what will be the efficiency off x'mer during no load test and during short circuit test

1 Answers   GPSC Gujarat Public Service Commission,

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what is busbar. how many types of starter.what appartus will be used to improve voltage.what is the function of starter.what is b.h.p.what material is used for earthing.

1 Answers  

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what is the funda of earthing? Explain breifly about earthing?

5 Answers   IOCL,

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What are the different types of VVVF Drive ?

2 Answers  

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what is on line transformer and off line transformer.

3 Answers   Cisco, HP, ICC,

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heat can flow from a body at low temperature to a body at higher temperature only when ........ is supplied from an external source A). Voltage B). Current C). work D). Mass

7 Answers   BMRCL,

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How can i calculate heat load ?

3 Answers   DSSR, NSN,

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why do you add the load short circuit impedance when considering short circuit amperage. It seems that you should only consider supply. If you need to consider loads and you don't know what loads are to be added , what would be a good sub-transient reactance rating for the loads?

0 Answers  

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what is electric current

17 Answers  

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how many typetesting of transformers?

8 Answers   ONGC,

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What is the technical reason for adopting color coding of three phase system as RYB.

11 Answers   ABB, ERDA,

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What is Procedure the procedure to select CT's & PT's in 66kV and above substation

1 Answers  

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