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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is Lockout Relay and what is use of it in electrical installation

1 3861

Dear sir, iam completed iti ncvt electrician 2000-2002 & diploma electrical eng completed 2008-2010 distance education in rvd university, still i got B licences only but my working company want C licences, how to i get c licencese pls reply me iam in critical situation thank you karthick 9841637803

1705

What is the Surge for 1.1 Phase Induction Motor(For Eg.1Hp) 2.3 Phase Induction Motor(For Eg.1Hp) 3.AirConditioner(For Eg 1Ton) 4.Refrigerator(For Eg 180Ltr or 160kW) 5.Induction Cooker 4. Ceiling Fan

2063

What is the purpose of SOTF being used inspite of distance Protection given?

Alstom,

7 50193

what is the operating time for LBB and how does the LBB relay realise whether cb is opened or not?

1994

why in generating station generation voltage is 11 kv

L&T, Usha Martin,

1 5210

What is the Good Earth resistance value of G.I & Cu. Chemical Earthing & Normal Pipe Earthing?

ABC, Reliance Life Sciences, TCS,

2354

we have 3 phase 4 wire supply 230/415 V.AC and our distribution is single phase or we have all single phase 220 v,ac operated appliances. and noted the current with help of clamp meter Red to N = 20 Amps. Yellow to N = 45Amps and Blue to N = 30 Amps ( total is 95 Amps ) what will be neutral current on the main .

ABC,

1 5589

What is mimimum di -electric strength value for 33 KV transformer OLTC oil

Franke Faber,

2014

KVA transformer of different frequencies of 50hz,100hz,500hz&1000hz. which one of these transformer has big size? Give reason

Suzlon,

4 8024

what is cogging and crawling

Suzlon,

2556

what are the stresses in circuit breakers ?

2030

What is mean A32 B32 C32 D32 in mcb(miniature circuit breaker)

2 46976

Is there any relation between transformer capacity and its bdv?

1 3344

how many BUSBAR is in electrical system?

3 6144


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

How will be the single line diagram of series trip HT breaker? how it works?

2618


What are the main advantages of generalized error co-efficients?

1183


the grid connection required for a 50 MegaWatt fotovoltaic powerplant is higher or lower than 35kv (high or medium tension)?

1864


What is CCT (Correlated Color Temperature) ?

1967


What will be the current if the resistance total in a series circuit doubles?

1221


How to calculate Air conditioning capacity for a telecom BTS shelter?

3524


in 1-phase 230v,how in 3-phase 440v. in each phase in between 230v.

2878


How can we calculate ac current from the given DC current when AC voltage is given?

1965


What is the Difference between Ac Drives and Dc Drives? According to application, speed, Torque, cost, Reliability, Construction, Motor etc... Thankyou !!!

2211


why ten delta testing is carried out on power transformer

1832


how is the magnetic current test is different in delta-star and delta delta transformer.

2204


Meter p.t. ratio= 3×230/400 , c.t.ratio = 3×1 (2) A what is m.f.

1759


3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........

1980


In the ACB breaker capacity is 2000Amp but this each phase taken 1250 But total beldibg load is 600amp or 700amp watt is the problem

1972


which is the best institute for PLC,SCADA,DCS in hyderabad

2374