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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Dear Sir/Madam, I have one questions we have three steam turbines and one Gas turbine and our industry linked with the public network, we have protection system one of the protection is reverse power we can export just four MW only i would like to ask about how to calculate the reverse power. Thank you in advance best regards

2096

How many earthings are provided for a 250KVA distribution transformer?

9 18220

WHY LATCHING CURRENT IS GREATER THATN HOLDING CURRENT?

1 8105

WHAT IS MEANT BY DERATING OF THYRISTOR?

TATA, Trane,

2965

Why we use neutral cable just half from phase cable.Tell me briefly,please.

4 25386

how fan speed decrease or increase by using regulator? thank you

3 7398

what is the difference between metalhalide and mercury vapour lamp

1 4405

what is meant by Ac & DC drives where its useful ? how its functioning ?

3 8382

in pf lagging means current decrease by increasing voltage is correct or not ? reason ?

3 6298

WHY ARMAD USE IN CABLE

4 11554

WHAT IS THE difference betwwen LT CABLE AND CONTROL CABLE

5 8848

how to commissioning the genset with amf panel?

Cummins,

2405

what is the roll of power factor in induction motor.

Hindalco,

3 8064

how many by pass system in online UPS.

4 6787

What is the main cause of magnetism?

2092


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

what is the difference between RMS & TRUE RMS VOLTAGE

2953


How to set a Zone 1 distance relay for distribution feeder?

2022


Can any one give an explanation about rating factors of cable? if we are laying the cable on the air with an temp 15 degree then rating factors will be 1.15 and if we are laying the cable on the air an temp 60 degree then rating factor will be 0.76 please describe it and what is the difference between rating factor and derating factor?

1503


How cable from Kit-Kat to main switch, from starter to motor are designed?

2112


what is mean by restructuring power system?

2068


We have 750KVA DG set, we want to introduce REF relay with 1250/1A,CL PS,Current transformers.The lead distance of 2.5mm copper flexible cable from CT to relay is around 5mtrs.We would like to know the knee point votage(VK) & IM calculion for CT's

1922


What is relation between mu(nought) and epsilon(nought)?

1536


1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to confirm its base capacity?

1978


what is maxemo work permit procedure

2201


Vibromotor 252MV 1/4HP2P..what is mean by 252MV?

1962


Consider three heater bank connected in 3 phase star with neutral.Each heater bank connected in each phase.So each phase get 230 volts supply.my question is,during balance condition, current flow in neutral or Not

1641


What do you mean by lighting transformer?

1056


what is the grounding Calculation formula? spouse i want to provide grounding to 3phase 18kw motor or i want to provide ground to 3phase 10kva dry type transformere or you give me any exemple...... Thanks.

1870


Explain the working principle of Synchronous Generator and Assynchronous generator?

2246


According to IEC60034-14, When the vibration monitoring system required for motor Bearing. above which KW, it is required? and for what type of bearing the vibration probe is provided.

4172