyanik
at
localnet
dot com

On Jan 27, 5:54*pm, wrote:
On Fri, 27 Jan 2012 14:25:25 -0500, Tony Miklos
wrote:









On 1/27/2012 11:53 AM, wrote:
Most people know that dropping a cord or appliance that is plugged into
an outlet into a bathtub filled with water will electrocute the person
in the tub. *Yet, you can drop a low voltage item such as a flashlight
with batteries in the tub and no one will be hurt. *Even a set up jumper
cables connected to a car battery would not likely do anything, or might
just tingle a little (never tried this, but I've handled plenty battery
cables while standing on wet soil in wet shoes and never felt a thing)..

Not that I'm planning to test this, but what would happen if a large
capacitor, charged with 200 volts or more was tossed into a filled
bathtub while someone was in the tub? *(By large capacitor, I dont mean
the size, but rather, I mean a large capacity, such as 500 MF or one
Farad or more....).

Well there is one hell of a difference between 500mf and 1 farad.
Although 1 Farad 5 volt caps have become quite small, one rated at 200
volts might bludgeon them to death if it hits them in the head, charged
or not.

I see no reason this would ever occur, but I'm just curious.

[NOTE: This could be DC or AC]. DC capacitors are used in electronics,
while the AC type are motor start capacitors.

Lots of AC rated caps are used in electronics.

I can only think of two uses.

1. Speaker filter caps (in crossovers)
2. Line caps which are usually very small, such as .05mf. They go across
the power line for voltage surges and spikes.

What are the other uses?

In manufacturing where many large inductors (motors) are used, the
electric grid has to use huge capacitors to put the current back in
phase.

On Jan 27, 11:54*pm, wrote:
On Fri, 27 Jan 2012 14:25:25 -0500, Tony Miklos
wrote:





On 1/27/2012 11:53 AM, wrote:
Most people know that dropping a cord or appliance that is plugged into
an outlet into a bathtub filled with water will electrocute the person
in the tub. *Yet, you can drop a low voltage item such as a flashlight
with batteries in the tub and no one will be hurt. *Even a set up jumper
cables connected to a car battery would not likely do anything, or might
just tingle a little (never tried this, but I've handled plenty battery
cables while standing on wet soil in wet shoes and never felt a thing)..

Not that I'm planning to test this, but what would happen if a large
capacitor, charged with 200 volts or more was tossed into a filled
bathtub while someone was in the tub? *(By large capacitor, I dont mean
the size, but rather, I mean a large capacity, such as 500 MF or one
Farad or more....).

Well there is one hell of a difference between 500mf and 1 farad.
Although 1 Farad 5 volt caps have become quite small, one rated at 200
volts might bludgeon them to death if it hits them in the head, charged
or not.

I see no reason this would ever occur, but I'm just curious.

[NOTE: This could be DC or AC]. DC capacitors are used in electronics,
while the AC type are motor start capacitors.

Lots of AC rated caps are used in electronics.

I can only think of two uses.

1. Speaker filter caps (in crossovers)
2. Line caps which are usually very small, such as .05mf. They go across
the power line for voltage surges and spikes.

What are the other uses?- Hide quoted text -

- Show quoted text -

Electrolytic capacitors are/were widely usedfor smoothing DC after
rectifiers.
http://en.wikipedia.org/wiki/Electrolytic_capacitor

On Jan 28, 4:14*am, Bob_Villa wrote:
On Jan 27, 5:54*pm, wrote:





On Fri, 27 Jan 2012 14:25:25 -0500, Tony Miklos
wrote:

On 1/27/2012 11:53 AM, wrote:
Most people know that dropping a cord or appliance that is plugged into
an outlet into a bathtub filled with water will electrocute the person
in the tub. *Yet, you can drop a low voltage item such as a flashlight
with batteries in the tub and no one will be hurt. *Even a set up jumper
cables connected to a car battery would not likely do anything, or might
just tingle a little (never tried this, but I've handled plenty battery
cables while standing on wet soil in wet shoes and never felt a thing).

Not that I'm planning to test this, but what would happen if a large
capacitor, charged with 200 volts or more was tossed into a filled
bathtub while someone was in the tub? *(By large capacitor, I dont mean
the size, but rather, I mean a large capacity, such as 500 MF or one
Farad or more....).

Well there is one hell of a difference between 500mf and 1 farad.
Although 1 Farad 5 volt caps have become quite small, one rated at 200
volts might bludgeon them to death if it hits them in the head, charged
or not.

I see no reason this would ever occur, but I'm just curious.

[NOTE: This could be DC or AC]. DC capacitors are used in electronics,
while the AC type are motor start capacitors.

Lots of AC rated caps are used in electronics.

I can only think of two uses.

1. Speaker filter caps (in crossovers)
2. Line caps which are usually very small, such as .05mf. They go across
the power line for voltage surges and spikes.

What are the other uses?

In manufacturing where many large inductors (motors) are used, the
electric grid has to use huge capacitors to put the current back in
phase.- Hide quoted text -

- Show quoted text -

There's probably a power factor correction capacitor in your
traditional fluoresecent light.

On Jan 28, 4:08*am, wrote:
On Fri, 27 Jan 2012 20:14:39 -0800 (PST), Bob_Villa

wrote:
In manufacturing where many large inductors (motors) are used, the
electric grid has to use huge capacitors to put the current back in
phase.

I have noticed some things on power poles that look like pole
transformers without any secondaries and they are smaller. *The HV line
just enters and exists then midway to a farm or industrial complex.
Maybe those are the caps. *I never understood their purpose.

Besides industry, large farms have lots of power hungry motors. *I just
operate a small farm, but even I have hay elevators and augers and other
devices with fairly large 110 or 220 volt motors.

Also, in reply to others speaking in electronics terms I am familiar
with non polarized as well as electrolytic caps. *I worked on a lot of
electronics when I was a kid. *Mostly tube stuff back then, and back
then, mf meant micro-farad, and mmf meant miro-micro-farad. *Oddly
enough they were also called condensors in those days. *I still fart
around with a few home repairs of electronic stuff, but these days
finding parts is a challenge, if not impossible. *Especially ICs. *That
takes the fun out of it.

Power grid capacitor bank: http://www.dreamstime.com/royalty-fr...nk-image685808

On 1/28/2012 4:08 AM, wrote:

I have noticed some things on power poles that look like pole
transformers without any secondaries and they are smaller. The HV line
just enters and exists then midway to a farm or industrial complex.
Maybe those are the caps. I never understood their purpose.


If they are wired in series on the distribution wiring they are
sectionalizers.

http://en.wikipedia.org/wiki/Sectionalizer
is a not-great description.

They take the place of a fuse, and are always downstream from a
recloser. Reclosers are also wired in series, but are much larger.

PF correction caps are wired phase-to-phase.

--
bud--