what is the acceptable value of TAN DELTA and dissipation factor for 11kV, 1.75HP Motor?.

4134

define hysteresis loss, eddy current loss and windage loss

1950

what is counter poise conductors

2112

how to calculate differential current when we testing differential relay..suppose we have 1000kw generator,630amp VCB,what value we should put /inject so that relay trip the VCB? PLLZ justify ur comment

1541

Is it possible to implement Restricted Earth Fault protection for a transformer without neutral CT?

4279

HELLO EVERYONE, I RECENTLY HAVE FOUND ONE PROBLEM, I WAS TAKING NO LOAD TRIAL OF AN HT MOTOR 920 MOTOR , 1440 RPM , 6.6 KV, WITH AUTO TRANSFORMER. AT 450 V, LOAD WAS 40 AMP AND SPEED WAS 250 RPM. BUT AS WE INCREASE VOLTAGE FROM 450 TO 480V, LOAD BECOME 41 AND SPEED REDUCED TO SOME RPM . SO WHICH PHENOMENON ACTED HERE FOR REDUCING SPEED.?? AND IS IT HAPPENING ALWAYS OR IT IS RARE? I ALSO HAVE FACED SUCH PROBLEM WITH FEW LT MOTOR ALSO.

1916

is it possible to start a motor in felid connected to a remote mcc

1882

what is the meaning of impedance protected in instrument cooling fan

3470

What is domestic transformer? Draw the connection of domestic transformer.

2268

Mention the disadvantages of low power factor? How can it be improved?

1096

how is the testing of an REF relay? what are the test REF circuit having?

1954

What is making & breaking current ???

1466

An active element is one which a. Supplies energy b. Absorbs energy c. Supplies energy and convert energy from one form to another

2025

What types domain of laplace transforms? What behavior can laplace transform predict how the system work?

1097

what may the reason for vector shift in a generator?

1841