Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

What are the electrical engineer roles and responsibilities in chemical plant?

1750

what is difference between line differential and transformer differential?

L&T,

1797

As we know multiplicity factor derivation equation is as below MF = main c t ratio / main p t ratio * meter c t ratio / meter p t ratio * meter dial constant Where in digital meters for HT kwh import export now a days meter constant are calibrated already which is 1 So my question is For HT 11kv 110 v line values are as below Main c t and p t ratio are 11000 v and 110 v and 20/5 means 20 amp and 5 amp Now meter values are 11000/√3/110√3 and primary and secondary amp are displayed as -/5 amp on kwh meter so what will be the MF for this meter ?

NEPC,

1 2670

why cable i burning without tripping. how can protect led street lights

Cosma,

1670

why a single phase induction motor has poor power factor

1813

why ht cable end termination don't have a gland?

Private,

3006

What is the relation between frequency and motor rpm?

1903

why burdens of VTs is more than CTs?

1869

what is the impedence

Al-Othman,

1 3553

what is difference between 9kv 5ka surge arrester and 9kv 10ka surge arrester.

Voltamp,

1913

what is the use of current transformer in power transformer secondary side.?its connectyed in WTI

1793

Would you recommend to replace all oil filled cables with xlpe cable for hv transmission with the current technolgy for xlpe cable?

1550

what is the meaning of osr in transformer.

2236

What is different between Circuit breaker and Isolater?

1887

why genarator genarating voltage 11 KV?

1841

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Un-Answered Questions { Electrical Engineering }

why the voltage and current in a long transmission line are called travelling wave?

2285

how we can adjust for three phase motor cold stall time ,hot stall time and thermal register set up?

2930

When will you multiply and devide with derating factors to the actual value while sizing the cable?

1995

What will be the current drawn by HT motor, if low voltage is applied.. any formula to calculate the LT amps of HT motor.?

1512

Is there any question in the name of Static Switch in UPS??

2042

We need to current density & short circuit calculation at 65kA for aluminium & copper busbar.

1807

diameter of cable and core is doubled then the value of capacitance is

4383

how brushed dc motor operating ?

1942

what is the formula for computing cable tray size & capacity

2223

What is difference between Sample test and Routine test in safety standard?

1991

armature winding of dc machine produce alternating emf then it convert in to dc by using commutator.But only we consider armature resistance why don't we consider inductive reactane effect?

2120

upto how much low RPM we will run the commercial motor which is run through VFD without any problem occurs in motor.Motor rating Duty is S1 & RPM is 1400.

2213

what is acceptable leakage current for 33kv cable while doing high voltage test for cable? how to calaulate the leakage current for 33kv or any rated cable?

4131

There are different classes of protections in power plants.class a,b,c are clear..is there any class d and e r there..and elaborate class b protection.

2154

Give accurate definitions for these electric terms: Inductor Inductance Inductive Induction Reactance Reactive Esam Baraka ٢١ ساعة

1456

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