ALTERNATING CURRENT TRACTION SUBSTATION Russian patent published in 2019 - IPC H02B5/00 B60M3/00 H02J3/00 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the electrical equipment. Traction substation comprises feeder of power transmission line, traction transformers with voltage control under load, as well as distribution devices of higher, traction, district voltage, relay protection and automation device (RPA), electric energy metering unit (EEM) and communication channels. Distributing devices of the highest and regional voltage contain switching devices with measuring current transformers and measuring voltage transformers. Distribution device of traction voltage comprises first and second sections of bus system, sectional disconnectors, input feeder, longitudinally capacitive compensation device, contact network feeder, DDA feeder, TSN feeder, spare cell, measuring voltage transformers and bypass system. Feeder of inputs, contact network, DDA and TSN and spare cell of distribution device of traction voltage contain switching devices and current transformers. Traction transformers are electrically connected to distributing devices of the highest, traction and district ones. Spare cell of traction voltage distribution device is electrically connected by first section of bus system, second section of bus system and bypass bus system via spare cell switch and disconnectors. Feeder of contact network of traction voltage distribution device is electrically connected to bypass bus system through disconnectors. Relay protection and automation device (RPA) and the electric energy metering unit (EEM) are connected by communication channels with measuring current transformers and measuring voltage transformers, as well as with measuring current transformers and measuring voltage transformers of distribution devices of high and regional voltage.

EFFECT: possibility of selecting rational stages of on-load tap-changers and capacitive compensation.

1 cl, 1 dwg