When measuring the Insulation resistance of a motor winding (winding to earth) using a megger meter, Applied voltage(1000V) was automatically reduced to 500V. and the measured insulation resistance values are also very low (in Kohm range) Can anyone give me a reason???

3 Answers  

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What is the function of under voltage release ?

0 Answers  

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Why Exciter higher ferquency ?

1 Answers   Core Logic,

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What is the name of transformers oil filteration equipment?

0 Answers   Reliance,

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i have attended the interview on 4th June,08 at Kolkata in IOCL, can anybody tell me what is its result

0 Answers   IOCL,

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why voltage will come different in phase?

3 Answers   HP, Vissa,

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6. A DC AMMETER HAS R=0.1 OHM & CURRENT RANGE IS 0-100 A IF THE RANGE IS TO BE EXTENDED TO 0-500 A THEN METER REQUIRES SHUNT RESISTANCE OF ..........

2 Answers   SSC,

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ouestion for the post of section engineer

1 Answers   BSNL, RRB,

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what is the difference between the alternator used in hydro and thermal power plants??

2 Answers  

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What is Hi-Pot Test for Grid Station HV Equipments?

2 Answers   Siemens,

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For two systems transmitting the same amount of real power, the system with the lower power factor will have higher circulating currents due to energy that returns to the source from energy storage in the load.???

0 Answers   Bhel,

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what will happen if ac motor given dc supply?

1 Answers  

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