Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Difference between online and offline UPS?

11 23879

How to calculate earth flat size for 250 Kva DG and transformer?

Deepak Fertilisers,

8 33455

can we use HPSV LAMP in HPMV LAMP fixture ?and viseversa.

OPS,

5 11899

Why motor initial starting current is high?

Pennar,

9 59560

megger generates D.C. voltage while earth tester generates A.C.voltage is it true? I know for megger it is D.C generator but what about earth tester?

IOCL,

4 23974

What is the cause for a blown fuse in one phase of primery side(HV) of a three phase transformer( 4169v-460v) in the time of closing its supply breaker. There is no load on the secondery side of the transformer in this moment.

Novachem,

3 12341

iam using DM 3251 voltmeter(1 percent accuracy)for 11KV system PT ratio is 11KV/110V.can anybody explain what is the max and min voltage deviation.

1764

What is mean by Sub Synchronous Resonance(SSR)???

1 3602

Will sag depends on the Specific Resistance of the conductor?if not Why??????????

BARC,

2 4308

how to calculate the neautral earthing conductor size for a 500kva dg set.

2 10798

What are the implications when the power factor is is leading condition ?

1 2552

What is double delta conection in AC Motor? And can we done the double RPM of the motor by double delta conection?

vguard,

1 11733

How to control speed of DC motor with AC power?

vguard,

7 11415

why transformer is giving some humming noise .....?

Electrotherm, JSW,

11 27591

when the rheostat kept in minimum to maximum position in motors what will happen?

7 16248


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Connection diagram for KW meter and  Kva meter

1791


1. transformer design formula ? 2. how to calculate the primary turns and secondry turns ? 3. core types ? 4. how to find the primary current and secondry current ? 5. how to calculate the stacking factor ? 6. range of fulx density ?

10219


what is the effect of earth on capacitance in 3-phase and 1- phase transmission line?

1911


What Normal(Tangent) towers and Tension(Cut-point) Towers?

5233


List advantges of active filter over passive filter?

639






What is the Load Capacity of Panther conductor (0.2) and dog conductor (0.2) 

2323


What is the necessary condition for stability.

734


can mini-curcuit supply MIL-tested transformer !

1627


please send previous exams question papers

1402


Explain what is electric traction? Explain few advantages of electric traction system?

615


HOW WE CAN REDUCE THE CIRCUIT COMPLEX OF STAR-DELTA STARTER .BECAUSE NOW WE USING ONE TIMER RELAY & THREE CONTACTOR FOR MAIN,STAR & DELTA ?IF ANY IDEAS PLZ POST.THANK U

2006


1sq mm dc powr cable can carry how much dc currnt

1497


describe the Tranformer testing procedure

1468


we have amp, voltage, kw, length detail then how to calculte copper & alluminium size of conductor of 3-phase induction motor

963


Why is voltage is required to be within permissible range for an electrical equipment?

1272