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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

which is more dangerous AC\DC supply

3 7631

What is the formula formula for Busbar sizing and what are the things to be consider for Busbar Calculation?

ABB, APL,

2501

What are the factor to be consider for CT selection in 132kV substation?

ABB,

2030

What is the In door to Out door Sub Station.

L&T,

5 9956

how to select the double earth conductor if 21A full load?

L&T,

2018

What r the specification furnishid in motor name plate?

5 7910

what type of euse we should use ? 1- High resistance & low temperature 2- High temperature low resistance

2 4296

What is the role of a Production Engg in a Industry?????

1 3268

What is Class and accuracy in CTs? Types of Classes and important of Classes?

2 6645

What is the role of Dedicated earthing in UPS System?

HCL, MSPL,

3058

THE ROTIO OF VOLTAGE AND CURRENT IN A CLOSED CIRCUIT

APGenco, Constant, Lanco,

12 28879

in power station power measuring unit is KW but in transformer is KVA why?

4 6956

what is mean by busbar and what is the difference between busbar,transmissionline,feeder,distribution line

5623

I hv a question regarding power factor improvement just after transformer. I request you to reply me plzz. thank you sir. My friend has a small unit of fabrication. in his factory the main load is a welding machine, lathe machine, grinding machine. this load is not continuous type. now our electricity board has installed 16 KVA, 11000/433 V transformer for our factory. In the energy meter (trivector meter) at LV side of transformer, i hv seen power factor value of 0.15 only when only 3 KW load was flowing. Further electricity board has suggested to install 4 KVAR capacitor at LV side after energy meter. Now my question is that if we permanantly install and switch on 4 KVAR capacitor after energy meter, during some load on transformer and also without any load on transformer, wht will be the power factor shown in energy meter?i dont want to get any penalty by electricity board, so plz suggest me if i can permanantly install and switch on the 4 kvar capacitor or not at LV side of transformer just after energy meter? Thank you again and awaiting for ur positive reply soon.

9 12317

Diffrectiate between earthing and neutral

TATA,

6 9657


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

we have a 2.5hp Starite electric motor water pump,the elec motor burned out,we need to replace starting capacitor(old capacitor specs erased),what microfarad rating capacitor do we need? 110-125V

1828


Why GRR starts from 60% of motor speed why not less than 60%?

1662


state basic meaning of 'INDUSTIAL AUTOMATION'?

1869


What is minimum phase system?

1102


For some transformers we are using solid neutral earthing while some others we are using resistance earthing why ?

1869


why using transformer and thyristor switch in 3 phase apfc panel

2841


thyristor controlled APFC panel design parameter?

1745


Why arc quenching is used in Diode ?

2081


What is the tube exial fan?

2166


if 12v battery get discharged for 2 months after if we put charge it will charge again?how much time it will take to charge?

1888


we have two motors 1250kW,6.6kV to be coupled on the same shaft ,so please provide assistance for their synchronisation.

2027


How do we calculate the resistance per metre of single core aluminium stranded cable 19*3.25mm sheathed in pvc,at 15 deg C temperature?

2361


difference between servo motor and synchronous motor

2288


i wasted one year for the job after completed my btech what can i say about 1year time in interview

2080


What are the effects of adding a zero to a system?

1222