B - Operations – Transporting – 60 – L
Patent
B - Operations, Transporting
60
L
342/34.31
B60L 7/12 (2006.01) B60L 7/22 (2006.01) H02P 3/14 (2006.01) H02P 3/18 (2006.01)
Patent
CA 1186037
ABSTRACT OF THE DISCLOSURE Disclosed is an electrical brake system for an electric rolling stock including a filter condenser and resistor- chopper. If the voltage across the filter condenser is going to rise excessively due to an abrupt variation of the trolly load or a momentary coming off of the pantagraph from the trolly, it is detected promptly and the resistor- chopper connected in parallel to the filter condenser is operated so as to suppress the excessive voltage and at the same time reduce the resistor-chopper current automatically in accordance with the predetermined timing pattern, not to a complete cut off of the regenerative braking current, but maintaining the regenerative control, thereby allowing a quick restoration of the regenerative current when the power system is rid of the disturbance.
420856
Awano Toshiaki
Koyama Shigeru
Shikata Susumu
Kirby Eades Gale Baker
Mitsubishi Denki Kabushiki Kaisha
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