SUN2000-(3.8KTL-11.4KTL)-USL0
User Manual
7 Operations on the Local FusionHome App
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
The protection parameter values vary with the grid code.
Table 7-9 Description of protection parameters
Ins R protection threshold
(MΩ)
To ensure device safety, the
SUN2000 detects the
insulation resistance of the
input side to the ground
when it starts a self-check. If
the detected value is less
than the preset value, the
SUN2000 does not start.
Unbalance voltage
protection
Specifies the SUN2000
protection threshold in the
case of unbalanced power
grid voltage.
Level-1 OV protection
threshold (V)
Specifies the level-1
overvoltage protection
threshold.
Level-1 OV protection
duration (ms)
Specifies the level-1
overvoltage protection
duration.
Level-2 OV protection
threshold (V)
Specifies the level-2
overvoltage protection
threshold.
Level-2 OV protection
duration (ms)
Specifies the level-2
overvoltage protection
duration.
Level-1 UV protection
threshold (V)
Specifies the level-1
undervoltage protection
threshold.
Level-1 UV protection
duration (ms)
Specifies the level-1
undervoltage protection
duration.
Level-2 UV protection
threshold (V)
Specifies the level-2
undervoltage protection
threshold.
Level-2 UV protection
duration (ms)
Specifies the level-2
undervoltage protection
duration.
Level-1 OF protection
threshold (Hz)
Specifies the level-1
overfrequency protection
threshold.