| 摘要 |
FIELD: railway transport; railway signalling and devices to detect train on track and control switch. SUBSTANCE: switch control gear has combination track control relay with new connection diagram. New connection diagram of automatic reset relay, diagram of auxiliary relay and time setting relay, diagram of entering switch control orders in switch starting unit, switch occupancy and sidings and straight tracks occupancy indicators. Gear has also opposite-connected rectifiers connected to track circuit taps, one of rectifiers being shunted by automatic reset relay front contact. EFFECT: enhanced safety. |
