why the desirable efficiency for a motor is 60%, but in case of transformer, it is above 90%?

1 Answers  

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How will you utilise electrical power? You can start from the generating station.

0 Answers  

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How we select the cable rating

1 Answers   BTM, Videocon,

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How the frame size of a flange mounted AC induction motor is calculated?

0 Answers   APCPDCL,

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What is the function of a pressure Switch in a Substation?

2 Answers  

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why we use choke in tubelights nad other lighting fixer

1 Answers  

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How a Universal motor works in Both A.C and D.C? What is the constructional difference with other single phase motors?

1 Answers  

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How can we reduce the reactive power consumption of your 12.5 MVA power transformer.

4 Answers  

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What is The Resistance Formula

0 Answers   TCS,

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We use ungrounded DC system (220V/110V) for control and protection system in substations etc. Suppose we have long 2 core DC cables running from our DCDB in control room to the load (length of around 2 to 3 km). Do we need to protect these long DC cables from earth leakages or not? If yes how?

5 Answers   Siemens,

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tell me working of air circuit braker.

2 Answers  

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why transformer calling in VA rating

6 Answers  

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