Answer / khamesra.amit

PD is localised discharge which happens within the insulation because of small air pockets formed during winding insulation is being done in workshop. A Ultra high frequency signal is injected at the terminals which detects the frequeny and magnitude of electrical dischages. These values halps us in dentifying healthiness of insulation of the equipment.

5MVA TRANSFORMER SUDDENLY FAIL WITH THE PRV TRIPPING AND LARGE AMOUNT OF OIL SPREAD OUT? SO IT CAME BACK WITH THE REPAIRING WITH REASON THAT IT FAILS BCOZ OF TRANSIENT EFFECT? SO PLZ EXPLAIN HOW DOES IT HAPPENED?

1 Answers  

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what purose of the double circuit transmission line phase of the line phase changed for circuit-1 for Circuit-2 R-Y-B B-Y-R

0 Answers   NCC,

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how is the cable tray designed & how its total length is calculated for an Industrial plant Say for Ex. (500KW Motor Load)

0 Answers  

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How can i calculate heat load ?

3 Answers   DSSR, NSN,

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what is relay multiplier

1 Answers   Atomic Energy Commission, Bhel, Wipro,

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how do i commission a distribution transformer knowing all its ratings and transformation ratios?d

1 Answers  

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A ii kv 1200 A Breaker combination fixed in a cubicle. How many ampere Fuse is required? If fuse is not using, Why?

0 Answers  

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At a family reunion were the following people: one grandfather, one grandmother, two fathers, two mothers, four children, three grandchildren, one brother, two sisters, two sons, two daughters, one father-in-law, one mother-in-law, and one daughter-in-law. But not as many people attended as it sounds. How many were there ?

6 Answers   CTS,

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which motor gives constant speed?

7 Answers  

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I am a possesor of c licence from 1993. I forgot to renew during the year 1998. During that time I was working at TNEB to till date. Is there any possibility to get renewed? or to apply for a new one?

0 Answers  

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what is meant by armature reaction?

13 Answers  

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We are installing a 1.6 MVA transformer at our crusher plant and the feeder of HPSEBL is 2 km away at substaion . and a VCB is installed in the substaion which is 2 km away from transformer so we need another VCB near the transformer.

2 Answers   SCPL,

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