Traction Inverter Integrated Test Bench
Brief Introduction/Functions The traction inverter integrated test bench is located in the traction inverter maintenance workshop. It is used for static test of IGBT module of traction inverter for metro and electric passenger cars. Product Parameters/Key Technologies A. Gate-emitter leakage current IGES: 0.1-10uA ± 3% ± 0.1uA B. Collector-emitter current ICES: 0.1-30mA ± 5% ± 0.01mA C. Gate-emitter threshold voltage VGE (th): ± 15V ± 2%, ± 0.2V Application Cases Used for maintenance and testing of traction inverters for urban rail vehicles | |
Static Test Bench Of Bogie
Brief Introduction/Functions Static test bench of bogieSimulate vehicle loads on the bogie to adjust the suspension height to ensure even distribution of loads on all four wheels. Product Parameters/Key Technologies Maximum load application: 35t Number of hydraulic cylinders: 2 Adjustment range of secondary suspension loading force position: 1600 - 2200mm, positioning accuracy: ± 0.3mm Load accuracy: ± 0.5%. Wheelbase measurement range: 2100 - 2500mm Measurement accuracy: ± 0.2mm Wheel weight measurement range: 0 - 10t, measurement accuracy: ± 1.5 ‰ Centering accuracy of bogie in X and Y directions: ± 0.5 mm Flatness of four-wheel weight measuring devices (rolling measurement): 0.2mm. Application Cases Used for static load maintenance and testing of bogies for urban rail vehicles | |
Gearbox Test Bench
Brief Introduction/Functions The objects under test on the gearbox test bench are gearboxes for rail transit (including but not limited to gearboxes of EMUs, high-speed trains, and metros) or other similar gearboxes under test with power within the scope of the system. Product Parameters/Key Technologies (1) Power supply: 3AC 690V ± 10% 50Hz; 3AC 380V 50Hz. (2) Maximum test power of system: 900kW. (3) The system provides 120% of power overload test for gearbox under test at rated speed. (4) The system has the ability to operate for a long time under both forward and reverse operation conditions, with continuous operating time of no less than 300 hours. (5) Driver loading system speed stability: n ≤ maximum speed ± 0.1%, torque response time < 5ms, torque stability < ± 2.0%. Application Cases Used for maintenance and testing of gearboxes for urban rail vehicles | |
Traction Motor Test Bench
Brief Introduction/Functions The traction motor test bench adopts advanced variable frequency voltage regulation technology to convert power frequency three-phase AC power supply into adjustable AC power supply required by traction motor. The control system is composed of highly integrated and high-performance large-scale logic units, which have functions of voltage and current dual closed-loop stepless speed regulation and good startup, speed regulation, and constant voltage control; Product Parameters/Key Technologies Input power supply: 50Hz 3 × 380V (± 10%) Output voltage: 0 - 600V AC adjustable, error < 0.2% Output current: 0 - 235A adjustable, error < 0.2% Output frequency: 0 - 110Hz adjustable, error < 0.2% Feedback frequency: 0 - 110Hz adjustable, error < 0.2% Maximum speed: 3345 r/min, error < 0.2% Braking time: 0 - 60 seconds adjustable, error < 0.2% Operating time: 0 - 5 hours adjustable, error < 0.2% Temperature measurement range: -20 ℃ - 200 ℃, error < 0.2% Accuracy grade of instrument: Grade 0.2 or above Application Cases Used for maintenance and testing of traction motors for urban rail vehicles | |
Door Test Bench Brief Introduction/Functions The door test bench is set in the door maintenance area for performance test of the door mechanism of metro vehicle after maintenance. Various performance parameter are tested for a single door mechanism of metro train passenger compartment. Product Parameters/Key Technologies Input power supply: AC 220V 50Hz Output power supply: DC 110V Measuring range: 30 N~500 N Size of test bench: 3230 * 1000 * 2515mm (adjust as per the door) Size of control cabinet: 1480*800*970mm Application Cases Used for maintenance and testing of doors for urban rail vehicles | |
Integrated Electrical Equipment Test Bench
Brief Introduction/Functions The integrated electrical equipment test bench is used for the operation performance test and parameter setting of various AC and DC contactors, intermediate relays, voltage relays, current relays, thermal relays, air switches, time relays and other electrical switches of electric passenger cars. Product Parameters/Key Technologies Power supply: AC 380V/50HZ/TN-SInterface for contactorsDC 0-150V (continuously adjustable), error < 0.2%;Current DC 0 - 20A, error < 0.2%;AC 0-380V (continuously adjustable), error < 0.2%;Current: AC 0-20A;Input/output interface: At least 1 group, with at least 10 pairs in each group (half normally open and half normally closed). Interface for relaysDC 0-150V (continuously adjustable), error < 0.2%;Current: 0 - 20A; error < 0.2%;Input/output interface: General wiring form: at least 1 group, with at least 20 pairs per group;Plug-in testing device: At least 1 set, with at least 20 pairs in each group (half normally open and half normally closed). Interface for air switchCurrent: 0 - 100A; error < 0.2%;Input/output interface: At least 1 group, with at least 5 pairs per group. Time measurement range: O-10 minutes, test error < 1ms. Measurement range of contact resistance: 0-10KΩ, test error < lmΩ. Measurement range of insulation resistance : 0-300MΩ, test error < lΩ. Measurement range of coil resistance: 0-1M Ω, test error < 1Ω. Application Cases Used for maintenance and testing of various AC and DC contactors, intermediate relays, voltage relays, current relays, thermal relays, air switches, time relays and other electrical switches of urban rail vehicles | |
High-Speed Circuit Breaker Test Bench
Brief Introduction/Functions The operation of the high-speed circuit breaker is tested on the high-speed circuit breaker test bench to test its performance. Product Parameters/Key Technologies Power supply voltage: Three-phase five-wire AC380V/50 Hz Power: 20kW Stabilized power supply: DC0 - 150V/10A DC overcurrent: DC0 - 2,500A/6V Application Cases Used for maintenance and testing of high-speed circuit breakers for urban rail vehicles | |
Pantograph Test Bench Brief Introduction/Functions The maximum pantograph lifting height, static pressure, static pressure characteristic curve during its operating stroke (including pressure difference curve at the same height and pressure difference in the same direction), pantograph rising / lowering time, and air tightness are tested on the pantograph test bench. Product Parameters/Key Technologies Power supply input: AC220V ± 10%, 50Hz 3kVA Pressure input: ≥ 0.6MPa DC output: DC110V 2A Pressure output: 0 - 1.0MPa Tension measurement range: 0 - 200N Height: 0 - 3,000mm Pressure: 0-1.6MPa Application Cases Used for maintenance and testing of pantograph for urban rail vehicles | |
Master Controller Test Bench
Brief Introduction/Functions The contact condition of the potentiometer of the master controller during the operation of the control handle can be tested on the master controller test bench, and the output voltage can be measured. It is required to automatically record the measured voltage output and contact status, automatically generate reports, and display them intuitively on the display screen. Several continuous tests can be performed. Product Parameters/Key Technologies Input power supply: AC 220V (± 10%), 50HzPower supply of master controller: Voltage: DC24V; error < 0.2%;Voltage: DC15V; error < 0.2%;Output voltage of potentiometer of master controller: DC 0-10V; error < 0.2%;Measurement range of contact resistance : 0-5KΩ, error < 1mΩ; Detection accuracy: above 0.1% Fs;Accuracy grade of instrument: Grade 0.2 or above; Application Cases Used for maintenance and testing of master controllers for urban rail vehicles | |
Voltage/Current Sensor Test Bench
Brief Introduction/Functions The voltage/current sensor test bench is mainly suitable for testing the accuracy and linearity of voltage and current sensors in urban rail vehicles. Product Parameters/Key Technologies Power supply: Single-phase AC 220V ± 10%Output current of current source: 0 - 2,000AResolution: 1AOutput voltage of voltage source: 0 - 2,000VResolution: 1V Application Cases Used for maintenance and testing of voltage and current sensors for urban rail vehicles |