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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 25709

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

1 3408

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 12843

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

1967

How to calculate per unit impedance of transformer?

2203

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

5 7351

what is meant by phase transformation ratio in induction motors?

2 15236

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

1 4070

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

1 5209

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

1 4295

why capacitor is not discharged phase to body

1 3533

Why the electron flow in reverse of current.

6 9556

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

KSEB,

4 18431

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

KSEB,

2343

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

SISL,

1981


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

How to select a contactor? How many types of contactors are available

3278


What is mean 2XWY

2494


What is the RMS and DFT principle of analogue maesurments. Which way they are advangages. where which princples give optimum results.

2678


Why did lightening arrestor solid copper rod head is sharp on mobile tower top?

2016


Define phase cross over?

1135


Why you want to join non technical field when you are an engineer?

6750


Define delay time.

1083


WHAT IS MEANT BY SHEATH VOLTAGE IN 132Kv cable?

2275


Dear all, I want to use Induction motor to open and close a 1 ton door. How much power do I need. Thanks

1886


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

1983


The D.C. spark test is applicable to single conductor cable & assemblies of insulated single conductor cables without insulation shield,metallic sheath or metalic armor?

1852


What is the de rating factor of cable? What is the importance of the de rating factor in cable selection?

2093


TO CALCULATE THE RESISTANCE OF GRR OF HT MOTOR 400KW WHEREAS STATOR VOLTAGE 6.6KV AND ROTOR VOLTAGE 705V AND ROTOR CURRENT IS 346A.

5499


full form of flry b

4167


Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example?

2228