Parameter Description Remarks
Buzzer If this parameter is set to Enable, the
buzzer sounds when the DC input cable is
incorrectly connected. If this parameter is
set to Disable, the buzzer does not sound
when the DC input cable is incorrectly
connected.
-
LVRT LVRT is short for low voltage ride-through.
When the grid voltage is abnormally low
for a short time, the inverter cannot
disconnect from the power grid
immediately and has to work for some
time.
-
Threshold for
triggering LVRT
(V)
Species the threshold for triggering LVRT.
The threshold settings should meet the
local grid standard.
This parameter is displayed
when LVRT is set to Enable.
LVRT
compensation
power factor of
reactive power in
positive sequence
During LVRT, the solar inverter 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 solar
inverter.
For example, if you set LVRT
compensation power factor of reactive
power in positive sequence to 2, the
increment of positive-sequence reactive
current generated by the solar inverter is
20% of the rated current when the AC
voltage decreases by 10% during LVRT. If
you set LVRT compensation power factor
of reactive power in positive sequence
to 0, the increment of positive-sequence
reactive current generated by the solar
inverter is 0 regardless of how much the
AC voltage decreases during LVRT.
SmartLogger3000
User Manual 6 WebUI Operations
Issue 10 (2022-08-20) Copyright © Huawei Technologies Co., Ltd. 128