1. The above content is the debugging of a primary loop. After the measurement and debugging of the above steps are completed, switch on the monitoring power supply.

2. After the monitor is powered on, check whether the monitor display is normal and whether each detection module works properly.

3. After the monitoring device is powered on normally, first check the alarm information on the monitoring monitor. If there is an alarm information, then check the related problems according to the alarm information.

4. After the main analog quantity and switching quantity information on the monitoring is checked and tested normally, the insulation alarm of the DC bus and the grounding resistance of the branch are tested. Generally, 25-100K resistance test can be used for 220V system, and 7-100K test can be used for 110V system.

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