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Question
What is meant by TAN-DELTA test carried out in motors?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
u mean what is tan delta ???

tan delta is dissipation/loss factor of insulation
we want to know what is condition of insulation in
equipment

and u want to know more detailes mail me

malavtrivedi2002@gmail.com
 
Is This Answer Correct ?    13 Yes 2 No
Mrudang
 
Answer
# 2
TAN DELTA test are also performed in Transformers like in
motors to evaluate the condition of winding Insulation and
Bushing Insulation Strength in transformers.A DC voltage is
applied across the terminals and the value of leakage
current is noted down.the leakage current can be split into
Ic and Ir.the value of Ir should be as low as possible to
ensure that the dielectric strength is satisfactory.
 
Is This Answer Correct ?    11 Yes 9 No
Ragahvendran
 
 
 
Answer
# 3
Is this test mandatory for 3.3kV motor. Standards specify
necessity above 5kV, but I am in doubt why the same is not
applicable for 3.3kV motor?
 
Is This Answer Correct ?    0 Yes 0 No
Sanket
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
when we connect the capacitor banks in series with the circuit? Cipla 3
why we used capacitor in induction motor? Mitsubishi 4
What is the starting current of a motor?   3
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why earth hole size is biggest in socket point.   3
what is onan, onaf, ofan, ofaf in transformer?   6
funtion of choke L&T 4
How feedback transformer works to feedback power in Slip Power Recovery System   2
what is the full form of MEMO? name of memo train. BirlaSoft 5
why we did not get shock by touching nuetral of any single phase supply of a electrical equipement?   5
what is the function of LBB relay   7
What is meant by Energy Efficient Transformers??? give significance MahaGenco 1
 
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