Answer / suryanaik02@gmail.com

Dry and clean oil gives BDV results, better than the oil with moisture content and other conducting impurities. Minimum breakdown voltage of transformer oil or dielectric strength of transformer oil at which this oil can safely be used in transformer, is considered as 30 KV.

Answer / asma

No it is considered as 26kv(bdv of oil) according to high voltage engineering laboratory

why is the earthing pin on 3 pin top are big and thick

3 Answers   Marriott,

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What do you mean by distribution transformers?

0 Answers  

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What will happen if the interpoles in case of a generator have opposite polarities to that behind it in the direction of rotation ?

1 Answers  

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why neutral and earth should not be connected on 3 phase 440v/50c/s supply at consumer side. where as on 25kv/ac/50c/s railway traction substation neutral and earth will be connected and track at substation. and track will act as neutral and earth. Reasons for this is needed urgently

4 Answers  

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What is relation between transmission lines & Communication lines ?

0 Answers   NTPC,

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1 Answers  

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what type of earthing do for dry fissure rock?

0 Answers  

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why should small green grass ans small plant should not be there inside the transformer Yard in the factories

0 Answers   Riddhi Siddhi,

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IF 3 NOS.OF HEATERS,3KW CAPACITY EACH,1 NO.HEATER CONNECTED IN R PHASE,1 IN Y PHASE AND 1 IN B PHASE.THEIR END POINTS CONNECTED IN STAR.IF I CONNECT THIS STAR POINT TO NEUTRAL OR DO NOT CONNECT TO NEUTRAL.WHAT WILL THE DIFFERENCE.

3 Answers  

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WHAT IS SITTING AMPS IN OVER-LOAD RELAY FOR 1PH OR 3PH MOTORS?IF ITS NAME PLATE GIVEN MAX AMPS 10AMPS?

0 Answers  

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what is dc system? how getting pulse from rectifier?

1 Answers   ETA,

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In constant power region of 3-phase IM torque-speed characteristics, if frequency increases flux A does not alter B decreases C increases D none of above

0 Answers  

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