Which material is used for the core of a transformer and why?

0 Answers  

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how does a liquid starter reduce the starting currents?

0 Answers  

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in a plug point why the hole size at the top is large?

9 Answers   Bhel, TCS,

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What happens with squirrel induction machines if the ends of rotor conductors are kept open? Explain

3 Answers  

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why transformer rating in KVA or MVA instead of KW n MW??

3 Answers  

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what is the difference between switch yard to residential area.and how much required it.

0 Answers   GVK,

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WHAT IS SITTING AMPS IN OVER-LOAD RELAY FOR 1PH OR 3PH MOTORS?IF ITS NAME PLATE GIVEN MAX AMPS 10AMPS?

0 Answers  

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operating Lt & HT voltages used in India?

8 Answers   Essar,

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how one can know the charging time, discharging time of a 12 VDC battery ? If i have a battery of 12 VDC , 4.0 AH , how long will it take to charge from a charger (power supply) of input 220 V , Output 15 V and output current of 3000 mA and how long will it take to discharge whether using or not ? How much backup will it give ?

1 Answers   ONGC,

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how does circuit breaker works

1 Answers  

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Why reverse power relay is used?

12 Answers  

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Define the term Capacitance and Inductance?

0 Answers  

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