ELECTRIC MULTIPLE-UNIT TRAIN HIGH-VOLTAGE CHAMBER LOCKING SYSTEM Russian patent published in 2008 - IPC B60L3/00 

FIELD: transport.

SUBSTANCE: electric multiple-unit train high-voltage chamber (HVC) locking system consists of an air tank from which air is forced via a supply line, safety valve, into air-operated locking circuits to lock HVC and, further on, via the current collector gate, into the said collector cylinder uplifting the current collector. Also, air from the aforesaid tank is fed via another supply line and air-operated valve con-rod-connected with the aforesaid current collector to the pressure electric pickup closing the electromagnetic contactor coil feed circuit to switch on the said contactor which, in its turn, closes the electric locking circuitry coil feed line. Now, the said locking circuitry locks HVC.

EFFECT: lower probability of HVC opening.

2 dwg