Answer / krishnappan

in switchyard first our earth switch should be open.
after that close the bus isolator,then line isolator.
finally close the circuit breaker

Answer / sandeep

in case of maintainance first open the circuit breaker then
open the isolator then close the earthing switch
and while charging the line do exact reverse i.e. open
earthing switch first then close isolator then finally
close circuit breaker.

what is non uniform load

1 Answers  

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how much kn lightning arrestor is used in 11kv line

8 Answers   Power Grid,

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What are documents to be required for export of the material?

1 Answers   Siemens,

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What is PQA???Applications........

0 Answers   Emerson,

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why multiplying factor is used in wattmeter???

1 Answers   Nippon,

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ups battery design formula

0 Answers   Amara Raja,

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What is the min.& max distance between two earth spikes is required for measuring earth resistance of an earth pit? Is the manufacturer of Earth tester decides this? Pls explain.

3 Answers   ABB, HAL,

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How o select the electrical fuse?.What are its characteristics.How to select the material od fuse?

0 Answers   BARC,

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what is the voltages using in movie theaters??? why ??why not other??

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Relay setting for earth fault of reciprocating and centrifugal compressor motor feeder.Setting will be different or same?

1 Answers   Reliance,

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Slip at maximum torque depends on A rotor resistance and reactance B stator reactance C load current D stator resistance

1 Answers  

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what is the difference between isolation and insolation ? please explain in detail with example.

5 Answers   ABB,

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