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Electrical Engineering Interview Questions

How to parallel a alternator without using synchro scope or lamp methods

Ofer,

1554

what type of motor used to move a 1 ton gate? and relate ratings with load.

875

What is the working principle of servo motor? And explain it.

912

What fomula is used to calculate: 1. rated frequency withstand voltage, and 2. rated lightning impulse withstand voltage.

804

What are the roles and responsibilities of electrical engineer in cement plant

1006

If the secondary winding will be open in current transformer, how to damage the insulators

1928

What is the arc. I saw word arc in between sf6 & vcb brakers

1644

How to calculate the fuel consumption for 600kva DG genset which connecting with 25%load?

Debbas, GE, TCS,

1152

If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.

1307

Can we check ELCB constantly from R1 to R8 phase in 1 no DB?

787

What the full form of KVARs

1878

What are the safeties in elevators?what is the use of governor in elevator?

JLL,

2358

Explain what happens to the speed of a series motor as the load decreases

3151

Sir we are using 250 kva DG its Diesel consumption 25 lits / hrs maximum load 160 kva now how to calculate units/ litres

1403

for 24000kv transformer what is the value earthing resistence?

1068

Un-Answered Questions { Electrical Engineering }

which type of effect of turbine and generator reverse power protection ?

3278

i am completed diploma in ece,and working in ht and lt lines.so is elligible diploma in ece for get electrical C Licence?plse give ur opinion?

765

1358

what about the power of wattmeter at starting and loding?

1195

What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?

740

why is the conservator tank painted white on the transformer

1759

What is expention fastener (Fan)

1076

what is the IEC standard for Power Cable installation in onshore (like in direct buried ground or above groung)

1600

what is the interrelation between voltage current torgue speed and magnetic flux in case of different types of electric motors

1059

Describe the colour rendering properties of i) tungsten filament lamps ii) tubular fluorescent lamp

2118

we have 2.2kw,Y,3000rpm motor but 6leads found in TB what happen if we connect in delta?

753

Factory acceptance test. FAT. For 132 kv transmisstion towers what is that meaning and what are the tests commonly companies perform now days.

680

HELLO SIR, IAM PREPARING HPCL EXAMS. SO PLS SEND MATERIAL OF HPCL ELECTRICAL ENG..TO VIJAY_8888@YMAIL.COM

972

if i am in front of transmission line how to know that current direction without any equipment

799

What does the term power factor shows?

161