Huawei SUN2000-M3 User Manual

Figure H-1 PV string access detection
No. Parameter Description Remarks
1 PV string access
detection
PV string access detection is set to Disable by
default. After the inverter connects to the power grid
properly, set this parameter to Enable.
-
2 Startup current When the current of all connected PV strings reaches
the preset value, the PV string access detection
function is enabled.
NOTE
Startup current setting rules:
● Startup current = I
sc
(S
tc
) x 0.6 (rounded up). For details
about I
sc
(S
tc
), see the PV module nameplate.
● Default startup current (5 A): applicable to the scenarios
where the short-circuit current I
sc
(S
tc
) is greater than 8 A
for the monocrystalline and polycrystalline PV modules.
This
parameter
is
displayed
when PV
string
access
detection
is set to
Enable.
3 Startup current for 2-
in-1 detection
When the current of a PV string reaches Startup
current for 2-in-1 detection, the PV string is
automatically identied as 2-in-1.
The default value is recommended.
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual H PV String Access Detection
Issue 11 (2023-01-10) Copyright © Huawei Technologies Co., Ltd. 111

Huawei SUN2000-M3 Specifications

General

Type	String Inverter
Rated AC Grid Frequency	50 Hz / 60 Hz
DC Connection Type	MC4
Protection Degree	IP65
Cooling Method	Natural convection
Category	Inverter
Adjustable Power Factor Range	0.8 leading - 0.8 lagging
Total Harmonic Distortion (THD)	≤ 3 %
Operating Temperature Range	-25°C to 60°C
Communication	RS485
Efficiency	98%
Protection Level	DC reverse polarity protection, AC overcurrent protection, AC short-circuit protection, Overvoltage protection, Insulation monitoring, Residual current monitoring unit, Arc fault detection