Answer / santhosh (sggi)

Insulation failure of machine coil due to over load,
It can be prevented by using better cooling arrangements
and overloads.

Answer / chand

most common reason is failure of coil insulation due to heat and ageing factor.

What is expention fastener (Fan)

0 Answers  

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can SMPS work in DC supply ?

10 Answers   HCL, IBM, Reliance,

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Why only three phase power generation are load are used

2 Answers   BARC,

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the max. power will be transferred if …… a) sending end vol. is high b) receiving end v is high c)…….. d) corona loss is least

2 Answers   Engineers India Limited,

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HOW TO SIZE THE TRANSFORMER OR WHAT ARE THE STEPS INVOLVED IN FINDING THE SIZE OF THE TRANSFORMER FOR GIVEN LOAD SAY 2000KW ?

1 Answers  

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How much resistance between neutral earthing and body earthing of Power transformer?

1 Answers  

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If the supply voltage is same (say 440V) whether a system designed for 60 Hz frequency will work with 50 Hz frequency or not , if so pl. give clarification.

11 Answers   ABB,

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I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

0 Answers  

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What are the advantages of stationary armature and rotating field system?

0 Answers  

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What is transister define the transister ammiter ,base, colector.

0 Answers  

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what is the meaning of spur line?

1 Answers  

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why we use 3 phase in our country?..why no 4,5 or 2??

2 Answers   Siemens,

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