Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Do I need a special Transformer to put 240 VAC 3 phase into it and and get 480 VAC 3 phase out of it to run a machine? Or, do I just use an ordinary step down transformer and step up the voltage? Thanks

2 2656

what is the principle of vvvf drive motor

3 25409

We know that, in case if there is a faulty insulation,or sc, the current is bypassed to earth through the earth wire that has low resistance.Actually, what will happen to that current that flows through gnd?In that case,if we come in contact with that faulty appliance, wont that current flow through us as we form a closed path by standing in gnd?Is grounding a safety measure?

3 3374




Hai, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to yuva_polisetti@yahoo.co.in

667

why we step down voltage level from 33kv to 11kv and 11kv to 415v.Instead we can step down voltage from 33kv to 415v directly using single transformer.

Adani, HCL, Central Electricals, Electrical, ABB,

12 52614

sir, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to eee_dharmendra@yahoo.com

657

what do you mean by 1 ton in AC`s

Bhel, Bosch, ITC Infotech,

36 90413

how can you prove that in CE configuration a transistor has 180 degree phase shifted output

Bhel,

5 10879




hi frenz,its aswathy.i hve aplied for the hpcl test on feb,pls send the test patern & the placement papers as soon as possible. mail-id :kjaswathy@gmail.com

574

HAI SENT HPCL APTITUDE QUESTION PAPER, MY EMAIL ID IS angus_eee04@rediffmail.com,angus_eee04@yahoo.com

825

How can we measure and monitor critical performance parameters of Diesel Generator Sets, both electrical and engine ?

Cologicx Systems,

3 6948

hi frnds.....anyone get any reply from HPCL. I HAVN'T.....B,COS written will b on FEB 17 th.

HPCL,

1 2647

what is the maximum genarating in india?

17 29554

WHAT IS THE DIFFERENCE BETWEEN RESISANTANCE AND IMPEDANCE IF IMPEDANCE IS MORE THAN RESISTANCE AT SAME VOLTAGE CAN WE HAVE RELATION DERIEVED BETWEEN THEM

4 6499

How to calculate D.C load current?

3 26914


Post New Electrical Engineering Questions






Un-Answered Questions { Electrical Engineering }

Efficient electrical earthing in hard rock area

153


differnce between single acting and double acting solenoid valves

667


what is JE exam?

865


what about the power of wattmeter at starting and loding?

893


what is the criteria for selecting fuse rating in 1phase, 2phase & 3phase welding sets?

631






why we testing the core balance of the transformer before comissioning?

784


Is it advantages of having star-delta vfd than normal star vfd , if yes why?

973


Difference between rating factor of cable and derating factor of cable?

292


what is the difference b/w UHVDC and HVDC(LIGHT)?

2581


while doing high voltage test on 11kv/433 distribution transformer why we only give 28 kv on hv side and 3kv on lv side for power transformers what is the value what factors it depends

1277


How can we choose the rating of submersible motors

1383


How seriving & testing of the HT & LT breakers are done. What are the standard Ir values on which we can come to know the test is passed or failed?

624


how the CT and PT is connected in the circuit during testing of transformer explain with diagram

802


What will happend if given Vfd out put to step up transformer

512


hi, i have 3x200KVA and 2 x 80KVA UPS with battery bank of 150AH 68Nos. and 100AH 204Nos., i need to install AC either ductable or PAC type, so can you help me to calculate heat load and capacity of the AC to install.

1546