For some transformers we are using solid neutral earthing while some others we are using resistance earthing why ?

0 Answers  

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how we can classify the circuit braker???????

1 Answers  

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What is the Diff. btw Manule Pull Station & Manule Abort Station Switches used in FM200 System??

0 Answers   Emerson,

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can any one tell me the formula to select the thickness of wire selection according to ampere rating

2 Answers  

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How to select a contactor? How many types of contactors are available

0 Answers   TCS,

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On what principle reluctance motors work?

1 Answers  

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What is the Gap Should maintain for HT cables crossing of LT Cable?

2 Answers  

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what is the difference between diode and zener diode?

21 Answers  

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What are the Formula of computing Back up Time of 500kVA UPS with 4 Battery Banks, each bank composed of 43 pcs of Batteries 12V150Ah. How to compute the Back up Time of UPS? We have also 3X500kVA UPS running in Parallel same composition as I write above.

0 Answers  

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what's the requirement of Dy11d0 connection of 3 phase transformer?what's use of it?

0 Answers   Thermal Systems,

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What happens if a +vely charged particle is placed in the centre of a room and assume that the north side wall is having magnetised with north polarity and south side wall is magnetised with south polarity. In which direction the particle will move

5 Answers   BSNL,

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why sometime we get electrical shock while touching the ballon of dish tv connection ? which we should not get.

0 Answers  

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