what you mean by vector group of a 3 ph transformer

1 Answers  

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two transformers of the same type, using the same grade of iron and conducting material, are designed to work at same flux and current densities, but the linear dimension of one are two times of the other in all respects. The ration of kVA of the two transformer closely equal to................? options: 16, 8, 4, 2

2 Answers   Vizag Steel,

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how does damper winding produces torque in synchronous motor?

1 Answers  

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What are various modes for Mechanical interlocking of breakers (for both MCCBs & ACBs)

1 Answers  

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can we find the inductance of a induction motor?

0 Answers   Trident,

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Why we use 4-20 mA Analog signal for the PLC input? Why not 0-20 mA? Why not 5-25 mA?

0 Answers  

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The corona effect is more in a) summer b) winter c) dry weather d) humidity weather

10 Answers   CPCL,

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I want to calculate how much capacitor we connect to maintain the unity power factor? Is there any formula? Pls give me the answer

0 Answers  

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what do you mean by the "bay" in a switchyard? how to determine exact number of bays in a substation?

8 Answers   Essar, L&T,

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WHICH TYPE OF TRANSFORMER USED IN SWITCHYARD IN POWER PLANT?

15 Answers   GE, Lanco, NTPC,

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Why charcoal and salt add in earthing pit.

6 Answers   Garware, NTPC, Sterling Wilson,

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What is working principal of V.C.B., O.C.B., A.C.B & Over load relay?

4 Answers   Unitech,

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