Saturday, November 14, 2009

Power Electronics1

1)What do you mean by on-load transformer connection?

2)What are the means by which speed control of polyphase induction motor is achieved?

3)What are AC magnet controls?

4)Explain line communtation.

5)What is a thermal time constant?

6)what do you understand by a circuit with zero voltage and zero current switching?

7)what are gate isolation circuits?

All Qs' are from chapter 11,Rashid "POWER ELECTRONICS",3rd ED,Pearson EDU
.........................................................................