94
G
Grriid
d--c
co
on
nn
ne
ec
cttiio
on
n p
piin
ntt vvo
olltta
ag
ge
e
R
Re
eq
qu
uiirre
em
me
en
nttss
1.1U
pu
<U
T
<1.2U
pu
Operate for at least 10s
1.2U
pu
≤U
T
≤1.3U
pu
Operate for at least 0.5s
Note: U
T
is the grid-connection point voltage; Upu is the grid-connection point nominal
voltage.
ffiig
gu
urre
e 1
11
1--2
2 High voltage withstand requirements
Note: T1, T2, U1, and U2 are all settable parameters.
Sungrow’s inverter meets the abovementioned requirements.
11.6 Temperature Derating
11.7 MPPT
Maximum Power Point Tracking (MPPT) is a technique that the inverter uses to get the
maximum power from the PV arrays. PV arrays have a complex relationship between
System Manual
Summary of Contents for SG3125HV-20
Page 2: ......