Why one side of secondary of transformer is earthed, to supply single conductor of electric traction system?

1 Answers  

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what type of battery used for starting D.G?state its function?

2 Answers  

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difine electrical ballast in HPSVL

0 Answers  

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Explain the following and how these are working with PLC Unit 1 I/O Module Card 2 Adaptor Card 3 Ribbon Adaptor 4 I/O bus 5 I/O Devices

0 Answers   Mayur,

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how to select the mpcbs and contactor for 3 phase 30 hp star delta motors.for plc control.and tell me the calaculation for future use.

0 Answers  

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What are the advantages of star-delta starter with induction motor?

7 Answers   Merchant Navy, Naval Academy, Samundra Institute of Maritime Studies, YMCA,

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what is brushless generator?

2 Answers   Jk Tyres,

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what is the power rating of CPU, CRT type moniter, LCD type moniter,scanner Approx.

0 Answers   HAL,

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diff. between star, delta connection?

4 Answers  

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what are the protection relays for trasformer

3 Answers  

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what is exiter winding,stator winding,avr?how it will work?

1 Answers   Siemens,

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What happen if in three phase 440 v , when you check voltage by testor it glows except one phase and in the same time when you check by multimeter it shows 440 v in any two phase.what will be the reason...

1 Answers   Greatship,

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