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

If only R Phase is connected in 2 pole elcb, n is not connected than it will work or not in ground fault.

0 Answers  

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What is current & voltage ? Voltage perform at any load without current or not?

0 Answers  

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Are Refrigerators & Deep Freezers the Inductive load ? How to calculate the Power Factor & hence the Output Power for them ?

0 Answers  

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what should be distance between phase to phase in 415v system?

1 Answers   NTPC,

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1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to reconfirm its base capacity.

0 Answers  

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We in my plant one of the transformer showing neutral to earth voltage is 22V how to solve it

3 Answers  

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sir, i'm preparing for hpcl exam officer trainee pls tell me how the exam ques paper pls pls

0 Answers  

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what is meant by power factor ?

17 Answers   Harita, Pricol,

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how braking & making capacity of circuit breaker are calculated?

0 Answers   Bhel,

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in india ac frequency is 50hz, but in foreign countries it is 60hz,whwt is the reason

9 Answers   SVIT,

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What is the difference between Contactor and Circuit breaker ?

8 Answers  

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As i want some model question paper in basic computer science and history please send me immediately sir

0 Answers   TNPSC Tamil Nadu Public Service Commission,

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