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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is center gravity load in substation?

2424

why transformer neutral and CT Secondary neutral is connected to earth?

NCC,

3 4674

What is the main difference between generator and alternator

4 5125

How to calculate current carrying capacity of copper conductor _ such as cable size 25sq mm,50 sq mm, 75 sq mm, 100 sq mm

2 4505

What is the difference between diesel generator engine with and without turbo charger with the same capacity?

1687

what is PDU in transformer?? which company manufacture??

1900

a 440v 60hz 03 phase 100kw generator can deliver how much power in kw for 220v 60hz 01 phase load?

1 2372

can we use the 110 v primary Tr 240 v secondary step up Transformer as reverse 240 pri 110 sec

Hyundai,

3 4335

Sir, My doubt on cable sizing calculation, Load:74 KW calculated cable 1 run 50mm2. Now client asking us to reduce cable size by increasing runs. Sir, My question now when my mind strikes with 2 options 1) Divide load 74/2 = 36 and calculate cable for 36+36 making it 2 runs or 2) Simply i can divide 50mm2 /2 ie. 2 runs of 25mm2 Please suggest me sir

1939

how ups works ? various parts of ups and working principle

Serco,

2009

Explain Power factor in simple words

ETO,

1 4174

Describe Non I.S. Earth System and why is it used?

KPJV,

1788

Why lose 1 phase voltage in 33kv to 415v stepdown transformer

1742

why wire sizes are 3/29 or 7/29 and why not wire sizes are 2/29 or 6/29?

OGDCL,

5151

why generation voltages are 6.6kv or 11kv and why not some one give that stander that generation voltages are 5kv or 12kv?

AES,

1 4073


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Please tell me in DETAIL about the following 3 types of fuses or recommend me a good power system protection book or a website link ? 1.Dropout Fuse 2.Striker Fuse 3.Empulsive fuse (not sure if its impulsive or explosion fuse , sorry)

2105


The power supplied to a 50mH inductor from a 120V, 60Hz source will be

4793


i need project topics along with circuit diagram in the electrical and electronics engg and also some websites regarding projets.

2086


how does the rotating m.m.f is produced in the 3-phase induction motor and how the poles are created in 3-phase induction motor ?

2645


33kv substation lay out details & line to line & line to earth measurements

2621


what is load despatching

2226


What is the use of iron core in a transformer?

1136


Difference between HRG and NGR. Are they both the same thing

4291


help me with the question that might be ask on the interview for technical position

2291


How to calculate pitch, gauge of winding wire, and No. of turns for 30HP, 3 phase, 4 poles 50Hz, 380V induction motors

1945


what is the effect of back reactive power on the generator ?

2203


How to calculate cable size by using load.?? Any formula...

1385


Sir, My doubt on cable sizing calculation, Load:74 KW calculated cable 1 run 50mm2. Now client asking us to reduce cable size by increasing runs. Sir, My question now when my mind strikes with 2 options 1) Divide load 74/2 = 36 and calculate cable for 36+36 making it 2 runs or 2) Simply i can divide 50mm2 /2 ie. 2 runs of 25mm2 Please suggest me sir

1939


Phase control and integral control are used for?

2330


what is the purpose of shading ring or shading coil in electrical equipments.

4479