pls give me brif explaination about the distance relay.

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why dc measurements are noted in mc whereas it is mi in ac measurements?

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Name the types of motors used in vacuum cleaners, phonographic appliances, vending machines,refrigerators, rolling mills, lathes, power factor improvement and cranes.

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1. What is differential relay? How it operates?

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what happens when back feeding supply accidently collapses with normal supply ??? How?? [that is sometimes in a substation 11kv feeder if their ws long time permit work, back feeding supply will provide from nearest substation... if accidently after the permit work,they charged the feeder without removing back feeding wat will happen...?]

1 Answers   KSEB,

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Can we step up a 230V supply to 400V using a single phase transformer??

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how to compute kvar in substation feeder to improve power factor and sending voltage

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why earth fault current is always less than the o/c

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Tell me the reason of connecting domestic t/f primary in star or delta,and also secondary side.

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We have a couple of oil tanks at our plant. One of them does not have a lightning arrester installed. My question is it necessary to install an arrestor on every tank or will this particular one be covered by the arrestor installed on the ajdacent tank, Since all the tanks are close to each other. Basically, I want to know that if these arrestors or protection works in a parituclar area of effect or influence. Thanks

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what is diffrent of RCCB & MCCB

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IAM GOING TO ERECT THE STREET LIGHT.,, I NEED HOW TO CALCULATE LUX., ILLUMINATION.,AND ALL

1 Answers  

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