铁路安全继电器需要测试的主要电气参数包括：工作值、释放值、反向工作值等。
The electrical characteristics of railway safety relay are mainly involved with operating value, releasing value, reversing value and so on.
主要具有设备电气参数仿真、自动及交互工作方式、模拟设备主要故障、模拟设备拆装的功能。
It can simulate the electric parameter, automatism and alternation working, simulated the mainly fault and disassembling, assembling.
电气参数和机械参数是影响小型继电器直流电弧开断性能的主要因素。
Electric and mechanism parameters are the main factors influencing the direct current arc breaking performance of small relays.
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