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Generators & Electric Motors General Discussion Antique Generators and Old Electric Motors: Questions and answers about restoring and showing old power generation systems.

Generators & Electric Motors General Discussion

In the Market for a Portable Generator


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  #21  
Old 06-17-2019, 01:40:49 PM
Vanman Vanman is offline
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Default Re: In the Market for a Portable Generator

While a completely agree with your assessment of PTCR vs Potential Relay controls, their marketing hyperbole is 100% rubbish.

The amount of ENERGY (what you pay for) consumed while a compressor starts is absolutely trivial. They start practically instantly. Likewise the amount of heat dissipated in the windings during the start is equally trivial and would be difficult to measure without highly sensitive equipment.

The advantage of the start cap is the ability to start on much lower voltage (ie a smaller generator) and to start against head pressure (more starting torque).

Keith

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Originally Posted by Railroads View Post
If looking at a hard start kit, Only the units with potential relays are worth considering. An example would be the popular 5-2-1 compressor savor https://www.cpsproducts.com/hvacr/5-...pressor-saver/ The other style like the SPP6 is worthless.

Robert
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  #22  
Old 06-18-2019, 07:22:28 AM
Railroads Railroads is offline
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Default Re: In the Market for a Portable Generator

Keith, The link is only for a picture. I didn't like the explanation given either. I didn't have time to find another site though. Can't just grab a picture these days as someone will have a damn fit. Better to just give a link.

One thing that should be noted. The 5.2.1 compressor saver only works on 240v compressors. Doesn't work on 120v models.

Robert
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