Answer / shankargoudarcr

all I.T.I ELECTRICAL QUESTION PAPAERS

Answer / rajeev kumar yadav

Diploma type

what is back emf?

4 Answers   Bhel,

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how moving coil indicator works?

1 Answers  

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explain the functions of main isolation switches

0 Answers   Zesa,

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Even motor protection, why motor burn out ?

1 Answers   Indorama,

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when i am going to take trail on a 3ph sq.i/m motor 5.5kw, i observed that RPM of the motor is very low as compared to the rated RPM and also it rotates in clockwise in first ON command,and anticlock wise in second ON command. finally i observed that on phase is no available . but iam not clear about, why the motor is rotates in both directions without any phase interchanging.pls answer to my question.

1 Answers  

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what are the different sizes of U.G. cable & where these cabl;es are used according to voltage ..

0 Answers   HPCL,

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why capacitance effect is predominant in underground cable transmission and inductance effect is predominant in over head line transmission?

0 Answers  

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How will polarity test of Dy5 Transformer ?

0 Answers  

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In Transformer testing at Shop test we normally test for vector group, open ckt.,short ckt. but what are the other test performed for transformer once it reaches at site.For e.g:if the transformer is dry having rating 1000KVA?

2 Answers  

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Explain the different methods used in the choice of rotor slots for reduction of harmonic torques in an induction motor.

0 Answers  

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what do you mean electrical earth pit?

2 Answers   Enercon,

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what is the safe meggar values for motor, transformer HT, LT and Cables?

12 Answers   IOCL, Jindal, TATA,

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