Parameter
Description
Phase angle offset protection
The standards of certain countries and regions require that the
device needs to be protected when the phase angle offset of
the power grid three phases exceeds a certain value.
10-minute UV protection
Specifies the 10-minute undervoltage protection threshold.
10-minute UV protection time
Specifies the 10-minute undervoltage protection duration.
10 minute OV protection (V)
Specifies the 10-minute overvoltage protection threshold.
10 minute OV protection time
(ms)
Specifies the 10-minute overvoltage protection duration.
Level-N OV protection (V)
Specifies the level-N grid overvoltage protection threshold.
Level-N OV protection time
(ms)
Specifies the level-N grid overvoltage protection duration.
Level-N UV protection (V)
Specifies the level-N grid undervoltage protection threshold.
Level-N UV protection time
(ms)
Specifies the level-N grid undervoltage protection duration.
Frequency change rate
protection
If this parameter is set to Enable, the device is protected when
the power grid frequency changes too fast.
Frequency change rate
threshold (Hz/s)
Specifies the frequency change rate protection threshold.
Duration threshold (s) for
frequency change rate
protection
The device is protected when the grid frequency change
duration exceeds the value.
Level-N OF protection (Hz)
Specifies the level-N grid overfrequency protection threshold.
Level-N OF protection time
(ms)
Specifies the level-N grid overfrequency protection duration.
Level-N UF protection (Hz)
Specifies the level-N grid underfrequency protection threshold.
Level-N UF protection time
(ms)
Specifies the level-N grid underfrequency protection duration.
NO TE
N can be 1, 2, 3, 4, 5, or 6.
SmartLogger3000
User Manual
6 WebUI Operations
Issue 10 (2022-08-20)
Copyright © Huawei Technologies Co., Ltd.
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