Electrical Engineering Interview Questions
Questions Answers Views Company eMail

if sf6 gas low in gis what will happen

354

How to test lightning Arrester?

369

During FEED, you will have all the information with regards to cable. How will you calculate the MTO for MV and LV Cables? what are your considerations?

2001

Why need 3phase machine double earthing?

1302

what are the deffects for failure of PLC?

1544

How to calculate Number of Earthing Pits....???

1076

why transformer ratings in kva? & DG ratings in kva? & Motor ratings in kw/HP?

1085

how to calculate units consumption for a 12 hp motor /hr.

1009

what is the best transformer oil breakdown voltage?

685

what is circuit breaker in transfomer and where it used

708


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Un-Answered Questions { Electrical Engineering }

As we use capacitor bank in 3ph ckt to improve PF, can we use capacitor in single ph domestric use, in house we have Fan,Mixer,electric cooker,iron,tube choke they also lag the system,because it is inductive load. if it is possible to improve PF of single ph system-- if yes- type of capacitor to be used,connection diagram, working in detail. if no-- list it.

1245


advantages and disadvantages of inverse definite minimum time RELAY

1030


i installed 100kva ups. what KVA genset they should provid in input side? plz any update formula or ans with reason.

1824


What is the breaking capacity of transformer and how can we calculate the breaking capacity of tranformer

1218


If any one's require of phoenix contact like( relay , termilnal block , surge protection device ) , product please contect me 09878206357 chetan verma

1601






WHAT ARE THE EFFECTS OF SERIES RESONANCE AND PARALLEL RESONANCE ON THE CIRCUITS PARAMETERS?

1463


How to calculate no of EARTH PIT? Describe the formula as per IS standard?

1549


A 50Hz,4-pole,3-phase,star-connected synchronous motor has a synchronous reactance of 12ohmsper phase and negligible armature resistances.the excitation is such as to give an open-circuit voltage of 13.2kilovolt.the motor is connected to 115kilovolt, 50hertz supplying. what maximum load can be the motor torque,line current and power factor?

1858


why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?

2432


working principle of AC Servo Motor with its construction

8295


How many turns are there in primary winding? (In Transformer)

1185


EXPLAIN THE TERMS "INTEREST AND DEPRECIATION" AS APPLIED TO ECONOMICS OF POWER GENERATION.

1739


explain transformer ct connection?

1580


what is the difference between 2 way and 4 pole selector switch???

1841


Can any answer me ,What will be the range of C.T coil for L&T energy meter EM301 used for 180 kva DG set

1738