Which power will flow first if we switch on a motor? Active or
Reactive? How?
Answer Posted / rishi
reactive power will flow first because as we have generally the motor electrical equivalent circuit composed of series resistors and inductance.
now if in any such circuit if current is to flow then it must charge the inductors first and then current will flow through resistors. hence this will lead to reactive power flow at the very first instant of machine switching.
Is This Answer Correct ? | 5 Yes | 1 No |
Post New Answer View All Answers
what is the difference between delta delta and star delta connection transformer? why we use delta delta transformer since it need earthing transformer for grounding?
what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?
I FINISHED MY B.TECH IN EEE . I AM IN NEED OF A GOOD TRAINING INSTITUTE TO DO COURSES .. CAN ANYONE SUGGEST GOOD CENTRES IN TAMILNADU ,BANGALORE ,OTHER AREAS???????
how to calculate the distance relay faulty zone?pls explain?
what is mean by D.O. in distribution line poles?
What is the difference between earth fault protection of motor feeder with CBCT and Without CBCT ?
calculate external resistance values to add to the rotor of a slip ring induction motor. STATOR- 415 V, 3 phase delta, 1100 A, 50 Hz, 1490 rpm, pf 0,86 ROTOR - 660 V, 590 A, 50 Hz. STATOR current at each steps STEP1-600A,STEP2- 800A,STEP3-1000A,STEP4-1100A.
What will happen if the voltage in my house drops from 220V to any lower voltage?
if sf6 gas low in gis what will happen
how we can calculate 2 phase welding transformer rating or total power?
How to design the earth grid for lightning protection in an industry
What is the Surge for 1.1 Phase Induction Motor(For Eg.1Hp) 2.3 Phase Induction Motor(For Eg.1Hp) 3.AirConditioner(For Eg 1Ton) 4.Refrigerator(For Eg 180Ltr or 160kW) 5.Induction Cooker 4. Ceiling Fan
What is voltage ratio of a transformer?
what ispositive, negative, zero sequence impedence?
How to back charge the Gas turbine generator