Author Topic: acceptable power spikes  (Read 3990 times)

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Offline shawn

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acceptable power spikes
« on: March 17, 2012, 04:52:00 am »
Hi guys just need A little (hand holding) from the wise :-\
My mill seems to go great in good wind runs around 40 to 50 amps and sometimes going to 70 its all folded up at this point though
But today the wind was changing direction alot and once it must have changed right at the point of a high gust working against the furling a little it reached 100 amps for around 1 second while I watched (felt like an hour)
I don't want toast for a stator has anybody else seen this? and what is an acceptable spike level ?
Its still ok just curios what others have seen.
oh its two in hand of 1.6 wire
     Shawn
 

Offline ChrisOlson

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Re: acceptable power spikes
« Reply #1 on: March 17, 2012, 01:45:34 pm »
Power spikes up to double the ampacity of the wire in the stator normally doesn't hurt anything for a few seconds at a time.  Sustained output over the ampacity of the wire will build heat that will break down the insulation on the wire and cause it to short.

There are a lot of factors that will determine the duty cycle such as heat dissipation area, ambient temperature, etc..
--
Chris