Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the 415V AC Soft starter? Explain with an example?

TCS,

1 2566

Explain types soft starters?

TCS, Siemens,

7 14064

TELL ME, WHERE SHALL I GET BASIC ELECTRICAL ENGINEERING BOOKS IN INTERNET?IT SHOULD CONTAIN ALL DEFINITIONS?

TCS,

1138




Why DC current is not used in transformer?

JK Paper, TCS,

20 26259

what u meant of power plant?

5 4984

if 50hz transformer is required to be run on 50% frequency what needs to be done???????????

century,

6 6363

How Negative Phase Sequence Relay works in case of Synchronous Motor?

L&T,

4 26509

How we detect the leakage current of 11 KV H.T. motors and waht is the maximim limit?

Ambuja, Pristine,

3 6090




HI SIR, AM PREPARING FOR RRB FOR SECTION ENGINEER POST. PLZ SEND ME THE PREVIOUS QUESTION PAPERS AND HELP ME. I HAVE NO ENOUGH TIME MY EXAM DATE IS 22ND JUNE.... MY EMAIL ID IS nalla.amarnath@gmail.com

618

Slow acting fuses are most often used for which application a) Lighting circuit b) heating circuit c) Motor D) Radar circuit

1 2018

What are the consequences in using existing step up transformer (primary 6.6kv/175A, secondary 480v/2405A) for step down transformer to have a 6.6kv output?

1 1839

what is neutral grounding? why is it required? what is neutral grounding resistor and how is its value calculated??

ONGC, NTPC,

11 54431

Why we are using Ohm's law? where it is applicable? explain.

TCS, Pyramid Saimira,

10 13543

WHAT IS BASICS TO SELECTION OF 11 kv Trasformer, send any calculation sheet for selection of transformer

NBCC,

3 6459

Does frequency change with increasing voltage i.e 220v to 11kv? explain if not?

6 6462


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Un-Answered Questions { Electrical Engineering }

what is the ATS .And how it works.

188


Can we put 3 layers of cable tray while installing tray

1086


what is the minimum recommended leakage current of an earthed cable connected to the body or skid of an alternator

781


How I can Compare 120v/60Hz versus 220v/50Hz ? Please tell me both advantage and disadvantage ......

733


what is the use of Auto re-closer?

803






In a power conditoining unit (inverter) of a solar plant when we measure the d.c. current fed by different strings of solar plates to inverter, the current in the negative wire is less almost by 1 ampere to the current in its positive wire say current in positive wire 5 A , then current in negative wire of the same string is 4 A. Since the current entering should be equal to current leaving then why the current is noticably less in negative wire.

238


if voltage bt phase & nutral is 38v in a panel board . whats the root cause.

960


how desiel generate sart fail of eb?

849


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

759


the typical output of a solar cell is........

1028


what is cause of static electricity? I experience shock when i touch metal equipment in a room ,furher check shows earth leakage showing 80ma at the DB near to the 400 MCCB?

674


How to calculate the no of Ceiling fan (1200mm sweep) per unit area?

523


in my working site. momentary jerck in electrical supply ocurred frequently which cause of multiple losses in our electrical equipements. how can we protect our electrical machines and equipements in this situation.

1460


what are the specifications we must look at to select a relay for any capacity motor?

812


the grid connection required for a 50 MegaWatt fotovoltaic powerplant is higher or lower than 35kv (high or medium tension)?

591