Answer / k.prakashchandra

Trip circuit supervision is for supervision of trip circuit
for loss of DC supply,faults on trip coil or cables,faults
in auxiliary contacts and in itself, with breaker in any
position.Directional OCR acts for over current in one
direction only where non-directional acts for both the
directions

please explian how may types of maintenance works.

4 Answers   HP,

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why are using bus ducts ? why not using cables

12 Answers  

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There are a trformer and an induction machine. Those two have the same supply. For which device the load current will be maximum? And why?

0 Answers  

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what are the advantages and disadvantages of speed control of 3 phase induction motor by varying frequency explain with drawing

0 Answers   ABB, Genpect,

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1.Why sinle phase motor is not self starting 2.working principle of alternator 4.list out electrical formula

2 Answers  

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what's the difference between 'shaft power demand' and 'BHP' , when we consider electrical load list.

0 Answers   HEC,

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What is the reactive power and how to control the reactive power in power plant

14 Answers  

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what is relay multiplier

1 Answers   Atomic Energy Commission, Bhel, Wipro,

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Can without battery on line UPS,off line UPS or Invertor works please brief.

5 Answers  

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What's the differs between voltage & current & emf.

1 Answers   CTS, NTPC, TCS,

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what's the use of cvt and wave trap in 400kv switch yard.......

5 Answers  

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What is transmission line potential gradiant?

1 Answers  

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