Answer / jakeer

Various reasons for motor getting over heated.
1.Due to faulty bearings.
2.Due to low voltages.
3.Due to load fluctation from the drive end.
4.Due to mis assembly of motor.
5.Due to rotor fotness problem.

what is the difference between the 94 lockout relay and 86 lock out relay. I have noticed that the 94 lockout relay is activated when the distance realy is activated and 86 is activated when the 87T differential is activated. but why can't the same lockouts be used for both the protection schemes

10 Answers   ABB,

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Which material is used for the core of a transformer and why?

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what is the difference b/w single and three phase circuits?

1 Answers  

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please I wont know how to calculate the vector group for power transformer ZNyn11 best regard.

0 Answers   Al Rasikh,

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why indicated sypply only by 440V in 3-phase system.

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Which contains in POLE ASSEMBLY of a 11KV Kirloskar-make SF6 (Model No-FP620A12)? Will u clarify with drawing?

0 Answers   Kirloskar,

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why the electrical plug point pin(earth) size in max

1 Answers   Autoneum Nittoku, Bajaj,

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how can i find ct ratio of meter by seeing name plate of meter and how it should be used in MF calculation if it shows only-/1???

0 Answers   Harshal Electrical,

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WHAT IS THE COMPLETE DEFINATION OF POWER FACTOR?HOW IT CAN BE IMPROVED?AND WHAT IS CAPACITIVE LOD AND INDUCTIVE LOADS

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how does an encoder work???

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What are m circles?

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what is the function of turbo charger in disel generators

1 Answers   Kirloskar,

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