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|    sci.electronics.basics    |    Elementary questions about electronics    |    72,318 messages    |
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|    Message 71,794 of 72,318    |
|    George Herold to default    |
|    Re: how to reduce the mains voltage    |
|    13 Jul 20 08:47:27    |
      From: gherold@teachspin.com              On Monday, July 13, 2020 at 11:31:34 AM UTC-4, default wrote:       > I have an older window air conditioner that I'd like to hang on to for       > a few more years. The name plate says it is 220 VAC and since the       > power company went through and upgraded the distribution network and       > replaced HT and transformers my service which had been running 210-220       > volts is now a steady 250 volts and my bill is up ~15%.       >       > The increased consumption is tied to how much I run the AC and since       > the upgrade I've already had to replace both the compressor and fan       > motor run caps. The compressor one died a quiet death, and the fan       > cap melted and smoked. The compressor cap went out the week they       > changed the transformer and the fan cap about a month later. I put in       > higher voltage ones and the AC is back on line.       >       > I was wondering if putting in 240 VAC to 24VAC center tapped, 10 amp       > power transformer, wired to buck the voltage makes any sense?               How about a variac to lower the voltage. (kinda spendy...       might be better to invest in new AC unit.)              George H.              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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