| 摘要 |
PURPOSE: An automatic testing device of a relay for a railway vehicle is provided to execute efficient history management for a relay. CONSTITUTION: A first power converter(20) converts a voltage which is applied from a power supply part to a fixed voltage. A voltage type relay tester(22) tests the operation and property of the relay by receiving the voltage from the first power converter. A current type relay tester(32) tests the operation and property of the relay by receiving a current from a current adjusting part. A second power converter(40) converts a power source which is applied from the power supply part to a preset value. When the power source which is applied from the second power converter is an abnormal state, a dual relay test part(42) tests the operation and property of the relay. A third power converter(50) converts a power source which is applied from the power supply part to a preset set value. |
