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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why wound rotor is star-connected?

4 7971

why any Elelctricity board insist not to change the buren of their metering CTs or PTs for metering purpose? as a example elect. board not accepted that any customer change their metering CT or PT core burden from 5VA to 15VA.. why?

1 4033

for leading power factor penalty by SEB why

2 6839

which gas is filled in CFL

Lumax,

7 41072

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2094

Why voltge arev transformed in to 132KV/66/KV/33KV like that

HAL,

5 9533

how we identify AC or DC machine at the time of seeing, with out use of name plate?

4 13266

How can identify meter AC or DC without use of symbel?

4 8702

What is transister , thermister , thyrister? what is its function? where this using?

1 5023

why do we use 25kv supply for traction purpose

1 4353

why does not tester light up when it is touched to neutral of 3 pin socket.

4 20054

why the altrnator(AVR) not showing the any voltage after making the new winding and insulation?

Avon,

1 3475

How to connected to energy meter, pt, ct, ammeter, voltmeter and selector switch.

Omplas,

1 7358

which calss ct's,pt', use protection,meatering and others

1 3879

how to work droop ct in generating station

2689


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

What is pole of the system?

1151


WHAT SHOULD BE THE BEST CURRENT RATINGS (PRIMARY / SECONDARY)FOR A CT INSTALLED AT THE INCOMING 11KV PANE? WILL IT BE CALCULATED ON THE BASES OF MAXIMUM DEMANT VALUE OR ON SUM OF ALL TRANSFORMER'S KVA? NOMALLY MAX DEMAND REPRESENT THE MAXIMUM OPERATING LOAD OF THE PLANT AND TOTAL KVA OF (SAY 5 NUMBERS TRANSFORMERS) REPRESENT THE CONNECTED LOAD. WHICH i.e. MAX DEMAND KVA OR CONNECTED KVA ARE BETTER TO USE FOR CT CURRENT CALCULATION? PLEASE ANSWER.

1920


defination of transistor controlled series capacitor

2637


What does the term “voltage regulation” means?

1098


why use phase displacement in transformer.and effect of phase displacement on transformer

2872


what is doid

2816


WHAT IS MEANT BY DERATING OF THYRISTOR?

2965


what are symmetrical and non symmetrical components in electrical installation.

2080


(In MEP services) HVAC in AC Plant room what else can we provide if the chiller is not considered?

2043


how to find out cable size if load is 2800 watts, 230 volts AC supply and load distance is 1800 meters

1610


Explain the difference between verilog task and verilog function?

1338


WE ARE PLACE A NEW 75 KW MOTOR FOR JPF.IT IS CONNECTED IN M.C.C. WHEN WE ARE STARTING M.C.C.INCOMER IS TRIPPED.THEN WE ARE CONNECTED IN P.C.C WITH A MM30 RELAY PROTECTION THEN WE ARE STARTED MOTOR WILL RUN SMOOTHLY.

2071


What is contract demand in solar system?

1703


why do we carry out winding resistance test?

2285


which are the criterias needed to select the kind of neutral earthing(solid earthing,resistance earthing,etc.) at various voltage levels in electrical distribution?

1982