Answer Posted / arun

There are two type of testing in motor.
1,Insulation Resistance test,
2,winding resistance test

how to test the electrical panel.ht lt mcc pcc.

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I am going to appear RRB Sr. Section Engineer Exam, Electrical. Can you send me previous year questions of RRB Electrical engineer. specially Section Engineer questions. my email id is likerahulworld@gmail.com

1805

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For a stable system, where should the poles of a system be in a root loci plot?

1230

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In a voltage-controlled current source A A current booster is never used B The load is always floated C A stiff current source drives the load D The load current equals Isc

1886

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State thevenintheorem?

1055

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explain transformer ct connection?

2057

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some time we open engine breaker 8.0 MW load but plant not trip. and another time engine open 4.0 MW load engine trip why? individually engine breaker open & individually emergency stop why difference?

1755

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If UG power cable both ends are to be earthed or what? If not why?

1941

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Are Refrigerators & Deep Freezers the Inductive load ? How to calculate the Power Factor & hence the Output Power for them ?

5103

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How you calculating the 30 Hp 3 phase AC motor of power what size of cable is used for this motor?

1657

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What is the function of NGR for the parallel operation of alternator? whats happen when different rating of alternator are running with parallel?

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IF % IMPEDANCE OF A TRANSFORMER IS INCREASED FROM 5.8% TO 8% HOW MUCH THE EFFICIENCY OF THE TRANSFORMER WILL COME DOWN?

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please tell me, how i clear the objective test? when i studied form the one book after i solved the objective ,that time i solved that qes. but if i tried solve objective form the other book then i could not solved these que.

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3- What is the target from Zero Impedance, Single Phase Imp., S/C Imp. and magnetic balance tests?

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Explain what is clipper and clamper circuits?

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