JSH series lightning arrester online monitorDetailed product description：

The JSH series online monitor (formerly known as lightning arrester leakage current and action recorder) is an online monitoring instrument for lightning arresters in AC high-voltage power systems. The instrument integrates a milliampere meter and a counter, and is connected in series in the grounding circuit of the lightning arrester. The milliampere meter in the monitor is used to monitor the peak leakage current through the lightning arrester under operating voltage, which can effectively detect whether the inside of the lightning arrester is damp or whether the internal components are abnormal; The counter records the number of actions of the lightning arrester under overvoltage.

The JSH-3 monitor has made significant technological improvements based on the JSH-2 model, including redesigning the pointer action counter and increasing the counter panel for easy remote observation; A leakage current warning device composed of light-emitting tubes has been added to more clearly alert patrol personnel to pay attention and observe at night. Reduced the external dimensions, improved the installation position, making the appearance more beautiful and the installation more convenient; An external measuring socket (optional) has been set up: making it easy to connect the external measuring instrument in series with the leakage current circuit. For example, introducing cables into the central control room for centralized monitoring; Or connect a resistive current measuring instrument to implement online monitoring of the lightning arrester without power outage.