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Old 08-08-2006, 06:48 PM   #21
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John, The MOVs I work with did not explode unless they were very underated from the rating of the breaker or fuse circuit. The purpose of the MOV is not to dissipate the power of a lightning strike but to quickly limit the voltage and dissipate the power while the breaker or fuse open the circuit. Just a thought.
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Old 08-08-2006, 08:41 PM   #22
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french

that is how they work for us at the power company. i have yet to see one take a direct hit and not fragment in some way or another.

not something you want under your bed in the back of a trailer!

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Old 08-08-2006, 09:06 PM   #23
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And here I just thought it was the fireworks from the miss's kiss's

I have seen automatic variacs out. Thay are in the high end audio stores. Kind of cool, but seems a waist to me since most equiment is rated for 90 to 130 VAC that I have seen.

Wonder if those things are rated at 30 amps..................
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Old 08-08-2006, 11:10 PM   #24
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Hughes Autoformers

Due to voltage drop in rural Louisiana I purchase a Hughs Autoformer Model 430 -Yes its a new model not even on there web page you may want to wait and buy this model when available. I have noticed the current models are on sale everwhere. I got mine threw www.rvperformanceproducts.com a mobile dealer for Hughes,and yes it solved the voltage problem. Darrell
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Old 08-09-2006, 03:33 PM   #25
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You are right John, I don't know of anything that will take a direct hit of lightning and not explode. I was thinking more about voltage surge caused by the inductance in a transmission line when subjected to high variations.
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Old 09-04-2006, 11:00 PM   #26
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I believe my autoformer took a lightning hit or surge this was a new model 430 hughes. They replaced and paid postage sent new transformer before I returned mine. Also its my understanting they do not rob power from campsite neihbors and may even help from more voltage drop. This was explained that if you are runnining a 14 amp a/c on low volts it may require 16 or 17 amps to run due to low volts thus drawing more current from the park. Check with Todd Coffelt at Rv Performance Products as he's the engineer. Darrell
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Old 09-04-2006, 11:48 PM   #27
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For what its worth:
In addition to the technical details about the commercial “Hughes Autoformer,” it might be helpful to some of our forum readers to lookup (i.e., Google) the definition, operation and application of the “Autotransformer” on the Wikipedia website.
I mention this to note that the Hughes Autoformer is not exactly the same thing as an autotransformer.
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Old 09-05-2006, 01:44 AM   #28
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JSTANLEY, maybe thats why they call it an autoformer rather than an autotransformer-supposedly the 430 model has many advances over the current model I belive that to be the 2130. this model tries to achieve 117 volts unless the voltage is already avail. Darrell
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