Huawei SUN2000-40KTL-M3 User Manual

Figure I-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 I PV String Access Detection
Issue 18 (2024-03-10) Copyright © Huawei Technologies Co., Ltd. 122

Huawei SUN2000-40KTL-M3 Specifications

General

Max. Efficiency	98.7%
European Efficiency	98.4%
Max. Input Voltage	1100 V
MPPT Operating Voltage Range	200 V - 1000 V
Max. Input Current per MPPT	26 A
Number of MPPTs	4
Rated Output Power	40000 W
Rated AC Voltage	400 V
Rated AC Frequency	50 Hz / 60 Hz
Adjustable Power Factor Range	0.8 leading - 0.8 lagging
Total Harmonic Distortion (THD)	<3%
DC Reverse-Polarity Protection	Yes
AC Overcurrent Protection	Yes
DC Surge Protection	Type II
AC Surge Protection	Type II
Insulation Monitoring	Yes
Residual Current Monitoring	Yes
DC Switch	Yes
Protection Class	IP66
Operating Temperature Range	-25°C to +60°C
Relative Humidity (Operating)	0% - 100%
Cooling	Natural Convection
Max. Apparent AC Power	44000 VA
AC Voltage Range	320 V - 480 V
Operating Altitude	4000 m
Display	LED Indicators
Communication	RS485, WLAN
Weight	43 kg
Max. DC Power	60000 W