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Electrical Engineering Interview Questions

can we use ac ameter as dc ameter with ct

3295

How will you calculate the correct KWH value if your CT is 600/5 and your KWH meter is rated for 100/5

L&T,

5471

what is meant by transformer oil temparature

4013

Why don't connect earth wire to elcb?if earth fault occur,how will detect it

3274

if single phase is having 220v supply then why three phase is having 440v instead of 660v?

C&S, NTPC,

6505

Fantio of tranformer

1504

What is the basic difference between directional and non directional over current protection?

3754

In an electrical power supply,why if neutral phase of a 3phase supply fail over current occur but if it's single phase supply neutral phase fail low current occur?

2534

why transformer rating comes in kva?

6147

I have 440v power coming to facility,( not being used ) can I buy large generator, (gas) to sell power back to electrical co.

KVF,

1848

exact definition of reactive power in power system

3859

why conductors of low tensile strength 1)produce greater sag and 2)can not be used for larger spans

1810

What is multiplying factor of meter if the meter ctr and ptr is open type?

3479

We order Dyn 5 distribution transformer to a company. What arrives is Dyn 11. Is it ok to use this transformer. It will be installed alone.

4510

in transformer input is d.c signal which type of emf is induced

3357

Un-Answered Questions { Electrical Engineering }

I want d.g.set our company

1138

From past few months I am getting lagging pf even though sufficient capacitors used in circuit. Where is the problem pls answer

774

what is the difference b/w UHVDC and HVDC(LIGHT)?

4148

What is Diff btw Fire Alarm & VESDA System???

1690

Control wiring of a dol starter for forward and backward

833

Why can't we parallel the secondary circuits of two voltage transformers?

789

How does a tertiary winding filter harmonic(espcially 3rd one) from entering into load system?

1228

Either It Possible a dc Motor to Run On Ac Drive [ Ex : ACS 800 , Yaskawa F7 ] If it is Possible How Pls Inform Me dinesh_elect_eng@yahoo.com

1353

use of choke in APFC panels

4587

sir vizag steel ka junior trainee ka paper kitne number ka ayega

1557

give some advantages and disadvantages of combiniing the session, presentation, and application layer in the osi model into one single application layer in the internet model

1953

I have iti elec, 1st aid, and 5 yrs experience in 7.5 mw power plant. Am i eligeble for 11kv license in telangana state..when, how to apply for that.?

1562

in battery charging room we find two fuses (one in positive other in negative cables ).why it is so?one fuse is ore than sufficient?

1636

What do you mean by the zone of protection?

455

What will happen if the d.c. Machine is operated below rated speed?

495