Pantograph and Conductor Rail Testing
Train and railways are operated either with either DC or AC power. They are operated at different voltage levels (250 V up to 66 kV) and different line frequencies (16.7Hz, 25Hz, 50Hz, 60Hz). The trains get the power whether via a pantograph which is connected to overhead lines or via a conductor rail (3rd rail).
Testing the power supply system requires a high-precision DAQ system that supports a wide range of input signals like the voltage, current, acceleration, GPS parameters, CAN-bus data, video, and displacement. Especially synchronized video is very important and useful for comprehensive analysis (Monitoring connection of pantograph to overhead line, the interaction of rails and conductor rail, etc.). In addition to the high voltages also high operating currents up to 8000A are present which require special current transducers (AC and DC).