what is over cureent protection

3 Answers   Anil Group, MPSEB,

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what is the voltage between nutral and earth?

2 Answers  

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what is the use of the circle diagram

2 Answers  

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What is Traction? 1KVA Alternator, How much urrent taken?

0 Answers   Bhel,

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what will happen to the core losses if we perform the open ckt test on high voltage side of a transformer ?

2 Answers  

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After synchronizing the running generator with grid, the avr getting tripped and the generator breaker also oettong tripped, before tripping the avr the pf meter of generator is showing leading pf please kindly give a suggestion to rectify this problem.

2 Answers   Thermax,

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UPS battery Back time = no.of Batteries * Ah of the Battery / output KVA * 130 ? what is the 130 means ? can any one help? because all are using this formula how its came 130?

2 Answers  

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what is the difference between R Y B windings in three phase.does it differ by construction or by number of windings?Explain the difference between them.

3 Answers  

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Is there any standard guidelines/Criteria to design NGR/NGT.?

0 Answers  

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How many types of Differential protection are there? and what the special arrangement are made at the time of charging of a transformer on the Differential protection?

1 Answers  

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how much current will be drawn by 3 phase, 415v, 50 hz, 20 ton central ac

3 Answers  

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what are the types of transformers

59 Answers  

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