what is voltage gradient?

8 Answers   Bhel,

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why the making current is more than then the breaking current and if its true then its about a controling circuit or breaker power contact points

0 Answers  

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which type of motor is suitable for lift?

18 Answers   NTTF Nettur Technical Training Foundation, Pothigai Power Solutions,

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installation of subsatation of33kv

0 Answers  

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DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.

0 Answers  

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when we gave dc supply to 220v dc motor its rpm is 1200. then we gave 180v. how many rpm of its motor. gave answer with calculation at my ID.... ravizak@ymail.com

0 Answers   Godrej,

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protection used for alternator , feeder , transmission line

3 Answers   NHPC, Perfetti,

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my question is that....few days ago i had installed a three phase motor starter for an electric saw.the motor will run and make the hydraulic pressure which will be goes to pressure cylender by up and down lever.two number of limitswitches are also installed on cylinder for safety of motor.now when the arm of cylinder reaches to the upper or lower limit it will cut the motor's line.and motor will be stop.now wana know that what will i do that motor runs continue after the limitswitch cut it down but it shold not be made any pressure.pls answer me in brief.

3 Answers  

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For small size, high frequency coils, the most common core material is- a. )Air b. )Ferrite c.) Powdered ion d.) Steel

0 Answers   Ecil,

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what is VSWR?

1 Answers  

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Recently we had experienced following problem All RCCB breakers (connected to the load as well as spares) connected to various UPS systems at various floors at a high rise building tripped during a power break down and upon starting up of generator.This Generator is recently inducted into the installation. Can any one explain the reason behind this tripping. Regards Viswanathan

1 Answers  

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why ie corona losses in tranmission line

1 Answers  

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