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DLF Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What are the difference between C-Curve and D-Curve for MCB's.

 17 175221

Why the generator rating in kva

 32 87519

what are the differences between MCB and MCCB ?

 19 31012

what should be the air clearence between phase to phase, phase to earth in Medium voltage switchgear for 3.3kv,6.6kv,11kv,22kv and 33kv? Which is to be referred for this?

 1 5611

in elevator industries , how to calculate the required KVA for the elevator (elevator spec- 40A module , motor of 13.5KW, 20A)

 1 8058




I want formula to calculate cable size as per load given in kw & amp.I searched many sites but didn't right answer.Plz reply me asap.

 41 391572

Why use the VCB at High Transmission System ? Why can't use ACB? Pls explain the ans.

 5 15243

HOW DO I CALCULATE OVER LOAD RELAY & CONTACTOR IN DOL STARTER? & in dol why it is require circuit breaker?

 6 17148

What is an Air COmpressor

 1174

If single phase having 220v so why 3phase is440v.

 7 18968

why Batteries & Battery chargers are used in substation? what is the different between UPS & battery charger?

 4 44672

what is the harmonics.

 3 3230

what is the difference between earth and neutral.

 9 7093

What is the function of UV coil ACB?

 6 35915

How much KVAr bank reqired for 630 KVA transformer on full load for maintain power factor upto.99

 4 11184

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DLF Electrical Engineering Interview Questions





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