Answer Posted / sarath nair

Disconnect motor terminals and check the winding resistance
with a multimeter at the two ends of each coil(U-U1,V-V1,W-
W1) and find the minimum acceptable value by using the
formula (Rated voltage (V)/1000+1)

If a surge divertor is required to be protected by 32 amp C Curve Circuit breaker does this limit the amount of protection from surges that you will acheive

1743

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State thevenin’s theorem?

1031

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What is genrally the % Impedance of a Dg set? How can we calculate Earthing conductor size for a DG set?

3962

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pls tel me the electric train traction motors name plate details like rpm,torue,voltage,amps,watts..ect..

1997

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how we can explain arc heatng?

1861

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HOW CAN YOU CALCULATE PRACTICAL EFFICIENCY OF A ASYNCHRONOUS INDUCTIONMOTOR OF 7.5KW,& MOTOR IS RUNNING WITH AVOLTAGE OF 410 VOLTS,& TAKING CURENT OF 13 AMPS

1821

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Does outdoor isolator loose connection cause short circuit current in that circuit? if yes then how ??

1658

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if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .

1902

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The power factor of the fixed load is 0.8, now the p.f is varying from 0.8 to 0.5.

1930

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Diagram and details of polarity test for Current Transformer 11kv 400/200/100/1A

2980

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if negative of DC supply used and positive is grounded through EGB, and if ELCB used in the system then is it sense the positive volatge and get tripped is it possible?

1777

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what is cathodic protaction?

1946

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What is making & breaking current ???

1455

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how to CHECK CT AND PT AT THE FAULT OCCUR IN GENERATOR RELAY PANEL .

2234

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To make a basic instrumentation amplifier, it takes A One op-amp with a certain feedback arrangement B Two op-amp and seven resistors C Three op-amps and seven capacitors D Three op-amps and seven resistors

1913

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