Answer Posted / s c budhiraja

RCCB means residual current circuit breaker. This is used
to trip the circuit in case of earth faults to prevent
electrical shocks.Different sensitivity ratings are
30ma,100 ma, 300 ma.These are used for Domestic, commercial
and Industrial electric loads respectively.

what happen if the load connected to the induction motor is taken away? the same question for synchoronous generator in synch i think that the the exitation voltage will appear on the terminal only if so plz answer me

1525

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pls tell what are doing the three phase motor star and delta connetion with circuit diagram and control wiring .

1450

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how we can come to know that motor winding resistance which showing by DMM is right or wrong???is there any chart or something that we will compare & check???

1411

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What is meant by turbo alternators?

639

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What is primary and backup protection?

732

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Is it required to lay 2 runs of GI wires along with armoured cables from one power DB to another Power DB?

1468

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how to work droop ct in generating station

2125

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which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc?

1558

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What is the BS(British Standard)code for 11kv motor

4248

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Explain about 3 phase motor fault current calculation with examples?

2407

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After synchronization with grid what is the demand value QKVAR and how we will maintain that?

1787

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what is laser diodes?

722

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1.what is the difference between transformer differential and busbar differential.2)why we are using 2 slope for trafo diif and 1 slope for busbar diff.3)what is the purpose of metrosil and stabilizing resistor in high impedance relay circuit.4)how metrosil reduce the peak volage.5)what is the funtion of stabilizing resistor

4260

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what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?

1408

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how to calculate current and voltage in a same circuit?

1672

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