Sungrow SH3K6 - Page 26

3 Function Description User Manual
18
voltage level goes back to normal levels after the disturbance.
Grid voltage, V
V1 V2 VmaxVmin Vn
Normal operation
Start-up
Standby
Standby
V3 V4Vn
Reconnection
Standby Standby
Grid voltage, V
Condition 1: initial start-up Condition 2: reconnection after protection
VmaxVmin
Normal operation
Fig. 3-3 Inverter Action related to Grid Voltage (“DE” for example)
Tab. 3-1 Operational Voltage Parameter Description
Parameter
Explanation
Grid-connection
V1
Lower voltage limit for initial start-up
V2
Upper voltage limit for initial start-up
V3
Lower voltage limit for reconnection
V4
Upper voltage limit for reconnection
t
v
Minimum observation time
k
v
Connection or recovery gradient
Protection
V
min
Under-voltage protection value
V
max
Over-voltage protection value
T
min
Under-voltage protection time
T
max
Over-voltage protection time
Tab. 3-2 Default Values of Operational Voltage Parameter
Parameter
DE
BE
LUX
NL
IT
V1 (V)
195.5
195.5
195.5
195.5
195.5
V2 (V)
253.0
253.0
253.0
253.0
253.0
V3 (V)
195.5
195.5
195.5
195.5
195.5
V4 (V)
253.0
253.0
253.0
253.0
253.0
t
v
(s)
60
60
60
60
30 or 300
(3)
k
v
25 % Pn/min or
10 % Pn/min
(1)
Not applicable or 10 %
Pn/min
(2)
20 % Pn/min
V
min
(V)
184.0 for stage I
103.5 for stage II,
184.0
184.0
184.0
195.5 for
stage I
34.5 for
stage II
V
max
(V)
287.5
264.5
264.5
253.0
264.5
T
min
(s)
3.0 for stage I,
0.3 for stage II
0.2
1.35
2.0
1.5 for stage
I,
0.2 for stage
II
T
max
(s)
0.1
0.2
0.15
2.0
0.2