Answer Posted / navin jain

breather is used to intake fresh air in the transformer tank for cooling purpose. The air is contaminated with moisture which may enter the tank and forms sludged with the insulation papers inside the tank and prevent free circulation of oil into the tank there by raising the temperature inside the tank. Therefore silica gels are provided in the breathers which absorbs the moisture content from the air.

The simple way of finding the leakage quantity and % in compressed air distribution system

1666

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What it the purpose of parallel phasing transfomers??

1987

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What are test values for an 63 KVA and 100 Kva Distribution Transformers for the following typical tests 1)Magnetic balance 2)Short circuit test 3)Open Circuit test 4)Vector group confirmation test .please give me the standard values for all the above tests.

2713

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What is negative sequence over voltage element?

1968

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WHAT IS THE FUNCTION OF SHORT CIRCUIT MAINTENANCE CT

2440

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What types of high speed CMOS circuits have you designed?

2131

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2144

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how to Select its CORE in electrical cables based on its applications? or Application of various types of electrical cable based on it CORE?

3255

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how to test power transformer.YNd11

1549

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2478

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1924

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i have total 8 dg sets for synchronizing and 2 buscoupler,1 sectoin dg no 1,2,3,and 2 sectoin dg no 4,5,6,and last section dg no 7,8 ....if buscupler no 1 and 2 is off mode ..than dg no 1,2,3,will synchroniz of another dg sets?

1810

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please give some hindalco placement papers for written exam

1807

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What is the differentional relay...what is the work of this in power Tx. how it is works..

1920

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how to calculte capacitor range for single phase induction motors??pls tel

2122

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