Electrical Engineering Interview Questions

What is the scale analysis for condensor of HVAC system

2847

ANY ONE TELL ME ABOUT generator synchronization panel panel to synchronise 3 gen of 250kva both automatic and manual. 2 gen output vol 415 3ph, 1 gen output vol 400 3ph SEND THE DETAILS DIAGRAM ON THIS EMAIL ADDRESS ayazleo@hotmail.com as soon as possilble best ragrds electrical engineer ayaz mahmood SAUDI TECH

2931

How to select the rating of a CT used for REF protection. The rating can be of equal rating of Phase current or neutral current rating

2970

what is the problem of generator over voltage.?except automatic voltage regulator card

2211

what is form factor

2844

what is the range of using dol starter & star delta starter.

32605

what is amf panel & how it is working

ATS,

38475

tell me working of air circuit braker.

3121

what is the working of ups.

6528

what is working of no & nc.

26500

what is the working of vfd drives.

4771

what is the material use in bus bar & why.

3364

when motor taking high amp what happen.

9147

what is the highest transmission voltage in India till now?

42802

What happen if we have run 415 V,50Hz designed motor at on 480V,60HZ

11209

Un-Answered Questions { Electrical Engineering }

I am an American living in Vietnam and I have recently gotten a refrigerator from Japan and it is rated for 100 vac, but the power here is 220 so I bought a voltage stabilizer it has a 1 kva output rating. Can you please tell me what the amperage is? I'm confused and without a working fridge.

502

What size cable (based on voltage drop) is required to supply a 40 A three phase boiler if the wiring system is 75V single insulated cables installed in non-metallic rigid conduit 56m from the main switchboard? Voltage drop in the consumer's mains is 8V.

716

how to test reverse power trip?

1915

What is the previous name of Cox's Bazar

687

HOW TO CALCULATE THE REGULATION OF 100 AND 25 KVA TRANSFORMER

673

How to decide the size of the capacitor for a single phase induction motor say 2 HP ??

783

I have doubt that the supply HZ (very low or high than rated ) may affect the power factor. is it true. ?

544

In ht capacitor ckt we are using LBS Panel it having isolator with fuse, one of HT fuse flash over, so what is reason behind this event.

821

EXPLAIN USE OF ROCKING ARRANGEMENT IN ELECTRIC HEATING?

656

In parallel operation time both NGRâ€™s close or not close if both close what will happen

2427

5443

can we use trip light with bus coupler?

691

In the N-series schneider reclosers. What is the difference between current during fault time and current at tripping? This appears in the Event log in an event of a trip out.

532

WHAT IS SUBSTATION & ACCORDING TO VOLTAGE HT,EHT SUBSTATION EXPLAIN IT

1659

if you are in a software company,then why do you want to come in a core company like sail, ntpc(where lots of trouble like tension but you have a good life in a it company) ?

750