Answer Posted / natha

low pf means high sizing of cables and equipments.more heating of devices and loss.more power drawn at the point of common coupling pcc.so economically draining activity.thus pf near to unity required.

What is conventional thermal current (Ith)

4379

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At what factor resistance r of a conductor depends?

1062

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How to calculate cable rating for 3 phase supply?

2124

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can you send me the placement papers of electrical engg. from companis like NTPC,DRDO,IOCL,HPCL,BPCL etc.?If,plz send as soon as possible.Thanks.

2102

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Can anyone please give me the parameters , formula needed to calculate the circuit breakers for building services.Thanks

2082

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what is the effect of change in supply frequency on load angle of synchronous motor,all other parameters remaining same?

2299

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if voltage bt phase & nutral is 38v in a panel board . whats the root cause.

2266

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what is the major difference between LIBBP & HIBBP.. which one is most preferable..

2882

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1902

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1. How many types of mangers? 2.How many types of capacitors? 3.pls tell me normally types alternator problems?

2256

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Can RCD's used to protect the VVVF drive if not why.

2091

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I am inpecting a 10kVA UPS what tests should i do and should i observe?

2170

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what will be d.g. capacity to cater together for 14hp A.C. load & 3kw lighting load

1945

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. What is Electrical Life & Mechanical Life of Circuit Breaker? 2. What is Electrial Life & Mechanical Life of Magnetic Contactor? 3. What is RCD, RCCB & RCBO? 4. What is the Between defferance of RCD, RCCB & RCBO?

3291

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What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?

1963

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