Huawei SUN2000 - Page 111

SUN2000-(3.8KTL-11.4KTL)-USL0
User Manual
7 Operations on the Local FusionHome App
Issue 01 (2018-05-21)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
104
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The protection parameter values vary with the grid code.
Table 7-9 Description of protection parameters
Parameter
Description
Value Range
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.
[0.02, 1.5]
Unbalance voltage
protection
Specifies the SUN2000
protection threshold in the
case of unbalanced power
grid voltage.
[0, 50]
Level-1 OV protection
threshold (V)
Specifies the level-1
overvoltage protection
threshold.
[1xVn, 1.5xVn]
Level-1 OV protection
duration (ms)
Specifies the level-1
overvoltage protection
duration.
[50, 7200000]
Level-2 OV protection
threshold (V)
Specifies the level-2
overvoltage protection
threshold.
[1xVn, 1.5xVn]
Level-2 OV protection
duration (ms)
Specifies the level-2
overvoltage protection
duration.
[50, 7200000]
Level-1 UV protection
threshold (V)
Specifies the level-1
undervoltage protection
threshold.
[0.15xVn, 1xVn]
Level-1 UV protection
duration (ms)
Specifies the level-1
undervoltage protection
duration.
[50, 7200000]
Level-2 UV protection
threshold (V)
Specifies the level-2
undervoltage protection
threshold.
[0.15xVn, 1xVn]
Level-2 UV protection
duration (ms)
Specifies the level-2
undervoltage protection
duration.
[50, 7200000]
Level-1 OF protection
threshold (Hz)
Specifies the level-1
overfrequency protection
threshold.
[1xFn, 1.15xFn]