Answer / ragu

WATER AND AIR CONDUCTS HEAT BY PROCESS CALLED CONDUCTION
THAT IS HEATING THE NEARER MOLECULES AND SO ON. BUT VACCUM
CONDUCT BY PROCESS CALLED RADIATION THAT IS FORM OF WAVES
EG. HEAT FROM SUN TO EARTH IN VACCUM SPACE

What is difference between wire and cable ?

3 Answers   Havells,

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I HAVE A 1 MVA TRANSFORMER, I WANT TO KNOW THE FAULT LEVEL OF THE SYSTEM ( WHAT IS FAULT LEVEL PLEASE EXPLAIN WITH EXAMPLE)

5 Answers   Alstom,

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What are the starting currents of different motors and also what are the running currents, and idle currents?

6 Answers  

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What is the difference between voltage and emf ?

3 Answers   DRDO,

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Sir,In our company there are 3 caterpillar make(capacity:(1) 3.3KV,2.5MW(2)3.3KV,2.5MW & (3)3.3KV,1.9MW) & 1 deutz make (capacity:11KV,3.8MW)gas engines utilised,all are running in paralell. There are three transformer utilised,(1) 6.25MVA,3.3KV/22KV,Impedence voltage:6.7% used for two generator,both are 2.5MW(2)5.5MVA,3.3KV/22KV,Impedence voltage:7.2% used for one generator of 2.5MW & (3) 5.5MVA,11KV/22KV,Impedence voltage:7.8% used for one generator of 2.5MW.all generator breakers capacity of 1250Amps. Sir,I want the details of fault level calculation of generator,transformer individually & for whole system. If you require any information from me.feel free for contact me sir.pl.send the answer of my question as the earliest as possible.

0 Answers   Piramal Healthcare,

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Why Lead-Acid cell voltage is 2.1 volt, why we can not chenged it cell voltage by using extra row-material, only incries its AH.

1 Answers  

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what is meant by moulded case circuit breaker ?

0 Answers   ABB,

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why a pure inductive circuit has zero power output?

8 Answers  

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what will happen if frequency is below 50 hz?

0 Answers   Student,

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I am going to appear for the RRB Chennai Section Engineer online exam. Please send me the question papers from 2001 to date to my mail id: vsujith_rajan@yahoo.co.in

3 Answers   RRB,

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how to select the rating of neutral ct with reference to transformer secondary current(in power transformer,stepdown tansformer,for example2000kva,11kv/415volt

2 Answers   ASD Lab,

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What is the function of interposing current transformer?

0 Answers  

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