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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the function of 1 phase preventer?

ABB, Electrical,

3 24179

How to calculate the slip ring induction motor rotor current and voltage.

Bhel,

1 21647

which sub is most horrible in four yr degree

2 2880

what's the requirement of Dy11d0 connection of 3 phase transformer?what's use of it?

Thermal Systems,

6823

We have studied about many techniques for finding the stability of system, ROOT LOCUS, ROUTH, BODE PLOT, POLER PLOT etc. In these which is used where. what are the difference among them... PLZ tell me.......

MSEB,

1508

What is the work of IGBT in ups?

2 7930

Why Ferranti effect is occoured in leading power factor load in a overhead transmission line?

1 4252

Why ferranti effect occurred in leading p.f load?

1 2883

What is VCC?

1 1835

why the transformer neutral give to the earth ?

Jindal, JLL,

2 3117

This is reqd for a 1MW Solar power plant..We have 2DC outputs from the solar panels Connected to 2INVERTOR panels.. Output from invertor is 3ph,280v,500kva,50hz.These are connected to individual ACB.This has to be stepped up to 11KV ,1250KVA SYSTEM.Now can I use (1) one more ACBTO GIVE A COMBINED OUTPUT OF 1000KVA,280V & STEP UP THE OUTPUT BY USING a single two winding 3 ph transformer 11kv/1250kva. or (2)use the two outputs and connect to one three winding transformer of above rating..Pls suggestwith details.

1836

Why we are putting off the APFC(automatic power factor control) panel while the generator is running?

National Steel,

4 9209

WHICH TYPE OF TRANSFORMER IS USED IN POWER TRANSMISSION BASED ON TRANSFORMER CONNECTION ON PRIMARY AND SECONDARY SIDE

3 4150

Can We Apply DC POWER To Transformer???? And Why????

4 4476

how i caculate the cable size for power factor correction unit for example 300kvar

1 2502


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Un-Answered Questions { Electrical Engineering }

Can anyone explain me about the capacitor calculation

1470


How to design the no. of ceiling fans required in 5mtr X 10 mtr X 3 Mtr hight room?

1401


stand by earth fault protection (51G) for transformer rating 2000 kVA,Dyn11,33/0.400 V. LV NCT ratio and necessary resistor and metrosil values how to calculate

1848


What is the effect on 3phase induction motor if current setting knob of DOL kept at minimum current?

2981


draw the block diagram of fire alarm?

4790






what is laser diodes?

539


What is notching in dc machine?

1266


what is the control circuit for operating the clean room air shower

1520


What are the advantages of nichols chart?

581


Pl.brief me about Electrical power distribution system from Main generating station to Industry.What is the use of in between station.

1407


We are preparing another project which involves Waste heat recovery from a 1 MW GE Engine. The Engine in particular gives out flue gas at 487Deg C with a flow rate of 5650 kg/hour and this can be cooled to 180 Deg C. This gives a thermal output of ~ 594 KW that is available for input to VAM via heat exchanger / boiler. Additionally 581 KW will be available from engine jacket water (temperature profile 80/ 80 Deg C and a flow rate of 50m3/hr) Our estimation is that 300 TR of cooling is possible with a suitable VAM machine(s). Please advise what is the most suitable arrangement with maximum TR and min Capital expenditure. plz reply me as early as possible

1313


why T/F winding temp measurement cts are odd secondary current ie,109A/1.2A/1.4A?

1147


what is efficient motors and how it is different from normal induction motors

1266


WHAT IS MEANT BY TV TERMINAL IN 500MVA TRANSFORMER?

1516


what's the requirement of Dy11d0 connection of 3 phase transformer?what's use of it?

6823