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HCL Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the difference between earth and neutral?

56 125682

why earth hole size is biggest in plug point?

22 31068

What is the difference between online ups and offline ups?

44 192898

How to calculate the size of the conductor for particular load

9 21842

why we step down voltage level from 33kv to 11kv and 11kv to 415v.Instead we can step down voltage from 33kv to 415v directly using single transformer.

12 57733

why transmission line 11Kv OR 33KV,66Kv not in 10kv 20kv?

43 98897

In a Circuit how the MCB and Fuse ratings are calculated. And shall the fuse follws the MCB or it is otherwise?

16 80725

A 100 MVA transformer may be cooled with?

6 7712

what is the effect of power factor on DG supply,i mean to say what will the effect if we add capactors on dg supply.

4 4883

what are the main parts of UPS what is the function of that?

23 100937

how many earthing should need for UPS, where its connected

7 7355

can SMPS work in DC supply ?

10 17154

Why we choose 400kv,220kv,132kv,66kv,33kv transmission voltages for transmitting power. Why not other voltage levels.

21 49452

what we happen if 400 kvar cpacitor banks are on in manual mode and there is no load on mains ??????????????

7 5916

what is the difference between elcb,rccb,mcb.

8 35194

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