Electrical Engineering Interview Questions
Questions Answers Views Company eMail

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

1043

what is difference between line differential and transformer differential?

L&T,

1164

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 1699

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

Cosma,

955

why a single phase induction motor has poor power factor

1086

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

Private,

2092

What is the relation between frequency and motor rpm?

1256

why burdens of VTs is more than CTs?

1235

what is the impedence

Al-Othman,

1 1818

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

Voltamp,

1311

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

1172

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

992

what is the meaning of osr in transformer.

1473

What is different between Circuit breaker and Isolater?

1144

why genarator genarating voltage 11 KV?

1213


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Un-Answered Questions { Electrical Engineering }

Is it possible to download the Siemens Selection Chart(TYPE 2 coordination) for 1) fuseless selection 2)Fuse selection

7586


Tell me about ur past electrical maintanence job

1354


1)Explain why the cradle guard is used on railway crossing in overhead line construction?

4215


How do we calculate transformer oil in liter from the rating of the transformer.

1111


What is the function of under voltage release ?

923






draw the full wave and half wave circuit of 3 phase system and inverter circuit used in ups 

1856


why does rotor rotets?

1969


Diagram and details of polarity test for Current Transformer 11kv 400/200/100/1A

2478


What happens if i apply 500V to 440V rotary Switch ?

1318


what is magnetizing current test in power transformer

2102


Define gain margin?

638


when we have to purchase the transformer by own i.e how much load will preferred HT connection?

1134


we use 400/5A ct and 35/roor3KV,/0.1/root3KV,0.1/root3KV pt ratio. What is the multiple factor of this meter.

1504


What conditions are required for transformer to operate at low frequencies ?

1442


3Cx240 & 3Cx300 sqmm Al. cable from lv side. What is the calculation for this cable??

812