A synchronous machine connected to a power system grid bus-bar is operating as a generator. To make the machine operate as a motor, the 

(1) direction of rotation is to be reversed (2) phase sequence is to be changed (3) field excitation is to be decreased (4) mechanical input is to be less than the losses at the shaft
in Electrical Engineering by

Related questions

0 answers
asked Apr 10, 2018 in Electrical Engineering by anonymous1 | 22 views

9,129 questions

7,895 answers

145 comments

3,205 users