Answer / devagiri

mostly megger metod is use for earth testing.

Answer / manish parekh

Thaire is 2 method of earth testing which is carry out by
earth tester instruments.
1.Three point method
2.Four Point method

thanks

Answer / gaurav kdk

1 Tow point method.
2 Three point method.
3 By megger.

Is a direct shorth ciruit on a branch MCCB in a Low Voltage Switchboard a correct means of tesing the performance for discrimination?

1 Answers   Adani Power,

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in transmission line, if the load is suddenly increased at the receiving end of the system the phase shift will (a)decrease (b)becomems zero (c)increase (d)not be affected

4 Answers   Getco,

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How addressable fire systems work? Pl. send details with architect.(Loop), also send details regarding Gas system. Pl. help me.Thanks

1 Answers   Siemens,

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For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?

1 Answers   Hormozgan Steel,

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How to find the voltage drop for short,medium,long transmission lines of a 33kv sub-station?

1 Answers  

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HOW TO CALCULATE AMPs OF CURRENT TRANSFORMER IN HT Panel

1 Answers   MAB,

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what is the advantage of Cathodic eathing system and what is the basic principle and how itis working, please explain clearly .

2 Answers   Meinhardt,

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which type of motor using in drilling machine ? & who to produce very high torque in drilling machine?

1 Answers   National Drilling Company,

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Why earthing is required, and what effect in earthing result is more than 5 ohm and less than 5 or equal to 0 ohm

2 Answers  

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ELECTRICAL MACHINE

2 Answers   Bhel, HPC, NHPC,

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difference b/w timer and counter

1 Answers  

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What is the principle of Excitation.

1 Answers  

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