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.

WHY THE COLOR OF OUTDOOR TRANSFORMER IS BLUE ONLY???

0 Answers  

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before synchronizing an alternator,power factor is leading ,why?

0 Answers   CUMI,

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the voltage per turn of a primary winding of a transformer is the same as the voltage per turn of the secondary winding of the transformer. why?

8 Answers  

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WHAT R THE SAFETIES IN A HIGH TENSION PANEL N LOW TENSION PANEL. ALSO WAT SAFETIES R THERE IN A 200 KVA TRANSFORMER?

0 Answers  

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how to calculate the slowness and fastness of energy meter if we have different kw load for example (0.746 kw and meter rev constant 400 and we calculate the 2 rev in 30 sec) please explain the formula thanks

1 Answers   WAPDA Water and Power Development Authority,

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i want to do a project on PLC.... please give me an idea.....

1 Answers  

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What is power relay?

0 Answers  

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what is XLPE type cable

8 Answers   Areva,

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what is the ciruit diagram of transformer vector grup test?

4 Answers   Green Power,

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what is demagnetising effect & crossmagnetising effect and how it is related to electrical system?is there any more effects are available or only these two??

1 Answers   Telco,

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why core is useful for a transformer ?and also in its operation ?

0 Answers  

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can any one tell me about the Extra low voltage systems?From where we give supply to these type of systems??

0 Answers   MCB,

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