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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why induction motor can not be operated at synchronous speed?? what would happen if it is operated at synchronous speed??

5 25525

can we coorect P.F. OF 320 KVA ALTERNATOR AT LOCAL SITE WITH RATED .8 PF LAGGING.

1 3330

sir, i want to know the calculation for find rated current for cable sizes.(both copper & aluminium) with examole. please sir for example: 35sq.mm al.cable is withstands for how many amps? is suitable for 45kw motor?

L&T,

5 12599

what can be the causes of capacitor start motor having a higher current that its actual

1932

How to calculate per unit impedance of transformer?

2136

Why the output of generator varies eventhough the shaft speed is constant in thermal power plant?

5 7216

what is meant by phase transformation ratio in induction motors?

2 15101

why generator one end side star neutral point given? if this point not given what happen?

1 4000

what happen if turbine trip ,g.c.b not open and excitation on condition?

1 5087

what happen if steam turbine trip,g.c.b not open and excitation off and on condition?

1 4222

why capacitor is not discharged phase to body

1 3453

Why the electron flow in reverse of current.

6 9322

What is the function of an Auto reclosure relay. How does it work??

KSEB,

4 18224

What is EHT tariff or Power factor Tariff ????

KSEB,

2306

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

SISL,

1931


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Describe the control mechanism of missile launcher???

1919


How to Make relay co ordination chart for a Electrical power distribution of a plant

3785


Is there a standard depth of gravel fill in Substation Switchyard? Please give a design/drawing. Thank you.

5357


what is the IPC ? & what the uses ?

1454


What is the Minimum winding resistance of motors ( small & big)? referance range

2270


whats the existence of reactive power and when it arises?

2094


How can we calculate the transformer rating if the load calculated is 1000KW (11Kv Supply)?

1016


HOW WE KNOW IN PHYSICALLY THE CONTACT SURFACE OF A VACUUM INTERRUPTER IS GOOD OR GOING TO DAMAGE IN A VCB AFTER ABOVE 500 TIMES OPERATED.

2013


Why in ESP Positive earthed

3041


what is the current density of copper & alluminium.

2003


dg earth connect only in the amf panel or not why

2036


what are the values of VRY,VYB,VBR,Vry,Vyb,Vbr,Vrn,Vyn,Vbn for Magenetic balance test of 100 KVA and 63 KVA Distribution transformer

2934


What is electrical diversity factor in electrical installations?

1160


why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?

2886


What is UPS and How do you maintain the UPS Maintenance? Brief Description on UPS maintenance.

2552