Electrical Engineering Interview Questions

What is Rough Balance Busbar Protection

5410

When both contractor star & delta is hold in star delta motor ?? So what happen in this case ??

1760

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

BARC,

1200

if flux and load static in dc motor and supply voltage increases 20% then what happened in speed

1486

How to calculate loses in transformer of 160 KVA ?

IDV,

1248

Shall we use Dyn1 transformer in place of Dyn11 for motor application as a distribution transformer

2287

How to calculate fault level of 11 KV system

1536

From reading, Under voltage relay used also as phase sequence relay now, Why I use under voltage and phase sequence relay in the same circuit (ATS)?

1329

How can ou verify the size of conductor 50Sq.mm ACSR

1522

What is the permissible limit of shaft voltage for 6.6 KV motors ? Why? Is there any standard is available?

2145

In what situations relays are used in Circuit breaker? In Above what rating of Circuit breaker the relays are used? Why relays are not used for CB like MCB?

1278

How relay coordination has to be done? what are the inputs are required for this? Please explain this with calculation method?

1360

Now I inject 1kv DC supply r&y=??? R&Y=?? Y&B=?? B&R=???? RYB&N=??? RYBN&E=????? Minimum value====???????

2330

What is a neutral

3938

What will happen if the rotor circuit of a slipring I.M. is kept open & electric supply is given to its stator winding.

6339

Un-Answered Questions { Electrical Engineering }

Explain about 3 phase motor fault current calculation with examples?

2432

If any cable burnt how can we identify it burnt by high current of high voltage?

2021

Grid fault level [KA]?

2233

Define what is the function of anti-pumping in circuit breaker?

710

what is sevice settings for mccb?How can be it setted?

1509

any body,pls tell me how to done relay coordination ? how to coordinate by TCC curve?how to read the tcc curve?

1845

do any one help me to get "C" license,, i have doubts ,,, if mediators ter pls call me,, my no is 8056640042

1050

What is the formula to calculate the size of Aluminium and copper cable?

1482

What is the basic principle of welding process?

1688

How to select a cable size for particular load?

1343

what r the checklist while installing a 380 kva DG set

3334

1.what is the funtion of chiller primary & scondary pumps. 2.what is the use of distribution lines & Types. 3.what is the use the thermal power stations & how much capacity.

1549

how to check regenerative load in drived motor

1716

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1599

what is mppt (maximum power point tracking ) and how they used in solar power generation ??? what are the main components used in mppt?????

2803