How to know vacuum in vacuum cylinder of breaker in working condition

0 Answers  

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what is the physical connection of a analog i/p to a analog i/p module (ab plc)and through a analog o/p module(ab plc) to a analog o/p . and how all the process control by scada

0 Answers  

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short circuit test of transformer gives what?

9 Answers   NTPC,

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What will be the effect of circulating current in HT xlpe cable when both the armour ends are grounded. Will the termination fils after some time in case of 33 kv supply.

0 Answers  

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wow to calculate the transformer rating(KVA)

0 Answers  

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if v r considering a 4000/1A ct,if v inject 1 amps in secondary core wat happens?(consider as 2 core ct,each for metering and protection)

1 Answers  

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What is the Different Between Breaker and One and half breaker.

2 Answers  

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What are the disadvantages of autotransformer?

0 Answers  

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Please give me the formula stating relation between AC & Dc.

2 Answers   JP Group,

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installation of subsatation of33kv

0 Answers  

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what r substations?what r there work?why voltages r incresed and then reduced during distribution of power

0 Answers  

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what is the working and construction of generator

1 Answers  

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