FIELD: railway industry.
SUBSTANCE: invention relates to system automatic equipment of electrified railways and namely to a method for controlling automatic circuit reclosers (ACRs) of the feeder circuit breaker with the control of a persistent short circuit (SC) in the disconnected contact network (CN) of alternating current of a double-track section. The objective of the invention is to improve the reliability of automatic reclosure. The main task of the invention is to control induced voltage U in the disconnected CN and current of the second adjacent supply line of the contact network I2. In this case, according to the method, if U is greater than U*, where U* is the calculated induced voltage in the event of a persistent short circuit on the first supply line at the specified current of the adjacent line I2, it is allowed to reclose the circuit breaker. Otherwise, reclosing is prohibited.
EFFECT: invention increases reliability of determining short circuits in the contact network when load current flows along the adjacent path.
1 cl, 2 dwg
