Jan 6, 2003 #1 thehoover Electrical Nov 18, 2002 5 0 0 AU How would I calculate the Kjoule thermal capacity for a rotor starter. Rotor current=1805A Rotor Voltage = 1335V Stator voltage= 11000V Stator current=243.1A Motor rating 4000kW 3 phase Y cos 0.89 Starting torque 200%
How would I calculate the Kjoule thermal capacity for a rotor starter. Rotor current=1805A Rotor Voltage = 1335V Stator voltage= 11000V Stator current=243.1A Motor rating 4000kW 3 phase Y cos 0.89 Starting torque 200%
Jan 6, 2003 #2 jbartos Electrical Jan 15, 2000 6,440 0 0 Since kJoule=kWattsecond, the time needs to be given or estimated. Some idea about the motor prospective acceleration curve would help. Upvote 0 Downvote
Since kJoule=kWattsecond, the time needs to be given or estimated. Some idea about the motor prospective acceleration curve would help.
Jan 6, 2003 Thread starter #3 thehoover Electrical Nov 18, 2002 5 0 0 AU The run up time for the liquid resistance starter is 10 seconds. Upvote 0 Downvote
Jan 6, 2003 #4 busbar Electrical Apr 12, 2001 2,644 0 0 US Possibly applicable discussion/links at thread237-24735 Upvote 0 Downvote