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Proceed as follows to set the mode if the Anti-PID mode is enabled:
step 1 Tap “Function” from the default menu.
step 2 Tap “Set-parameter”.
step 3 Tap “Pro-parameter” after entering the correct password.
step 4 Click Next to find the page with “Anti-PID mode” and select the mode by the drop-down list
(Suppression/Repair).
Select according to the on-site situation.
- - End
10.10.3 PID Repair
Make sure the “Anti-PID mode” in the protection parameter of the MV Station is
“Repair” when enabling the PID repair function.
If the MV Station is in deep standby state or the repair process is interrupted, user can
enable the repair function manually from the LCD as follows:
step 1 Tap “Function” from the default menu.
step 2 Tap “Set-parameter”.
step 3 Tap “Pro-parameter” after entering the correct password.
step 4 Click Next to find the page with “PID repair” and click to enable the manual repair.
- - End
If there is Key stop or Emergency stop or a device fault during the repair process,
the repair process will automatically stop.
10.11 Insulation Monitoring Function
10.11.1 Introduction
Insulation resistance is a parameter important for safety operation. If the insulation
resistance is low, the direct contact protection and indirect contact protection may be failed;
meanwhile the fault current against the ground and the short circuit caused by low insulation
resistance may lead to electric fire, device damage or even physical hazards. Sungrow’s MV
Station is equipped with insulation resistance monitoring function to detect the system
insulation resistance in real time. If the resistance is detected to be low, it will send alarm at
the first time to remind the user and prevent potential hazards.
Insulation monitoring can be enabled by two modes, described below:
System Manual
