Answer / gopi

magnetic friction

Answer / mostafaghodrat

Due to moisture or
Lose is may be connected
Or the end of its useful life is

what is the generating transformer?

3 Answers  

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What are high pass filter and low pass filter? and What are the flowmeter ?

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what will hapen if we give ac supply to dc motor?

2 Answers  

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Why generator field rheostat is set to maximum position and motor field rheostat is set to minimum?

5 Answers   Bhel, College School Exams Tests, TCS, Texas,

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Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . y d.c series motor in train.train wheels r driven by D.C shunt motor ,at what voltage,and at what speed. please reply..............

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In CDG type IDMTL realy O/L , E/F, O/C which are used for out going feedrs,on R-phase o/c element, Y-phase , e/f elecment and on b -phase o/c element will be connected . Why the earth fault on center phase only, why not on other two phases?

2 Answers  

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What range of speed can you get with the field control method of speed control of d.c. Shunt motor?

0 Answers  

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the electric traction poles having 3 cables n two cables touches with a insulator (or any) another one separated but it will be running 1-phase why?

4 Answers  

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Why is the earth socket in an electrical plug outlet made thicker and lenghty?

5 Answers  

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what will be the minimum megger value for 132 Kv (earthed) potential transformer

3 Answers  

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What is dry and wet flashover.

1 Answers  

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what is the cost of a analog tachometer, for lab purpose/

0 Answers  

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