Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is max. continous current of LT side of distribtion transformers? ie for25kVA, 63kVA, 100kVA, 200kVA etc

2 5497

What are factors to be considered while we selecting the Core Balance Current Transformer for Earth fault protection

1419

Can we connect CBCT in the Busduct

1 3787

why motors are rated in HP?

HCL, ncpl,

3 5790

25 kvar capacitor , how much current ? For 25 KVAR--Capacitor I = ?

3 8559

what is 33 /11kv transformer bdv

NMDC, TPPL,

8 27548

what is a 3 phase power formula ?

5 6110

An engineer measures the direct current resistance of a transformer using ohm meter. When he/she takes out one of the leads of the meter, spark comes.. Why ?? This effect is known as...

Saint Gobain,

1 8014

What is Neutral Transformer? what is the use of this?

4 5248

Is neutral transformer can be called as control transformer?

1508

Hello Guys !! i want to rrb section engineer electrical(signal) previous model papers? any body help me?

1412

can any tell me why slope 40% and 80% is calculated in differential protection?

1427

what is the difference b/w conductor and semicoductor

1 2820

What is the Powar consumption of fan low speed to full speed? is it same ?

3 5549

What is transient Phenomenon?

1764


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

hi guys please tell me the procedure for mesuring the coil resistance of 3ph induction motor?

1417


we are having 110 Kv,250mA Electrostatic precipitators for coal fired boilers. what will be static voltage and current after discharge and what time it will remain before earthing?

1462


What is the Diff. btw Manule Pull Station & Manule Abort Station Switches used in FM200 System??

1379


What is effect on in zone and out zone fault if CT chosen for phase side is Vk/2<5mA and Neutral side is Vk/2<15mA on REF protection of Transformer

1891


Why is the air gap between the pole pieces and the armature kept very small?

880






WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING

1329


What is current divider rule (cdr)?

817


What is difference and reason b/w -48V BTS system and 24 V BTS system. Plzzzzzzzzz tel me.

1711


How 3 phase invertor works?

1486


I am having a 42KW 3 phase electrical heating furnace, heating element is 80/20 nichrome material, my connections is made in such a way that 2 star connection compromising 2 coils per phase so totally 12 coils, shall if i use it unbalanced star condition (instead of 2 group of 3 phase or 1 group of 3 phase, connecting 4 phases of 5 phases) what will be the consequences and is it acceptable?

1248


is it possible to start a motor in felid connected to a remote mcc

1400


Is it required to lay 2 runs of GI wires along with armoured cables from one power DB Machines of higher rating?

1544


bsnl tta exam question

1448


why and how current drawn by battery charger depends upon the altitude where it is located?

1557


How to calculate the sag of OPGW during stringing???

2128