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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is value of earth resistance required for substation and equipment earthing and what are the reference guidelines

Glenmark,

1745

What kind of Neutral CT can be placed in 11/0.433KV transformer to be used and what are its specification?

1851

Dear all,recently in our plant we installed a conveyor for this the motor ratings are 5 hp and Amps 7.39.Due to on urgent starting of conveyor we fix the DOL starter with range of 9-15 amps.give me suggestion regarding on this issue

1 2336

What are the questions asked in PRDC pool campus test?(bangalore)

PRDC,

1 4704

I am experienced with house and industrial wiring but I don't have any licence how can I apply an licence and which type of licence i can get i didn't complete deee just only experience

Future Electrical,

1590

what happend to DC shunt motor if its field winding insulation becomes slightly weak? will that motor can run on full load or not explain in detail. thanks

PCL,

1614

What is formula calculation size cable wire ?

1909

What is power in wattage of 8.5 TR AC

1612

How to test REF relay testing for LV panel as per Kahramaa standard?

4899

before transformer oil dielectric strenght tests are taken the oil should be allowed to settle to remove option 1 air bubbles 2 gasses 3 contamination 4 water

1630

What happened when voltage will half value of current ...

SCL,

1571

Why 11kv to be generated in generation station

TNEB Tamil Nadu Electricity Board,

1615

What do you mean by Stimulastion Test in Diesel Genarator / Why & when it's conducted ?

JLL,

1614

3phase motor can be used as a Prime mover for alternator.

1558

what is a speed of rotor when we give supply to stator of 50hz and as well as rotor of 60hz of an induction motor?????

1604


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Dear all i want to know SEWA Electrical Supervisor Licence test Previous Year Questions ? If any body know please send to me zohairaukllah@yahoo.com

996


How can calculate the earthing strip of Copper/GI for rating of 30kV,discharge current 10KA Lightning arrester.

2278


how choose conductor&depending upon load

1847


What is the principal of motor?

1068


A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram

2776


In 90 kva alternator that produce the output voltage is 115(p-n),200(p-p) at 1500 rpms means what ampere it produced ?

1995


what's the difference between abs/inc encoders. apart from the position remembrance what are all the other differences. and what's mean by grey code.

2039


Draw a SLD for main panel for school having connected load of 1200kw and emergency generator 200kw.also show the increase of additional load of chiller 225kw in the lv panel indicating meter postion size of transformer ,cables and capacitor bank.

937


Can anyone please give me the parameters , formula needed to calculate the circuit breakers for building services.Thanks

2094


Which test will be more severe for VCB?

2612


what is the safe meggar values for motor, transformer HT, LT and Cables? IF we want to replace I/C bay at our 220 kv substation which is of 140 mw load capacity bay to be replaced by 400 mw capacity bay.other than CT(1200/1) what are the other equipment i have to replace. why we generally use 3.5 core cable or in other word 1/2 core for neutral and also confirm me that in balance conditiob(3 phase)current in neutral will zero

2230


For an induction motor wat is the loading/unloading cycle duration or interms of L/UL ratio/ percentage?

2037


Explain Even and Odd signals?

1860


Explain the different methods used in the choice of rotor slots for reduction of harmonic torques in an induction motor.

1975


Please brief what is sinewave

2109