Why control of DC motor is simpler?

1930

what is the working principle of energy saver control panel. please give the complete calculation & theory.

1823

True or false question. 1.The fuse provide phase and neutral 2.power loss in electrical circuit can take place in (resistance or inductance or capacitance). 3.two phase system each phase has separated by a phase difference of (90 or 180 or 270 or 45). 4.3 phase balanced star connected load neutral current shall be (line current or phase current or zero or unity)

1117

how flow current in 220 kv line to line

1535

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.

1444

hr round

1650

how can you size an automatic voltage regulator?

1862

what is doubling factor in making current of a breaker?

1551

What is float cum boost charging system?

1573

checking procedure of capacitor based motors.used in fans etc?

1602

Explain difference between stand by earth fault and residual earth fault protection?

1524

explanation of mesh bus bars

1670

why we testing the core balance of the transformer before comissioning?

1566

how to test YNyn0 vector group in transformer?

3182

what is consequences of neutral and earth connect?

1648