Answer / jyothis prasad t

Due to temperature rise and fall the oil in t/f expands and
contracts.For this it absorbs & expels air .So in this
process silica gel absorbs the moisture (its the property of
silica gel to absorb moisture.at initial it has a blue
colour & after absorption it turn into cream). Moisture in
oil cause low insulation value and may trip the t/f with
bucholze relay indication.

difference btw neutral and ground?

2 Answers   ERG,

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why doesnt the back emf hold the speed of unloaded series motor?

1 Answers  

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one hp 3phase motor what generate power factor

1 Answers  

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Please tell me if you are electrical engineer,and you are appointed for the maintainance of Electrical Power plant,then which parts of the plant deal with you.Also tell how these parts/components work.

1 Answers  

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what is the operating principle of contactor(power).along with disection?

3 Answers   NASA, Tech Mahindra,

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circuit diagram of ht panel

0 Answers  

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3 Answers   Ecil,

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function of soft starter .

2 Answers  

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what is the first step of dg shycroning ?

2 Answers   ABB,

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What are the factor to be consider for CT selection in 132kV substation?

0 Answers   ABB,

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what is the purpose of starter in tube light?what is it operation .

1 Answers  

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