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发明公开
CN105425077A 一种便携式数字继电保护测试仪 无效 - 撤回

一种便携式数字继电保护测试仪
摘要：
本发明公开了一种便携式数字继电保护测试仪，包括中央处理单元、对时单元、光输出/输入单元和电池充电单元；所述对时单元、光输出/输入单元分别与中央处理单元连接；所述对时单元、光输出/输入单元、中央处理单元均与电池充电单元连接；中央处理单元还连接以太网和Wifi模块；对时单元用于矫正测试仪器的绝对时刻；光输入/输出单元用于将测试的模拟信号转换为数字信号；本发明设有无线接口，并设置有内置电源，使用更加方便；可以实现录波分析，并且能够测试过程层的时间特性。
摘要（英）：

The invention discloses a portable digital relay protection tester. The tester comprises a central processing unit, a time comparing unit, a light output/input unit and a cell charging unit. The time comparing unit and a light output/input unit are connected to the central processing unit respectively. The time comparing unit, the light output/input unit and the central processing unit are connected to the cell charging unit. The central processing unit is connected to an Ethernet and a Wifi module. The time comparing unit is used for correcting absolute time of a test apparatus. The light output/input unit is used for converting a test simulation signal into a digital signal. The tester is provided with a wireless interface and a built-in power supply so that usage is convenient. Recorded analysis can be realized and a time characteristic of a process layer can be tested.

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