Answer / umatheanmozhi

polychlorinated biphenyle

Answer / pradhyumn

Highly refined Naptha based mineral oil.

Answer / sunday victor

Transformer make use of hydrocarbon mineral oil

Answer / ashok mishra

mineral oil.

Answer / mahadi

Turbo oil.

how does a tube light starter works?

2 Answers  

why transformer rating comes in kva?

4 Answers   HNG, Tech Mahindra,

Lt trivector meter with ring type CT.Spec of meter are 3x240 v, -/5A. Ring ct spec. are 60/5A, line voltage- IL .66/3.0KV..what is the multiplying factor

1 Answers  

what is the difference between high impedance & low impedance

1 Answers   L&T,

Hello to all, Please someone can send me HPCL ELECTRICAL Engg. Sample papers to me? Its urjent....my email address is.... raviasiapacific@gmail.com

0 Answers   HPCL,

if the supply frequency increases what happens to the motor load

2 Answers  

we have one pumping station and 4.6 MW 7 no.s synchronous motors.so there is no required HT capacitor to improve power factor.But we have two no.s of 25 Mva power transformer connect to distribute the power for motors connect with 220 kv line.So i have required the HT capacitor to improve power factor at HT side i mean power transformer bus side.So please suggest how much HT capacitor banks required for same.

1 Answers  

what is the difference between star connected and delta connected motors

3 Answers   Welspun,

What happens if 25 Hz frequency is applied for 400/200,50 Hz single phase Transformer.Will Voltage increase ?

2 Answers   Bhel, Dawlance, IBM,

if earthing is used in place of neutral how the circuit completd.

7 Answers   Epitome,

when the motor was star position that is running ok but when the motor was delta it was tripped? why?

5 Answers   Nimbus, SEL Manufacturing,

What is the purpose of reactor in over head transmission line.Can you any explain it.

2 Answers   Dr Reddys, L&T, Reddy Labs,