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Electrical Engineering Interview Questions

why insulators colour is BROWN?

3327

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

1175

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

8356

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

1035

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,

4532

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.

5738

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.

1916

what are thw types of turbines use in biogas plant?

1039

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

2913

in fuel level controller what is MOV please define.

2442

what are symmetrical and non symmetrical components in electrical installation.

1146

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

2414

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.

862

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

2345

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.

750

Un-Answered Questions { Electrical Engineering }

number of I/O devices in siemense plc

1165

HOW WORK HEAT PLATE EXCHANGER

1043

what is Fault level? why it is calculated? how will u decide same for our plant?

1061

please send me the previous year's question papers of jindal GET exams

5063

How to select a contactor? How many types of contactors are available

2273

PLEASE SEND ME NTPC RELATED INFORMATION LIKE WHICH TOPICS HAV MORE SCOPE,BOOKS TO READ,CUT OFF...PLEASE.mail at thiru.1203@gmail.com

1181

Who many reason of ignition fail ?

986

what is automatic voltage regulator?we can control the vlotage by using fuzzy controller in matlab?why we go for fuzzy?

1059

Why do we perform an open-circuit test and short-circuit test on the transformer?

156

what's the difference between abs/inc encoders. apart from the position remembrance what are all the other differences. and what's mean by grey code.

1084

my bachelors was done with EEE now i got admit in NU with CS as course. how to answer this qns 1) why u choose cs? 2) why u changed from eee to cs

738

if the armature current in a dc generator is ac ( sinusoidal ) why doesnt the sjhape af armature mmf a sinusoidal (ni) ? armature mmf in case of a dc machine is triangular.

1045