Answer / shariff

Trf will fail as the un-balanced current will enter in the main windings.

Answer / arup kumar sadhu

Neutral is grounded to protect against earth faults and to eliminate transient voltages. If not earthed we would never know that a conductor has fallen down and during this if another conductor falls down ,the fault current will be 73.2 % more.With one conductor fallen on ground the voltage between healthy conductor and the ground will be 1.732 times the normal

Explain with example of functional requirements of protection relay in terms reliability, selectivity, sensitivity

0 Answers   NCC,

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how the voltage between all the three phase is zero can any body explain me

5 Answers  

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what is phase to phase to phase to ground fault

1 Answers  

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If you touch at the end welding machine, will you have shock ?

1 Answers  

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we have a 2000kva step down transformer at our site. The HT side is charged from 22000V. So the primary current will be 52.48A. So why the HT breaker(SF6 ABB) is rated of 1250Amps ?

2 Answers  

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CAN ANY ONE EXPLAIN THE KNEE VOLTAGE OF THE CT?

3 Answers  

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Please explain me about Relay curves and their sources to read ?

0 Answers  

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In power plant synchronizing time (synchroniging meter should be 12'o clock position only. why not 6'o clock position not possible.

1 Answers   ITC Infotech,

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what is high - pot test. what's its use?????

0 Answers  

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We have three phase dg of 12kva rating.If the load of each phase is not constant.That means one phase drowning more load than remaining two phase..Then what will happen to dg?

1 Answers   Indotech,

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What is mean by hot and cold loop testing? What is the difference between them?

0 Answers  

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Single line diagram for dbb (double bus bar)system.

0 Answers   KSEB, L&T, Siemens,

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