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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

In 11KV Double pole structure for each phase we are using Disc one Insulator. Why we are not using 2 r above insulators instead of one insulator?

Genus,

4 6979

What is the difference between Derived earth Fault and measured earth fault.How it works.

1 11697

Which one hurts more AC or DC Current ?

10 6483

WHAT IS DOL STARTER? HOW IT WORK? GIVE ITS CONTROL AND POWER DIAGRAM .

Bhel,

1263

what is star delta starter? how it works? give its control and power diagram.

Bhel, Point to Point Solution, Star Wire,

1191

what is RTD? what is THERMOCOUPLE? What is difference between it?

Bhel,

2 3732

what is induction furnance? how many phase supply given io its coil for 15 or 20 ton furnance?

Bhel,

1 1967

how to decide cable rating? send me cable size,ampere rating data

Bhel,

2 3397

what perpose of use CT ratio in gt,st,uat

1 1902

WHTA IS LIMT OF LEAKGE CURRENT OF 11 KV 1 CORE 1000SQ.MM. XLPE CABLE.LOAD ON CABLE IS AROUND 600AMP .LENGTH 500 MTRS.

L&T,

1121

what happens when you connect a.c and d.c supplies

1 1119

What is the difference between class0.1 and class 0.1s accuracy of current transformers

2 4056

how to identify 3phase....r y b .A new make altnator how to identify R

2 3320

how to modify DOL control panel into Delta Y connection?

ABB, PDCS,

1069

DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.

995


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Un-Answered Questions { Electrical Engineering }

Brief me about maintenance planning & sheduling of machine tool.

1162


wow to calculate the transformer rating(KVA)

1208


how to calculate the power factor when instantaneous voltage and current has harmonics in it ?

987


hi pal, i am vengatesh from tamilnadu(chidambaram),i have called for the written test for the post of jr executive(ELECTRICAL) of AAI ,I dont know about the question paper pattern,so any kindly help me to face the examination,post me the model question papers and some tips to write my examination to (vengi.annadurai@gmail.com)

988


how define the torque in ac drive. from electrical side in the drive friquency ,voltage and current three factor is there.

1181






Define what is the function of anti-pumping in circuit breaker?

204


As per the Anchor capstan motor specification, full load current is 200A. starting current is 1750 A and acceleration time is less than 8 seconds. Please guide for selection of cable size.

1017


how to calculate the magnetizing current of ct ( 800A/1A) for Relay 64

609


how unidirectional torque is produced in DC motor?

5721


How to calculate energy stored in an inductance?

193


how to calculate percentage impedence at 75 deg C at normal tap

1281


for a 500 KVA connected load, I calculated 30% of capactor for power correction. Even after using 225 KVR capactor PF is not improving. What could be reason for low Phase correction factor?

1111


Explain marx circuit.

211


diameter of cable and core is doubled then the value of capacitance is

2818


Why do we use center tap transformer that used with portable tools

1338