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Electrical Engineering Interview Questions

explain PV modules in solar energy generation.

1032

dear sir, i completed diploma in electrical in 2005, how i can get electrical supervisor liance in mumbai

1075

what transformer we used normally and upto which kva?

1087

In Delta connected capcitor bank, One bank failed due to some problem. Can we connect Open delta capacitor bank to 3 phase motor. The motor voltage rating is 6.6KV. IF yes what changes will happen?

2084

Why can we connect the mobile charger both ways?

2535

why voltage between neutral and earth, with out secondary grounded distribution transformer

2109

What is the clear distance between a MV panel(rear side) and wall.

L&T,

4835

How to select cable the size, what is the parameters use and what is the formulas use for this cable size calculation?

1028

I WANT TO know WHICH WAY IS BETTER FOR CONNECTION BETWEEN POWER TRANSFORMER AND MAIN DISTRIBUTION PANEL. 1-IS BETTER WE USE CABLE? 2-IS BETTER WE USE BUS DUCT? my transformer rate power is 2500KVA

1982

difference between synchronous reluctance motor and switched reluctance motor

3797

How the current flows in dc circuit?

3383

what is meant by negative conductor?

2433

how megger step up the DC voltage

3482

why does voltage generation at 11 kv?

3103

we all know voltage is a force(emf), and the force always devides if 2 or more than2 loads are there but why does the voltage remains same is parallel, it must devide na ???

NTPC,

1115

Un-Answered Questions { Electrical Engineering }

What is the difference in calculating size of AC cables compared to calculating size of DC Cables? Usually DC Cables are larger than AC Cables although they have the same ampacity. Why is it?

1127

How to resolve if Diesel generator stop while running ?

2235

if the load is 80 amp for main fuse and 100 amp for breaker so how can we calculate the cable size (cooper ) .

1275

What is step signal?

230

What are the different modes of plc processor?

228

how many single tension hardware are required on a double circuit transmission tower?

1077

Explain (in simple ) - root mean square. whats its role in electrical fundamandal.where its used

1381

how to calculate the conductor size for certain KV transmission line and distribution line?

1622

Differenciate between circuit wiring and sub main wiring with illustrations

1351

We have 5 Distribution sections with variable loads&We have 3 Gensets(500kva,380kva&250kva) our total load is between 400kva to 600kva. so how could we connect 3gensets.

957

WHY MOSTLY Rph IS USED FOR CONTROL CIRCUITS AUX. SUPPLY ?

1625

What is A check, B check, C Check & D check for a diesel Generat

1117

why different series of vfds (like allenbradley)are used in industry ?

1405

In TNC switch, is there any 1NO+1NC block ? and if we move over closing position, is ther any affect on trip position or vice versa?

1353

What are the three major categories of error?

242