Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

why insulators colour is BROWN?

1 5876

in single phase converter, the no.of scr's conducting during overlap a)1 b)2 c)3 d)4

Engineers India,

2070

What is basic impulse insulation level? And how it is calculated for sub- station?

2 11817

3 phase induction motor connection star or delta while using ac drive motor is .75 to 5.5 kw

1963

For a 500 MVA 400/220/33KV transformer following data given HV power = 500 MVA IV power = 500 MVA LV power = 5 MVA If input power is 500 MVA then how output power is (500+5)MVA. Can anyone help

MEIL,

1 6858

How to calculate incomer of a capacitor bank/feeder from its KVAR, AND how to calculate the copper busbar for rated incomer,like for 400A we calculate the 40x10 of aluminum busbar.

1 7789

i seen a 132kv/11kv transformer,and thier is a sugar factorys 10MW EXPORT PLANT,MY QUESTION IS THAT WHEN THEY EXPORT ELECTRICITY THEY USE THE SAME TRANSFORMER AND THE CONNECT IT TO 132/11KV TRANSFORMERS SECONDARY SIDE CAN ANY ONE EXPLAIN IT.. THE TRANSFORMER IS OF KIRLOSKAR MAKE AND IT HAS TAP CHANGER.

1 3197

what are thw types of turbines use in biogas plant?

1952

What will happen to transformer if we gave 5HZ input instead of 50/60Hz??? explain with reason

2 4804

in fuel level controller what is MOV please define.

2 4515

what are symmetrical and non symmetrical components in electrical installation.

2080

Hi, what is 100 % stator earth fault protection and how it can be achieve by 3rd harmonics and low frequency injection principle ?

1 3955

As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.

1880

what is the difference between H.T Or HV lines...?

1 4521

As we use capacitor bank in 3ph ckt to improve PF, can we use capacitor in single ph domestric use, in house we have Fan,Mixer,electric cooker,iron,tube choke they also lag the system,because it is inductive load. if it is possible to improve PF of single ph system-- if yes- type of capacitor to be used,connection diagram, working in detail. if no-- list it.

1776

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Un-Answered Questions { Electrical Engineering }

how to copy from plc ge fanuc versamax series,all input and output, adress, and printout.

2501

how to convert lv line to hv line and viseversa, any losses will occur during this process

2070

can anyone please help me to find the rupturing or breaking capacity in KA of circuit breaker (MCCB,VCB,ACB etc) of HT and LT side of a distribution transformer...please help with detailed step by step answer...thank you

2005

Atwhat condition reverse power relay will act?

2263

how to read idmt curva

2288

What is difference between SMC supportg and Glass Fibre Reinforced Plastic Support.

2341

what is model question rrb junior engineer electrical gr.II

1952

What are the functions of temperature scanner in power transformer?

2188

What is big transformer parts and their function ? Ty

2213

how will calculate the safe starting current of 3-phase squirrel cage induction motor?

1920

What is mean by STUB protection?

2064

what is mean by ideal infinite bus? why it is required to consider in fault short circuit calculations?

2706

What is Annunciation?

2034

what is meant by star/delta voltages as 440/220 in a 3 phase induction motor, and why it should be connected on STAR IN 3 PHASE SUPPLY

2205

what is circuit recombiner and how it is different from circuit breaker

1885

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