Product list
Maintenance of traction and network control system
A-type subway, 12 car formation (8M4T), the world's longest subway, with a total of 17 trains. Before maintenance, 32.3% of the traction power modules and auxiliary power modules were in a faulty state. After more than 2 months of investigation, maintenance, and debugging, all vehicles have been put into operation during the Hajj period. From August 19 to August 23, 2018, 2.54 million passengers were transported, and the one-way cross-sectional flow per hour reached 72000 people.
Beijing Metro Line 15 Traction and Auxiliary Converter Power Module Maintenance Project
The vehicle control unit (VCU), is a general processing unit. Vehicle applications are normally controlled by the VCU.
Human Machine Interface, also known as Intelligent Display Unit (IDU), real time displays the status of systems, indicates Faults or alarms,
Normally including Digital input output unit and Analog input and output unit, implement on-off control for the control signal and feedback the status signals.
The main function of the Motor Converter Module (MCM) is to provide the power supply for two traction motors in parallel.
Generating three phase AC voltage supply for train auxiliary system, supplying DC voltage for battery charger , train lighting and computer-control equipment.
The main function of the High Voltage Box (HVB) is to charge the Line Capacitor and to connect the line voltage to the converters.
The traction motor transforms electrical power into mechanical power during tractive mode and transforms mechanical power into electrical power during braking.