Huawei SUN2000 User Manual page 111

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