can i have the methods of speed controls for 3 phase AC
MOTORS.
Answer Posted / g.sreenivasalareddy
Frequence control,Voltage control,rehostatic control
| Is This Answer Correct ? | 1 Yes | 2 No |
Post New Answer View All Answers
What is inrush current? how can calculateit? what is the affect of it?
what r the checklist while installing a 380 kva DG set
why the India electrical supply transmission loss is high when compare to us
how to calculate the power factor when instantaneous voltage and current has harmonics in it ?
why power factor is important?
What will be result if we connect LT votage to the terminal of HT motor?
Why we use auxillary relay ? what is function of differential relay, directional o/c relay?
What is synchro?
. How to calculate the Short Circuit Impedance in Transformer? How to calculate the Short Circuit Impedance in Transformer?
hai...... tis is Hemanth. jst now completed electrical engineering... i wanna to apper for ap tranco exam... plzz send me the previous q's paper link......thanx in advance.
why asa method ZPF method is more accurate than ASA method?
i have seen one 8.4 MW synchronous motor in a plant located in bellary it is fixed with brushless rotary rectifier ,anybody can explain its start up principle
WHAT HAPPENED DC SERIES MOTOR FIELD WINDING OPEN. CAN POSSIBLE.
I have made a 3 phase thyristor full bridge rectifier. But at the moment it is working only for the half bridge operation. Both the half bridges are on operation separately but when i put it into full bridge operation the oscilloscope output is zero. I rechecked that the pulses are correct for each thyristor. what could be the possible reason for this?
please send privious years question papers of jindal steel and power ltd.My e mail id is rajanikant.sngh@gmail.com