Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

How do performance buccholz relay testing in power transformer

1 3362

What is the different between buchholz relay and pressure relief device?

2 19581

Why DG self motor winding burnt out?

Aegis,

1 5435

in 4 pole lap wound dc motor one brush is disconnected then what result in new voltage if its voltage is v volts power is p watts current is i amp

GATE,

1 3825

Cummins 750 KVA generator how much disel consumed per hour and how many units generated on 100% full load.

1 11330

For 7.5HP motor 2880rpm 415VAC Connected with Pressurisation Fan we used Star Delta Startor why not we use DOL startor

DLF,

2 5983

what is different between buchhoz relay and pressure relife devices in transformer

Spanco,

2 5807

What is electrical charger?

HCL,

3 6053

Explain Creepage Distance of Insulator

ABB,

2268

for a slip ring induction motor if the stator is short circuited and rotor is given supply? how does the rotor rotate?

TNEB Tamil Nadu Electricity Board,

1 4907

What shall be the minimum distance to be maintained between two power cable in a common trench?

3 6889

How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?

2662

How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?

ABB,

1968

What is the purpose of reactor.why we used in over head line?

2 5150

what was the function of the auxillary relay?

3 6879

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Un-Answered Questions { Electrical Engineering }

how to calulate short circuit current for the following: 1.cable connecting 11KV of 22KV/11KV transformer to 11Kv of 11KV/415V transformer 2.what cable size should i use.

2239

Is the theorem applicable to ac sources?

1110

CALCULATE THE TOTAL VOLTAGE DROP AND SELECT THE CABLE SIZE IN MM-SQARE FOR A PANEL-262KW AT 110 METER FROM THE SOURCE SUPPLY , SUPPLY VOLTAGE 240/415

2730

if an insulated power and control cables of a running gas diesel gensets laid direct in an open trench i.e, trench bed is not rcc of a power house in which rain water, spillage water alwas exists and all power control cables remains submerged even when gas gensets of 480 kw each runningin on load. These power &control cables runs from power house to switchgear room through these trenches in which water remains most of the time. pl explain its merit & de-merit

1929

What is resolution of a measurement?

1263

Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??

2258

What is CCM in Electrical ? where can we use this material?

1523

If I bring a basic electric meter from the States and hook it up in Costa Rica in a development that has only one transformer for the 50 homes, will it still be accurate regarding the usage of kilowatt hours?

1982

Why CBCT rating is 50/1A

2930

Please elaborate th´evenin’s theorem?

1214

lorteny method

2051

why star point of HT motor not earthed?

2352

why to use freewheeling diode ( diode in revers bias mode) across dc coil

5126

What are the advantages and disadvantages of the dc motors?

1195

what are the main faults that occur in stabilizers? How they corrected and resolved ? Types of stabilizers ?

2154

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