The test results in this paper show that ZnO arrestor unit with a series gap for transmission lines is able to cut off power frequency current quickly before the circuit breaker operate.
试验研究证实：氧化锌限流元件串联放电间隙能够在断路器动作之前，快速截断工频续流。
Cut off all the power after test.
试验结束后应切断所有电源。
Power-off memory function: All test data can't be lost when power cut. It can charge continuous re power-on and no need to set parameter and estate.
掉电记忆功能：掉电后所有测试数据不丢失，重新加电后无须设定参数和状态，可继续充电。
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