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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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How large can the capacitance be in a DIY parallel AC filter?Unfortunately, a person can touch the metal poles on the male AC power plug. That causes safety issue, I think.
Suppose somebody unplugs parallel filter at the moment when the capacitor inside is at peak voltage: 120 X 1.414 volts = approx 170 Volts. (240 X 1.414 = approx 340 Volts in the UK)
If the capacitance is large, the capacitor holds large amount of electrical charge at that not-so-safe voltage. The energy stored in the capacitor is (1/2) * C * V^2.
If somebody touches the metal on the unplugged male power plug of that parallel AC filter, then the large amount of electrical energy is dissipated through his/her finger. Isn't it dangerous?
Is there any circuit which disconnects the capacitors at the moment it detects unplugging of the power cord from the wall outlet?
Edits: 11/28/14 11/28/14
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Topic - How large can the capacitance be in parallel AC filter? - dave789 18:48:56 11/28/14 (18)
- check out - unclestu 00:28:10 12/09/14 (10)
- could not find the web site - dave789 16:33:17 12/13/14 (0)
- RE: check out - beautox 00:48:06 12/09/14 (8)
- RE: check out - dave789 16:31:38 12/13/14 (3)
- RE: check out - beautox 17:22:03 12/13/14 (2)
- RE: check out - dave789 18:35:29 12/13/14 (1)
- RE: check out - beautox 20:00:00 12/13/14 (0)
- RE: check out - unclestu 05:56:04 12/09/14 (3)
- RE: check out - beautox 13:09:30 12/09/14 (1)
- RE: check out - unclestu 18:35:09 12/09/14 (0)
- RE: check out - beautox 13:04:41 12/09/14 (0)
- RE: How large can the capacitance be in parallel AC filter? - Jon Risch 21:32:56 11/30/14 (2)
- danger depends on where the caps are (?) - Tweaker456 14:20:54 12/15/14 (0)
- Errata - djk 23:29:45 12/01/14 (0)
- The need to bleed - Tweekeng 11:24:59 11/30/14 (0)
- Going the wrong way aren't you? - Uncle Mike 05:47:44 11/29/14 (2)
- RE: Going the wrong way aren't you? - dave789 08:23:16 11/29/14 (1)
- yea..ok...nt - Uncle Mike 13:11:03 11/29/14 (0)
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