Answer Posted / pillay

sec 433volts of a 3 phase 2500 KVA TXformer will be
2500,000 / 1.72 / 433 = 3356 amps.

State the frequency for rc phase shift oscillator?

1055

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Please define ohm’s law for a.c (alternating current)?

1024

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A 3 phase transformer's (Y-Y) Y and B phase is (Y and B connection not broken) broken from neutral and R and Nutral connection is ok, what will be the relay tripping and why

1906

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- two pumps must work with them at the same time but if the first pump start the second pump  must delayed for some time to start  also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it

2688

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when ID fan will immediately stop through VFD what exactly cause and problem the ID fan

1394

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What are the special cables required for explosion proof wiring?

3510

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Phase control and integral control are used for?

2260

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how we calculate electrical load on a building according to area?

2729

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How to calculate the time setting for star connection in star delta starter? For example 10KW 3PH Induction motor.

2578

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How to select transmission line type (i.e. 11kv or 33kv) for new established industries

1979

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why the rotor current becomes in steady state during high slip region? please verify with equations.

1926

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please give me all the Alarm .Trip ,Safety Relays & Conditions of Diesel-generators mail me on ashokbabunhce@gmail.com

1916

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How can i get my certificate of competency as an electrical supervisor? I have complicated my B.Tech from Uttarakhand technical university this year (2012).

4466

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How to calculate the input cable rating for 10kva ups (3phase input and single phase output and also 3phase output, battery rating 65Ah)provide the formula also.thnx

2159

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Draw a SLD of DG distribution up to main LT panel?

9418

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