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Electrical Engineering Interview Questions

what is static excitation and dynamic excitation of synchronous generator,scr excitation is a brush or brushless excitation?

26781

Sir, plz tell me the relation b/w KW and frequency in Variable frequency Drive?

3207

sir, plz tell me how much kvar capacitor required for 1000 amp or 500 Kw load ? what is the formula ?

CSPL,

26993

During he starting up of the motor, the upstream's MCCB (350A) always trips due to the UVT relay activated. Can Star-delta starter use for a 20kW Motor (For a powder mixer machine) cause voltage-dip in the supply line voltage? If so, what are the recommended solution to eliminate/reduce the transient voltage dip in the line voltage?

4112

Hod do u calculate cable size for underground laying and the factors effecting/influencing it??

12004

sir pls send the je exam - 2008 and other model question papers..

1159

what is the criteria for selection of conductor used for ehv ac electrical dischrge

1154

In an LT pole, the line voltage is 415V. How is it converted to 230V into the house via the service cable?

12884

we need a ntpc previous papers

979

why do we lay up the core of a cable?

1166

how does the thyistor work in dc drive?

1049

differentional compound gernater used for wielding porpose. why????????//

2383

Sir, plz tell me how droop setting is done in parellel operation od DG set ? please give practical example ?

1224

HT/LT TRANSFORMER TEST?

4820

HT/LT PANEL TEST?ALL TEST

4905

Un-Answered Questions { Electrical Engineering }

how to deside the capacity of chock for drive?

1102

Is electro plating what type of load whether resistive, inductive or capacitive loads

2410

What are books to be referred for KPTCL exam?

2734

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

1011

explain the types of drives

1071

what are the things that can cause a three phase motor to crawl?

2223

define superposition theorem thevnin theorem ,norton theorom?

1240

Does the direction of rotation of d.c. Shunt motor would get reversed if the armature current and field current both are reversed?

154

What are the three major categories of error?

163

What is principle of Floroscent tube 36watt.

1077

What is the cut-off rate?

172

hello! sir i did three year of diploma in electrical (2007- 2010) and now i m a student of electrical engineering. sir can i apply for germany visa for study and part tome work over there?

955

what is proper capacitor placement? How to evaluate capacitor size?

1184

what is charger supervision and control supervision?

1023

How do I calculate/select Droop CT ratio for various capacity of generators?

2346