Huawei SmartLogger3000 - Page 134

Parameter Description
Reactive power
compensation (cosφ-P)
trigger voltage (%)
Species the voltage threshold for triggering reactive power
compensation based on the cosφ-P curve.
Reactive power
compensation (cosφ-P) exit
voltage (%)
Species the voltage threshold for exiting reactive power
compensation based on the cosφ-P curve.
Protection Parameters
Parameter Description
Insulation resistance
protection threshold (MΩ)
To ensure device safety, the inverter detects the insulation
resistance of the input side with respect to ground when it starts a
self-check. If the detected value is less than the preset value, the
inverter does not connect to the grid.
Voltage unbalance
protection threshold (%)
Species the inverter protection threshold when the power grid
voltage is unbalanced.
Phase protection point (º) The Japanese standard requires that during passive islanding
detection, protection should be triggered if an abrupt voltage
phase change is detected.
Phase angle oset
protection
The standards of certain countries and regions require that the
inverter needs to be protected when the phase angle oset of the
power grid three phases exceeds a certain value.
10-min overvoltage
protection threshold (V)
Species the 10-minute overvoltage protection threshold.
10-min overvoltage
protection duration (ms)
Species the 10-minute overvoltage protection duration.
Level-N OV protection (Hz) Species the level-N grid overvoltage protection threshold.
Level-N OV protection time
(ms)
Species the level-N grid overvoltage protection duration.
Level-N UV protection (Hz) Species the level-N grid undervoltage protection threshold.
Level-N UV protection time
(ms)
Species the level-N grid undervoltage protection duration.
Level-N OF protection (Hz) Species the level-N grid overfrequency protection threshold.
Level-N OF protection time
(ms)
Species the level-N grid overfrequency protection duration.
Level-N UF protection (Hz) Species the level-N grid underfrequency protection threshold.
Level-N UF protection time
(ms)
Species the level-N grid underfrequency protection duration.
SmartLogger3000
User Manual 6 WebUI Operations
Issue 10 (2022-08-20) Copyright © Huawei Technologies Co., Ltd. 122