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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Write the formula for Fault MVA, Fault current, Base MVA.

2 25217

# 4 hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible my email id is sumit_lig189@yahoo.co.in

HPCL,

2003

In all the generators, the excitation supply is DC. What is the significance of DC excitation? What will happen if AC supply is given as excitation supply?

2 5020

if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .

BSNL,

1 2681

What is the Harmonics??????????

5 8938

where used impendence relay?

3 5810

What is SF6 Circuit Breaker?

Sodexo,

10 25407

i want prepare power grid exam what are book we want refer for electrical ?

5 14781

how can we measure 220kv or more than these voltages ...?and also how can we conform whether we r getting 220kv from generating stations throuth the h v transmission lines?

1 3512

if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .

BSNL,

1961

In all the generators, the excitation supply is DC. What is the significance of DC excitation? What will happen if AC supply is given as excitation supply?

8 14534

How shall i design a liquid rotor starter

2913

what topics we have to concentrate for power grid et.written test.and tell what to read for english synonyms and antonyms.

1953

hello freinds what is advantage and disadvantage of plc again dcs?

2 6809

how can we can take BDV test in transformer?

5 47484


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

What are chief characteristics of state-space method and its techniques ?

2156


what is feed back and what are feed back amplifiers?

1075


what purose of the double circuit transmission line phase of the line phase changed for circuit-1 for Circuit-2 R-Y-B B-Y-R

2286


Please define ohm’s law for a.c (alternating current)?

1074


What are the disadvantages of autotransformer?

1118


Is there any rule to select the voltage of motor based on KW rating? What is the rating above which lt motor becomes the HT motor?.

1720


Mention the disadvantages of low power factor?

1130


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

808


what is the power factor used by the PHCN in nigeria? 2. what is the difference between an alternator and generator. 3. Generation of poweris in KV but how is transmission is in MW. 4.If the transmission of power is 20,000MW how can it be increaesed to 80,000MW

8617


what is thresold of perception

2076


What are electric motors?

1158


if in 3-phase system voltage=440V,frequency=60Hz, current=400A. then if it is single phase then current=? and if it is single phasing then current=?

2559


how external lighting design? please give examples?

1887


Any one can explaination about calibration with rotating sub standards?

2073


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

1850