What can I do with a transformer?

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Discussion Overview

The discussion revolves around the feasibility and implications of using transformers to manipulate voltage levels in a residential electrical system, specifically the idea of reducing power consumption and electricity bills by stepping down and then stepping up voltage. The scope includes theoretical considerations and practical implications of such a setup.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant proposes installing a fused disconnect and using a 240v-to-24v step down transformer followed by a 24v-to-240v step up transformer to reduce power consumption and lower electricity bills.
  • Another participant argues that billing is based on power consumption (kWh) rather than voltage, suggesting that the proposed method would not reduce costs and would likely increase the bill due to inefficiencies in the transformers.
  • A later reply reiterates the initial proposal while providing calculations indicating that the current draw from the power company would actually be higher than anticipated, highlighting potential inefficiencies and the need for appropriate wiring.

Areas of Agreement / Disagreement

Participants express differing views on the effectiveness and practicality of the proposed transformer setup, with no consensus reached on whether it would lead to reduced electricity costs.

Contextual Notes

Participants note potential inefficiencies in transformer operation, including energy losses and increased current draw, but do not resolve the implications of these factors on overall power consumption and billing.

albertfrederi
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I was thinking that the possibility may exist that I could install a fused disconnect for my line in from the power company and hook it to a 240v-to- 24v step down transformer, use a whip to connect to another fused disconnect with a 24v-to-240v before entering the panel. my theory is that my draw from the power company would only be 24 volts and I would be stepping up the voltage myself with my own transformer thereby reducing my consumption and my bill. So am I insane?
 
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Assuming it is like the US, you are billed by power consumption (KwH) - not voltage.
At the end, you're taking the long way back to getting where you started (240). Since nothing is 100% efficient, you would have some losses along the way. Therefore, your bill would actually be higher.
 
Thank you.
 
Albertfrederi said:
I was thinking that the possibility may exist that I could install a fused disconnect for my line in from the power company and hook it to a 240v-to- 24v step down transformer, use a whip to connect to another fused disconnect with a 24v-to-240v before entering the panel. my theory is that my draw from the power company would only be 24 volts and I would be stepping up the voltage myself with my own transformer thereby reducing my consumption and my bill. So am I insane?

Your draw of 24 volts would be from the step down transformer, which would be transforming that to a draw of 240 volts. BTW, for every amp you would be pulling at 240 volts from the step up transformer, it would be pulling 10.4 amps from the step down transformer, which would in turn be pulling 1.08 amps from the power company. Expect your bill to be a bit higher. Expect some warming in the room where they are located. Be sure to invest in some really thick copper for the 24 volt wiring.
 

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