Sungrow SG2500HV-30, System Manual

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10.9.4 Islanding Protection ........................................................................ 74
10.9.5 Overload Protection ........................................................................ 74
10.9.6 Ground Protection .......................................................................... 74
10.9.7 Module Over-temperature Protection.............................................. 75
10.9.8 Internal Over-temperature Protection.............................................. 75
11 Troubleshooting
....................................................................................... 76
11.1 Safety Instructions.................................................................................... 76
11.2 Checking Fault ........................................................................................ 76
11.3 Fault and Troubleshooting on the Inverter ................................................. 77
11.4 Other Fault and Troubleshooting .............................................................. 88
12 Routine Maintenance
............................................................................. 89
12.1 Safety Instructions.................................................................................... 89
12.2 Maintenance ............................................................................................ 90
12.2.1 Introduction .................................................................................... 90
12.2.2 Maintenance Interval ...................................................................... 90
12.3 Cleaning the Inverter ................................................................................ 94
12.3.1 Introduction .................................................................................... 94
12.3.2 Cleaning Interval ............................................................................. 94
12.3.3 Cleaning the Internal Dust ............................................................... 94
12.3.4 Cleaning the Foundation ................................................................. 95
12.3.5 Checking and Cleaning the Air Inlets/outlets.................................... 95
12.3.6 Cleaning the Surface of the Inverter ................................................ 96
12.3.7 Checking the Lock and Hinge ......................................................... 96
12.3.8 Checking the Sealing Strip .............................................................. 96
12.4 Painting Make-up Measures..................................................................... 96
12.5 Replacing the Electrical Components ..................................................... 100
12.5.1 Replacing DC Fuses ..................................................................... 100
13 Periodic Actions
..................................................................................... 103
13.1 Opening the Inverter Door ...................................................................... 103
13.2 Closing the Inverter Door ........................................................................ 104
14 Appendix
.................................................................................................. 105
14.1 System Parameters................................................................................ 105
14.2 Tightening Torques................................................................................. 109
14.3 Exclusion of Liability ............................................................................... 109
14.4 Contact Information ............................................................................... 110