Quote:
Originally Posted by kalidasbala
Btw, is there a formula to calculate the precharge resistor value? Also can I use an automotive relay (12v).
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The precharge resistor value is a function of capacitance, time and voltage.
I dont have a formula though. Or... i found
this
Use a relay that can handle the voltage. I dont think a 12v relay will do the job
Quote:
Originally Posted by kalidasbala
You are using 25v as HV and running a 208Vac 3PH motor? What kind of batteries are you using?
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I was using a:
Then i used 3 in series, making it 75 volts.
I use them only for testing, for my convenience...