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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

A 2083kva AVR was tested, phase to ground shows continuity, what is the implications

983

Types of circuit breaker

1 1778

Different types of relay fault which phase sequence??

865

If 22 KV HT line, Current transformer is 25/5 then how to calculate multiplying factor.

1052

how to compare with Relay settings for HT< panels, RMU panel, and PSS CSS transformer?? 1) Load amps, 2)Tripping time, 3) CT ratio, 4)Cable size 5) Transformer KVA rating 6) transformer full load amps

1207

how to setting Load amps tripping time and extra settings for load Transformer protection relay with RMU panel using C&S model relay..?

1092

In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes

754

how to revers the direction of single phase motor

923

How much voltage we need to apply in 33kv cable during hipot test of cable

817

An impedance of 100 ohms resistance and an unknown inductance is connected across the capacitor. The resulting impedance is a pure resistance of 500 ohms ifω = 10^5 rad/sec. calculate the values of inductor and capacitor.

1379

Slipring moter find external resistance

1 1437

tell me about your project

1 1574

Interchange 7 and 6 ,÷and× 36×7+4-7×3

1 1551

Why GRR starts from 60% of motor speed why not less than 60%?

1661

How to test transformer

1 1636

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Un-Answered Questions { Electrical Engineering }

why EMF IS INDUCED IN A CONDUCTOR WHEN FLUX LINKING WITH IT CHANGES ACCORDING TO FARADAYS LAW.

1983

sir iam from electrical and electronics branch ,can i appear for the hpcl offline requirtment? if yes please mail me on vikram_raju25@yahoo.co.in

1994

I have 4 busbar of 1000 ampere. we use 4 busbar to make 4000 ampere in one phase.my problem is that when we applied 60% load on that then busbar produced high noise.what is the reason of that and how can i minimize that noise.

1661

What is the rating of circuit breaker needed for 300 KVA load in 33 KV supply line in a transformer of 33 KV / 415 Volt ?

1742

what is strip power factor?

2118

I am an American living in Vietnam and I have recently gotten a refrigerator from Japan and it is rated for 100 vac, but the power here is 220 so I bought a voltage stabilizer it has a 1 kva output rating. Can you please tell me what the amperage is? I'm confused and without a working fridge.

1675

Why mostly the HV side of transformer has Delta?

3170

i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400

2080

can we use ZNyn11 transformer instead of Dyn11 transformer in distribution for effectively eliminating harmonics from the industrial loads.

4975

What are the types of control system?

1371

anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?

1833

What does a Bode plot tell you?

1255

Anyone who can recommend an equivalent to Envirotemp FR3 of Cooper?

1927

Please sent me some previous year question papers of BSNL-JTO telecom and RRB in ELectrical Engineering to varshashahi@yahoo.com

2028

What is marx circuit?

1084

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