Electrical Engineering Interview Questions
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how we test a 3 phase motor on single phase supply....? HOW WE RUN A 3 PHASE MOTOR ON SNIGLE PHASE. supply for testing..? how we verify of a 3 phase motors 6 wire & name thame a1/a2/a3..b1/b2/b3 and c1/c2/c3 for connecting star delta starter ........i have only 1 phase supply ? help forum..........

Enercon,

1 4478

why hv winding is not placed near to transformer core

4 24095

How can calculate the daily electrical consumption of 7.5 HP motor, if the moter runs 24 hrs continiously. Also have to know about 3.5 hp chiller.

Wipro,

1744

my N-P 230 VAC at 3 wires but i haven't any voltages at phase to phase whither my supply is 3 phase, why i haven't received these line to line voltages ?

2 3235

what is the first step of dg shycroning ?

ABB,

2 4185

what is power factor?

MAHINDRA,

9 9640

how we can check that any motor is faulty may be single phase or three phase?

MAHINDRA,

2 8083

we touch other end of the tester supply, why do not get shock?

L&T,

7 13348

what is tha gap between the pole of 132kv line

2 4851

What sort of protection scheme do you suggest for the protection of a 10 HP motor?

Chevron,

1 7499

Why the capacitor bank is keeping on for electricity supply and keeping it off for generator supply

3 5090

what is the primary current in 415/415 v when secondry of dry type transformer is shorted.?

3 5450

What are the conditions to be satisfied before connecting two DC generators in parallel?

Bhel, Godrej,

9 15132

how to calculate the conductor size for certain KV transmission line and distribution line?

Hyundai,

2057

What is the difference between earthed & unearthed system?

HCL,

2 5219


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Un-Answered Questions { Electrical Engineering }

what is the difference b/w ATS and HTS?

1740


The loads are connected with phase and ground then why current flow as the loads ?

1520


what is earth-fault?when it occurs? to check where it occurs what type of test should we do?

1584


we have 15 ampere variyac but we want 30 ampere variyac what we do

1463


Why choke coil is connected in series with starter in tubelight??why starter is connected in parallel to tubelight??

2960






star delta starter contorl circuit... drawing..

1701


in power generator normaly voltagr betwween esth to neutral is 0 but my work place generator show the volatge is 60v any body know why? thanks

1459


internally connection of photvoltic module

1509


Write the force balance equation of m ideal mass element.

752


does a DG set has low fault level as compared to that of a transformer.If yes then why.

1572


how can we phase identification in a distribution line,how we recognise that which phase is coming for a house hold connection.help me............

1620


What aturn on methods of scr?

743


how did i get the competency certificate as electricle supervisor. iam completed my b.tech.but i dnt have any experince, this certificate is required for applyng ongc mangement trainees. what should i do sir please suggested me

1484


I want to ask that is there any relation between current denesity of copper and material purity. also is ther any standard which defines the standard current denesity of material.

1502


What is cathode ray oscilloscope (cro)?

703