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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

sir can you operated Transformer on frequency from that for which is design?

Kirloskar,

1 4141

sir what is the minimun earth resistance value of an industial bit and grid bit ? and Why?

Kirloskar,

1 5211

what is difference between power & distrubution transformer ?

3 6710

how did the differential relay work to protect the power transformer

4 10977

why do we have 230v a.c. as general voltage for domestic supply rather than others?

2 6313

In transmission line the line power loss only accured at resistance the inductance and capacitance wont consume power is it correct?

2 4484

What are the types of AMF(auto main failure) panel.

1 4242

sir, Is their any measuring unit of knoking? please explian?

Kirloskar,

1845

sir, why alternator output is connected to delta side in to generating transformer? any reasion?

Kirloskar,

3 7419

sir, Two different rating of generator going to connect parallel, can it set same DROOP or different. Why? Please explain

Kirloskar,

2 6955

Sir, why generating power plant operating at above 0.9 lag? detail explaination?

Kirloskar, L&T,

1 5516

generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...

1882

why grid frequency varry time to time?

2 5131

whats the reletion betweet flow,pressure,head,rpm and motor rating?

1 4965

whatis the test procedure for lightning arrester which was installed one year back. i want check it whether it is working or not.

1 4176


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Is it required to use Automatic transfer Switch in L&T panel board if we use AMF panel with DG set? How the single line diagram will be? Please forward the material to sreenu_207@yahoo.co.in

4678


In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?

3077


Classify milling machines.

1088


How are load losses and no-load losses measured at site in a DG set?

1713


What is Surge Capacitor? Why it is use in Generator Circuit Breaker?

5090


we have an energy meter in a capacitor bank panel, So should we consider it's readings as energy consumption on daily basis. (when capacitor bank doesn't have any energy losses)

2352


If a rotary UPS is in line through grid power; What would be the impact on Power Factor if the load through rotary ups is 25% , 50% , 75% & 100%. Will the power factor reduce with less load?

1841


what is allowable ac mixing in dc

2051


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

2019


When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number

2115


What is depreciation factor?

2224


how many types control panel of a 132/33 kv substation

2604


hello friends.. I have a doubt regarding the operation of dc machines.. I studied in a text book that a dc machine can be used as a generator and as a motor.. is this possible? If so,please send me the info about this topic.. you can also send your info to my mail.

1998


how slip power recovery system work

2984


what is the earth current,reverse power,electrical trip generator short circuit,low voltage, high voltage please discribe me

2075