Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How much width of the land shall have to be left below the EHT line of 440 kv as per the rule. i am told that a corridor of 35 M width is to be left free below 220 kv line. please confirm

1 2705

what is the purpose of high speed earth switch in gas insulated substat

ABB,

2529

if we have a industrial load of 400 kilowatts with 415 volt AC then how much total harmonic distortion (thd%) should be acceptable for steady power system.

1567

How Many Safety of Transformer

2 5491

How many safety of Disel Generator

Sail,

5 5161

how to store the thunder power?

Voltech,

1 3750

Dear Sir / Madam, Actually we requied 64 A MCB, But i have 32 A MCB = 2 No's this two i have to make series connection and we usw any place? isit possible or not......

Hindustan Unilever Limited,

4 6105

where lt & ht capacitor used

1753

when a machine act as genartor and as motor?

2 3138

if we install two earth pits with a clear space of 5m without any interconnection,by checking the digital multimeter will it show continuity between earth pits? If so what would be the approx. value

1459

how to calculate the megger values for motors and cables?

Adhunik,

2 7090

insulators advantage in transformer yard?

1 2397

What is phase angle? and what is importance to measure it?

2 3945

circuit diagram of trip circuit supervision relay

1582

when generator short circuit condition, the current how dissipates. or at short circuit voltage not available then current how can flow?

Power Grid,

1745


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Un-Answered Questions { Electrical Engineering }

what ispositive, negative, zero sequence impedence?

1573


How we calculate the Multiplying Factor of Kwh meter for 3 phase alternator.

1406


How relay works, reverse relay, master relay, os relay, earth fault relay and what is its setting point

1192


how are reversing the direction of rotation of dc motor

1254


Can double compression glands be used with regular cables?

1639






What do you mean by screen of power cables?

1274


In what condition the HT fuse breakes?

1476


What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage

5582


How to select HT/MV cable size ?

1987


we all know voltage is a force(emf), and the force always devides if 2 or more than2 loads are there but why does the voltage remains same is parallel, it must devide na ???

1502


RESPECCTED SIR/MADAM- I AM PRERING FOR SECTION ENGINEER (ELECTRICAL) RRB CHANDIGARH PLEASE SEND ME SOME PREVIOUS YEAR QUESTION PAPER OR MODEL PAPER.MY EXAM IS ON (30- NOVEMBER 2008).I AM VERY THANKFUL TO YOU. FROM- HARENDRA SINGH YADAV

1603


CT Ratio of a energy meter connection is Red Phase : 100/5A, yello Phase : 50/5A & Blue phase : 100/5 A what is the overall Multiplication factor

1192


Pleae send me last 5 years of Question book about RRB chennai.

1802


What is voltage ratio of a transformer?

627


how brushed dc motor operating ?

1411