To the electrical power system reliability request high situation, USES two group of accumulator cell parallel operations, the floating power supply way generally.
在对电源系统可靠性要求较高的场合，一般采用两组蓄电池并联运行、浮充供电的方式。
Based on the differences of harmonic testing point, there are two control ways for shunt active filters, that is, the way of load current sensing and the way of power supply current sensing.
并联型有源滤波器根据其谐波检测点的不同，有两种控制方法。即负载电流检测控制方法和电源电流检测控制方法。
This paper introduces the working principle, realizing method, main functions and anti-intrusion measures of two-way signal power supply monitoring and failure logging devices.
介绍了双路信号电源监测装置的工作原理、实现方法、主要功能与抗干扰措施。
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