Answer / aman kumar

Current was not circulate in transformer core magnetic flux does. But if you try to say eddy current then there was insulation b/w every strip of core plate which despite it into heat.

a bulb of 100W and anather bulb of 200W , rated supply voltage 230v.when supply voltage is reduced to 100v,which bulb will give more light? and why with calculation?

12 Answers  

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What is meant by directional power and reverse power relay ?

1 Answers   HAL,

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What is the rating of a circuit breaker needed for 300 kv load in 33KV supply line of 33/415 transformer ? Whether 800/1200 amp vaccum circuit breaker can perform for a 33 KV line in input in 415 volt in output of the transformer ?

0 Answers   Hira Group,

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In 3phase power= Root*3*v*i*cos@ What is the power in 2phase....??? and Derive it

3 Answers   Essar,

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Practical applications of series connected resistances? 

1 Answers  

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What are the reason of unbalanced secondary voltage of HT transformer 33kv/6.6kv ? Incomming voltage is balanced.33kv each secondary voltage 6.6 kv 6.4 kv 6.4 kv At no load conditions.

1 Answers  

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What the capacitor Current formula?, For 1 KVAr how amps its required? for using the KVAr for boosting the PF Design Calculation.( Eg: for 30 KVAr required how many KW?)

17 Answers   Alstom, Call Centre, EDC, HCL, Procon Engineers,

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why the earth terminal of the three pin plug we are using bigger than the others?

2 Answers  

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exolain the star delta connection

0 Answers   Toyota,

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what id a dry type transformers and its function ?

0 Answers   Wipro,

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why single core HT cable need only one side earthing?

2 Answers  

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how long will take to burst/damage for a CT when secondary in open condition? Experienced: During switchgear testing(Primary current injection test) some of the CT are in open condition, but nothing happen's why?

1 Answers  

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