dielectric strength of vacuum is greater than SF6 but for 132Kv uses sf6 breaker & for 33kV uses vaccum breaker why such a contradiction?

2 Answers   MSETCL Maharashtra State Electricity Transmission Co Ltd,

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What will be cross section area of copper conductor for carry 2000 amps & 2500 amps....sq.mm.?/

3 Answers  

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What is the problem, if a circuit breaker is not closing.

4 Answers   KSEB, L&T, Siemens,

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What is the working principle of MIG welding? and its out put Voltage?

0 Answers   L&T,

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what is the safety of ACB & VCB and how can this work and how can the service the ACB & VCB parts name with picture

21 Answers   ABB, ACB, Bharti, Claris Lifesciences, Honda, L&T, RotoPower, Sterling Wilson, Wipro,

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How Humming noise generated in starter motor which was used the start the engine in a vehicle/car/Truck?.Moreover Starter motor was operated in DC power supply. Can you guys clarify ?

2 Answers  

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why neutral is required in electrical system

3 Answers   Bhel,

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why we use 110vac in overhead crains? why not 220v, 24v

3 Answers   SOFT,

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what is iron loss?

4 Answers   RRB,

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WHY CAN WE NOT CHAGE SPEED OF SYNCHRONOUS MOTOR...............................JUSTIFY

2 Answers   ISMT,

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do we need NGR panel when the output of the genset is LV but after that it is step up to 22 kv. condition is 12 genset 400v are operating in parallel.

1 Answers  

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Tan delta point in transformer to be earth or not?

1 Answers   DMRC,

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