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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

working principles of cf lamp,incandescentlamp and f lamp?

2269

How each of the following losses occur in d.c machines (i) copper (2)core (3) windage (4)friction please help me

2050

Why does an induction generator is preffered as compared to synchronous generator in especially a wind energy power production project?

2138

One 15kw motor Why we used star delta feeder?why not used DOL please explain in details

BMM Ispat, GSK, Pitti Laminations,

3 8989

WHAT IS THE FAULT WHEN 100HP TURBINE MOTOR TRIPS, LIST THE FAULTS AND ITS TRABULESHOOTING TIPS.. MY AUTO TARNSFORMER STARTER TRIPS

MPS Techologies,

2099

What is ferrite affects and what is disadvantage of ferrite affects.

1 3382

what is the meaning of Ring Mean Unit in a substation or trasformer also tell me its oerpuse?

NPTC, NTPC,

4 51058

How can make a star delta with Rstar delta feeder ( ( 4contactor & one timer ) pls answer with digram (power &control digram)

1 3714

write circuit diagram for a motor rotate in forward direction once it started and when pressed the same button it should rotate in anticlockwise.

2572

What is the output of 25 kva 11/.4 kv transformer in kw ? Plz generalized it...

NTPC,

3 9230

I WANT HOW CALCULATE TO CABLE FOR WELDING PLANT ?

1849

what is mathed of check the D.C MOTOR 181 KW (ARMATURE AND FIELD) WHAT IS THE MATHED OF CHECK THE THYRISTOR MODULE (HIGH CURRENT)

2055

Can we transmit digital signal to long distance ?

1970

can u give me a brief idea about power line carrier communication ??

1859

can u give me a brief idea about power line carrier communication ??

2005


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

What is Traction? 1KVA Alternator, How much urrent taken?

2136


A 3-PHASE TRANSFORMER IS USED TO STEP-DOWN THE VOLTAGE OF A 3-PHASE, 11KV FEEDER LINE. PER-PHASE TURNS RATIO IS 12.FOR A PRIMARY LINE CURRENT OF 20A, CALCULATE THE SECOUNDRY LINE VOLTAGE, LINE CURRENT AND OUTPUT KVA FOR FOLLOWING.A)STAR- DELTA.B)DELTA-DELTA.

3071


What will be the impact on motor performance if a LT motor is rewound with changed motor winding data as given below:- Original winding data: total 04 wires = 02 wires of 17 SWG + 02 wires of 16.5 SWG. Changed Winding data: total 03 wires of 15.5 SWG wire size Motor rating: 160KW, 740RPM, 415V, ID FAN application. Normal Running Current = 95% of FL Current.

2062


What are the material used for inductance coil?

1157


what is the function of statics switch in ups and tell me parts

2049


what is the use of power transformer in GSS.

2509


when the Transmission and Distribution network where is the "feeder" lines are located? and why should be used in T&D network.....

1789


Star Delta Diagram with full description

2405


A well system is when , no. of bus bar is less or more. Tell me the concept of it.

1938


sir i used 3 hp of motor for spraying pump, other home light and other home items which size of allminium pvc wire ix used

1902


Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...

3114


what is transformor oil gread

2554


what is the vvvf in the dumbwaiter?? or lift. what is the actual process?/

2101


When we use 3 terminal resistor?

1260


How to synchronization will be done between two DGs ?

1786