Electrical Engineering Interview Questions
Questions Answers Views Company eMail

critically criticize the application of ring main unit in power system

145

why i can not use thimble on capacitor duty contactor

137

Make a list of materials and layout diagram for a 35hp motor, to be wired at 35meter away from the MDB in a chemical factory.

138




Draw SLD for a panel has 500A Bus Bar rating, with 4 outgoing, each is 80 A (load current), showing the transformer and capacitor bank rating.

88

Draw SLD feeding from the SS up to distribution board of the load, calculate cable size, breaker sizes, and meter for the following case: Ground Floor: electric room, pump room, 5 shops, each is 15 KW First Floor: 5 shops, each is 15 KW Second Floor: showroom 30 KW Service Loads: water pump 3 KW (3ph) , fire pump 3 KW (3ph), and one DB service 12 KW (3ph).

HMK,

199

Draw an S.L.D of the main panel for a hospital, showing meter position. Essential loads are: 1) Equipment load 100 KW 2) Critical load 500 KW 3) Life AID Safety load 400 KW 4) NON-Essential load 200 KW 5) Other service loads 200 KW Calculate and suggest the size of the transformer, size of main cable, capacitor bank, and calculate the capacity of an emergency load having above first three mentioned loads is supplied by an emergency generator.

HMK,

169

what are the disadvantages of low power factor

HMK,

148

how can we Increase the Value Of Frequency in electric circuits

HMK,

173




Give accurate definitions for these electric terms: Inductor Inductance Inductive Induction Reactance Reactive Esam Baraka ٢١ ساعة

HMK,

190

how to calculate short circuit current for the busbar

HMK,

186

What is main purpose of chock coil and starter in florescent tube ?

1 322

What is the comparison between 30mA DP RCCB and 100mA DP RCCB and can replace it against 63A MCB

198

7. A resistance of 30 ohm is connected across 240v supply. If a resistance R ohm is connected in parallel with 30ohm resistor across the same supply, the current drawn becomes triple of original one The unknown resistor R is

562

What is duty cycle for HT motors? How many start permitted if mentioned as 01 for hot and 02 for cold per duty cycle?

GVK,

1 356

Purpose of providing neutral isolation panel for parallel operation of diesel generator

251


Post New Electrical Engineering Questions






Un-Answered Questions { Electrical Engineering }

WHAT IS MEANING OF Gg & Gg IN hrc FUSE

1787


Any one who apply for Ferro Scrap Nigam Limited cn join with me at rajuhalder@indiatimes.com or 09669717028

856


what is meant by loss of field in a DC motor? how a universal motor works?

669


what is meant by motor startup supervision & motor load jam protection ?

3909


how unidirectional torque is produced in DC motor?

5346






why not starting switch first connect in direct on line starter?????

694


what is high - pot test. what's its use?????

819


How i can decide that HVDC line is best for transmission.

773


How to design pavement quality concrete by using C.R.C.P Method

561


If 100 KAV USP dedicated earth got disconnect / Cut. What will happen at load.

580


upto how much low RPM we will run the commercial motor which is run through VFD without any problem occurs in motor.Motor rating Duty is S1 & RPM is 1400.

894


What is the difference between single core 2 wire and single core 3 wire system? Which application we are using this? and for What purpose we are using this?

1091


what is the transformer rush current?

758


transformer phasor diagram under load explain it?

932


what is the relative size of single and three phase?

641