No. Parameter Description Remarks
11 RCD enhancement RCD refers to the residual current
of the inverter to the ground. To
ensure device and personal safety,
RCD should be limited to the
specied value in the standard. If
an AC switch with a residual
current detection function is
installed outside the inverter, this
function should be enabled to
reduce the residual current
generated when the inverter is
running, thereby preventing the
AC switch from misoperations.
-
12 PID protection at
night
When the inverter outputs
reactive power at night and this
parameter is set to Enable, the
inverter will shut down
automatically if it detects
abnormal status of the PID
compensation.
-
13 HVRT HVRT is short for high voltage
ride-through. When the grid
voltage is abnormally high for a
short time, the inverter cannot
disconnect from the power grid
immediately and has to work for
some time.
-
14 HVRT triggering
threshold (V)
Species the threshold for
triggering HVRT. The threshold
settings should meet the local
grid standard.
This parameter is displayed
when HVRT is set to Enable.
15 HVRT gradient K1 During HVRT, 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 HVRT
gradient K1 to 2, the increment
of positive-sequence reactive
current generated by the solar
inverter is 20% of the rated
current when the AC voltage
increases by 10% during HVRT.
SUN2000-(100KTL, 110KTL, 115KTL)-M2
User Manual 7 Man-Machine Interactions
Issue 02 (2022-06-30) Copyright © Huawei Technologies Co., Ltd. 75
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