A mechanical soft-start type coupling is used as an interface between a line start, synchronous motor and a heavy load to enable the synchronous motor to bring the heavy load up to or near synchronous speed. The soft-start coupling effectively isolates the synchronous motor from the load for enough time to enable the synchronous motor to come up to full speed. The soft-start coupling then brings the load up to or near synchronous speed.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
This invention was made with Government support under agreement no. DE.fwdarw.FG36-08GO180132 awarded by the Department of Energy. The Government has certain rights in this invention.
RELATED APPLICATION DATA
This application claims the benefit of provisional application Ser. No. 61/614,140, filed Mar. 22, 2012, the disclosure of which is incorporated by reference herein.