Answer / karthik ccel

The PS class is protection class CT. This PS class C.T is
mostly used for the differential protection for
transformers,motors etc...

Answer / hemang

It is a protection class.

Answer / prakash gokhale

CL5P 10

how do you measure earth leakages in 3phase wires?

2 Answers  

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Why do we perform an open-circuit test and short-circuit test on the transformer?

0 Answers  

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1 unit or 1 kwh means how much kva

7 Answers   TATA,

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aternator every parts and its working

0 Answers   adag,

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what is "PE" earthing? and what do u know abt 16mm cable?

1 Answers  

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what is the difference between synchronization and paralleling?

13 Answers   BARC,

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Can a 50-Hz designed transformer be used at 60-Hz system? Is the same remains true, when a 60-Hz designed transformer be used at 50-Hz system? Consider only frequency variation. The voltage remains as rated value in all cases. Justify the answer.

2 Answers  

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What is Plank's Law?

0 Answers   Godrej,

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Which of the following are the important limitations of rod gap surge arresters? 1. They are not capable of selling off power frequency follow up current. 2. After a discharge, the rods are destroyed completely. 3. Performance is affected by climatic conditions. Use the following codes for selecting the correct answer. Codes: (a)1, 2 and 3 (b)1 and 2 (c)2 and 3 (d)1 and 3

1 Answers  

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i have a roll dia aprox.43 inches and gear box ratio is 14.3.so my question is how was decide the kw rating of motor.

1 Answers  

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raleigh method

0 Answers  

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Which one is easy to control AC or DC Machine?

2 Answers   BARC,

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