What value of resistance required between Saftey earth and instrunment earth , maximum and minimum values required
Answer / muthu
It's varying asper soil resistance but my answer is 100 to 400 ohm
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In a 3Ph induction motor(old) 6 wires came out from terminal & not mentioned u1,v1,w1,u2,v2 & w2. how can find out the terminals? how can connect to star delta starter??
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do you know measure the earth resistance?explain
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