Sungrow SG2K5-S User Manual

User Manual 2 Product Description
11
specified observation time. The setting of conditions depends on whether the
connection is due to a normal operational start-up or an automatic reconnection
after tripping of the interface protection.
When the frequency level is out of the operational levels, the inverter will
disconnect from the grid. If a disturbance lasts less than the required protection
time, the inverter can reconnect to the grid if the frequency level goes back to
normal levels after the disturbance.
For Countries except “IT”
Grid frequency, Hz
F1 F2 FmaxFmin Fn
Normal operation
Start-up
Standby
Standby
F3 F4Fn
Reconnection
Standby Standby
Grid frequency, Hz
Condition 1: initial start-up Condition 2: reconnection after protection
FmaxFmin
Normal operation
Fig. 2-6 Inverter Action related to Grid Frequency (“DE” for example)
Tab. 2-7 Operational Frequency Parameter Description
Parameter
Description
Grid-connection
F1
The lower frequency limit for initial start-up.
F2
The upper frequency limit for initial start-up.
F3
The lower frequency limit for reconnection.
F4
The upper frequency limit for reconnection.
t
f
Minimum observation time.
k
f
Connection gradient.
Protection
F
min
Under-frequency protection value.
F
max
Over-frequency protection value.
T
min
Under-frequency protection time.
T
max
Over-frequency protection time.
Tab. 2-8 Default Values of Operational Frequency Parameter
Parameter
DE
FR1
FR2
FR3
BE
LUX
NL,
EU,
PL
F1 (Hz)
47.52
47.52
47.52
59.90
47.52
47.52
49.50
F2 (Hz)
50.10
50.10
50.10
60.10
50.10
50.10
50.10
F3 (Hz)
47.52
47.52
47.52
59.90
47.52
47.52
49.50
F4 (Hz)
50.10
50.05
50.05
60.10
50.05
50.05
50.05
t
f
(s)
60
60
60
60
60
60
60

Sungrow SG2K5-S Specifications

General

Brand	Sungrow
Model	SG2K5-S
Category	Inverter
Language	English