Answer / k.prakashchandra

Slots/ poles

what is the advantages of having in-built acvvvf (without seperate inverter in the control panel)in the drive system of elevators?

0 Answers  

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In power transmission using open belts or horizontal shafts it is preferable to have the slack side of the belt on the top because

0 Answers   Caterpillar,

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what will happen if delta - star , 400V to 6.6KV step up transformer neutral is not grounded, Neutral is not used but transformer is provided with neutral.

2 Answers  

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what is meant by carrier aided trip protection in transmission line

0 Answers   GE,

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1. The DC generaror,s induced output emf is connected with a DC motor(as load). when increasing the load of the motor by using brake drum or any way. what are the parameters will changes in both motor and generator(voltage, current, resistance, frequency, speed, torque, power, flux etc...) 2. Similarly for AC generator and AC motor 3. similarly if using DC batteries instead of DC generator, What happens?

0 Answers   IBM, Kirloskar,

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What are options used for earthing the switchgear.

0 Answers   KSEB, L&T, Siemens,

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open circuit test when performed on double the voltage & double the freq, then what will happen with p.f and current magnitude?

1 Answers   Aarti Drugs,

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BSNL TTA EXAM QUESTION

0 Answers   BSNL,

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What is IGBT?Where it is used? What is the difference between IGBT and Thyristor?

5 Answers   AC, Formo Plastic, HBL Power Systems, SECL,

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how to prepare PPM schudule

3 Answers   TATA,

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what is the difference between normal motor and flame proof motor??

1 Answers   PI Industries, SRF,

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How one can check the faulty capacitor, diode when connected in the circuit ? and when you can not take them out ?

4 Answers  

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