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Parameter
Description
Remarks
Delayed
upgrade
This parameter is mainly used in the upgrade
scenarios where the power supply at DC side is
disconnected.
After the upgrade starts,
if Delayed upgrade is
set to Enable, the
upgrade package is
loaded first. After the DC
side power supply
recovers and the
activation conditions are
met, the device
automatically activates
the upgrade.
HVRT
HVRT is short for high voltage ride-through. When
the grid voltage is abnormally high for a short time,
the device cannot disconnect from the power grid
immediately and has to work for some time.
-
HVRT threshold
(V)
Specifies the threshold for triggering HVRT. The
threshold settings should meet the local grid
standard.
This parameter is
displayed when HVRT is
set to Enable.
Positive-
sequence
reactive power
compensation
factor in HVRT
During HVRT, the device needs to generate positive-
sequence reactive power to support the power grid.
This parameter is used to set the positive-sequence
reactive power generated by the device.
For example, if you set this parameter to 2, the
increment of positive-sequence reactive current
generated by the device is 20% of the rated current
when the AC voltage increases by 10% during HVRT.
Negative-
sequence
reactive power
compensation
factor in HVRT
During HVRT, the device needs to generate
negative-sequence reactive power to support the
power grid. This parameter is used to set the
negative-sequence reactive power generated by the
device.
For example, if you set this parameter to 2, the
increment of negative-sequence reactive current
generated by the device is 20% of the rated current
when the AC voltage increases by 10% during HVRT.
LVRT
LVRT is short for low voltage ride-through. When
the grid voltage is abnormally low for a short time,
the device cannot disconnect from the power grid
immediately and has to work for some time.
-
LVRT threshold
(V)
Specifies the threshold for triggering LVRT. The
threshold settings should meet the local grid
standard.
This parameter is
displayed when LVRT is
set to Enable.
SmartLogger3000
User Manual
6 WebUI Operations
Issue 10 (2022-08-20)
Copyright © Huawei Technologies Co., Ltd.
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