Answer / guest

over current-a)instantaneous, idld,thermal earth fault,
under votage.

Answer / romeo

in addition, differential relays for current and voltage
are necessities also to monitor considerable leakage of
current and difference in voltage (in case of two leg
switchgear for a make and break design) to a magnitude that
will activate tripping action or prevent closing of the bus
tie.

why transmission lines traveled in high voltage?

5 Answers   TATA,

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2. A current i=(10+10 sin t)amperes is passed through MI type ammeter. its reading will be.........

0 Answers   SSC,

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1. what is exciting winding, rotor winding, startor winding. and how it works? in ac generator

3 Answers  

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how "rabbit ACSR" conductors are more efficient than "weasel ACSR" conductors

1 Answers   AITM,

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what collector is used for 100kmph-120kmph tracion application?

3 Answers   APTransco,

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why we take transformer reading in kva

6 Answers  

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What is the difference between phase, neutral wire and earth cable. if neutral is connected to ground, y we need earthing cable? what difference in hot and cold wire? do neutral wire carry current?

1 Answers  

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1)how many types of earth? 2)how many types of megger and how to select that range? how much time taken for megger calibration( we r using megger)

1 Answers  

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What is the power factor,apparent power,reactive power and formula of power factor.

3 Answers   MNC,

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After doubling voltage from solar cells & use step down voltage transformer can we get high current output with low voltage.

0 Answers   Transco,

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What is GD2(kg-m2) for Sq. cage ind. motor?

2 Answers   ABC, Essar, MMM,

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How can we increase the capacity of Energy.?

0 Answers  

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