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Electrical Engineering Interview Questions

how can we minimize the off load losses of a distribution transformer which is required to be energized 24x7 ?? capacity of the T/F is 1250 KVA and off load losses are around 2.0 KW.. can we use capacitor bank at the secondary of such a T/F to overcome off load losses? please elaborate briefly...thanks

3215

an off load but energized 11/0.4 KV, 1250 KVA T/F has a power factor of 0.65(capacitive)..!! why is it so, though T/F being an inductive device ??

3271

What are the specific gravity of fully charged and fully discharged lead-acid battery?

2729

pls tell what are doing the three phase motor star and delta connetion with circuit diagram and control wiring .

985

what are doing the duall connetion in tree phase 10hp or etc motor with circuit diagram

1131

what is the circulate the diesel in DG in side pls tell parts name and picture with circulate the diesel

1003

why are the maintaine power factor and how can this control and this is how work.

1041

pls tell us AC plant are how do work and parts name with picture

993

how can tell us the AC indoor or outdoor which Tr and formulls

853

ACB & VCB how do work and saftes and how can maintenance in this and parts name show with picture

1191

how can see the ac indoor or out door ac which Tr

1095

where are the circulat the diesel in DG parts name with pictue

SSP, Wipro,

1093

what is the star delta connetion and how can do it a three phase motor with control witing with picture

1331

what is the AC Plant and how can do the work with parts and picture tell us 150 Tr

1094

how can maintain the power factor and why and this is how do work tell us

1088

Un-Answered Questions { Electrical Engineering }

When distance between two pulleys is not fixed, the tension of belt is adjusted by a) driver shaft b) driven shaft c) adjustment screw d) belt

1043

Difference between drift current and diffusion current?

818

What current position are you holding in your current company?

1142

R=*¶ l/a

721

how to caculate cable size for diff types of loads? if anyone know the calculating procedure please tell me

545

1.what is the funtion of chiller primary & scondary pumps. 2.what is the use of distribution lines & Types. 3.what is the use the thermal power stations & how much capacity.

1074

full form of electrical?

1783

model question paper for supervisor trainee

1084

167

Define availability (operational)?

163

what is the power rating of CPU, CRT type moniter, LCD type moniter,scanner Approx.

1197

What are all present producing cost of Per KWH of various Fuel?

1608

anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?

968

what is the difference between 50 hz freq. and 60 hz freq.? which is better and economic in them ?

1321

What is the pro & con of having 11kv & 33kv incoming, and what is the adv & disadv. of converting from 11kv to 33kv.

1782