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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is rated current and operating current?

 1 4132

how u select control transformer for a mccb panels or any panels?for expample we hav 440 volts maim supply and control volts is 230v?

 1677

How to run 1ph motor(230 VOLTS its full load amps is 4.5 ampa))with 480 volts main(we didn hav neutral)Thn we go for step down transformer.Our load 10 amps,so we conisder this amps in primary are secondary side?

 1 2846

140 is load amps for a equipments and what ratio of CT requied for installimg ammeter to amps montering purpose?

 1 3413

what difference between thermal and bi-metal over load relay?

 2 7710

How we calculate the spacing between the conductors in 11,33KV lines?

NHPC,

3 12574

If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?

Nalco, NTPC,

3957

how we sesign the transformer give some specifion regarding design of transformers

1468

To test Transformer we give HT side 440V to see wheather that it is producing 17.6V on LT to verify Voltage ratio is correct or not but when we give the 440V voltage to LT side then what will happen to HT voltage ?

Aditya Birla,

3 6731

I WANT BHEL PREVIOUS QUESTION

Bhel,

1833

How to calculate load taken by a cable?

 3 4923

how to calculate current and voltage in a same circuit?

 1676

in 33KV or 66KV system which connection is aviable on high voltage transformer primary delta or star ?

 3 5112

What is VFD, and how its work

 5 7254

What different between kw and kva. why maser AC in kva.

 3 4437

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Un-Answered Questions { Electrical Engineering }

PLEASE ANYBODY HAVE ELECTRICAL CIRCUIT DIAGRAM FOR CHMER PULSE CD 60M SPARKING MACHINE.PLEASE MAIL ME SUPRIYAAYYAPPAN@YAHOO.CO.IN.

2347

What is EMC filter in VVVF Drive ?

2128

how i chosse capacitor bank if my energy meter is 48 kvr? tell me capacitor bank chossen formula?

1918

Comparision of Air break circuit breaker, SF6 Circuit breaker and vacuum circuit breaker.

1932

List the power rating of any 5 important electrical appliances used in houses.

1569




What is warm / cold start of HT motors. How many warm start & cold start are possible in a day?

1567

iam preparing for rrb section engineer post in electrical branch.suggest the right textbook for my reference.fromwhere i will get the previous q.papers?

1730

how to get electrical supervisour certificate in gujarat

1525

I want definition for ABT Meter (Availability Based tariff) ?

1522

what is difference between 5A and 100A CT constructional wise and operation?

2826

What is depreciation factor?

1766

In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.

1849

CAN U PLEASE TELL ME SOME G.D TOPICS FOR APGENCO INTERVIEW&G.D

1943

What is resistance of 50meters, 16sq.mm, single core copper cable?

1443

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

1684

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