HIGH YIELD
Advanced three-level technology, max. inverter
efficiency 99 %
Effective cooling, full power operation at 45 ℃
SMART O&M
Integrated zone monitoring function for online analysis and
trouble shooting
Modular design, easy for maintenance
SAVED INVESTMENT
Low transportation and installation cost due to
outdoor design
DC 1500 V system, low system cost
Q at night function optional
SG3300/4400UD
ype designation
SG3300UD
SG4400UD
Input (DC)
Max. PV input voltage
1500 V
Min. PV input voltage / Startup input voltage
895 V / 905 V
MPP voltage range
895 V – 1500 V
No. of independent MPP inputs
3
4
No. of DC inputs
15 ( optional: 21 )
20 ( optional: 28 )
Max. PV input current
3 * 1435 A
4 * 1435 A
Max. DC short-circuit current
3 * 3528 A
4 * 3528 A
PV array configuration
Negative grounding or floating
Output (AC)
AC output power
3300 kVA @ 45 ℃
3399 kVA @ 40 ℃
3795 kVA @ 22.5 ℃
4400 kVA @ 45 ℃
4532 kVA @ 40 ℃
5060 kVA @ 22.5 ℃
Max. AC output current
3 * 1160 A
4 * 1160 A
Nominal AC voltage
630 V
AC voltage range
536 V – 693 V
Nominal grid frequency / Grid frequency range
50 Hz / 45 Hz – 55 Hz, 60 Hz / 55 Hz – 65 Hz
Harmonic (THD)
< 1.5 % ( at nominal power )
Power factor at nominal power / Adjustable power factor
> 0.99 / 0.8 leading – 0.8 lagging
Feed-in phases / AC connection
3 / 3
Efficiency
Max. efficiency / European efficiency
99.0 % / 98.8 %
Protection & Function
DC input protection
Load break switch + fuse
AC output protection
Circuit breaker
Overvoltage protection
DC Type II / AC Type II
Grid monitoring / Ground fault monitoring
Yes / Yes
Insulation monitoring
Yes
Surge protection
Yes
Q at night function
Optional
General data
Dimensions (W*H*D)
2340 mm * 2300 mm * 1550 mm
2900 mm * 2300 mm * 1550 mm
Weight
2.5 T
3.3 T
Topology
Transformerless
Degree of protection
IP65
Night power consumption
< 200 W
Operating ambient temperature range *
-35 ℃ - 60 ℃ ( > 45 ℃ derating )
Allowable relative humidity range
0 % – 100 %
Cooling method
Temperature controlled forced air cooling
Max. operating altitude
4000 m ( > 3000 m derating )
Display
LED indicators, Ethernet + WebHMI
Communication
Standard: RS485, Ethernet
Compliance
CE, IEC 62109, IEC 61727, IEC 62116, IEC 60068, IEC 61683, VDE-AR-N
4110:2018, VDE-AR-N 4120:2018, EN 50549-2, UNE 206007-1:2013, NTS 631,
UTE C15-712-1:2013
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Type designation
SG3300UD-MV-20
Input (DC)
Max. PV input voltage
1500 V
Min. PV input voltage / Startup input voltage
938 V / 950 V
MPP voltage range
938 V – 1500 V
No. of independent MPP inputs
3
No. of DC inputs
15 ( optional: 21 )
Max. PV input current
3 * 1435 A
Max. DC short-circuit current
3 * 3528 A
PV array configuration
Negative grounding or floating
Output (AC)
AC output power
3300 kVA @ 51 ℃, 3960 kVA @ 23 ℃
Max. inverter output current
3 * 1155 A
Max. AC output current
229 A
Rated voltage range
10 kV – 35 kV
Nominal grid frequency / Grid frequency range
50 Hz / 45 Hz – 55 Hz, 60 Hz / 55 Hz – 65 Hz
Harmonic (THD)
< 1.5 % ( at nominal power )
Power factor at nominal power / Adjustable power factor
>0.99 / 0.8 leading – 0.8 lagging
Feed-in phases / AC connection
3 / 3
Efficiency
Inverter max. efficiency / Inverter European efficiency
99.0 % / 98.7 %
Transformer
Transformer rated power
3300 kVA
Transformer max. power
3960 kVA
LV / MV voltage
0.66 kV / 0.66 kV / (10 – 35) kV
Impedance
7%（0 % - ± 10 %）@ 3300 kVA
Transformer vector
Dy11
TTransformer cooling method
ONAN ( Oil-natural, air-natural )
Oil type
Mineral oil ( PCB free )
Protection & Function
DC input protection
DC load switch + fuse
Inverter output protection
AC circuit breaker
AC MV output protection
AC circuit breaker
Surge protection
DC Type II / AC Type II
Grid monitoring / Ground fault monitoring
Yes / Yes
Insulation monitoring
Yes
Overheat protection
Yes
Q at night function
Optional
General data
Dimensions (W*H*D)
6058 mm * 2896 mm * 2438 mm
Weight
17.5 T
Degree of protection
Inverter: IP65 / Others: IP54
Auxiliary power supply
15 kVA ( optional: max. 30 kVA )
Operating ambient temperature range *
-35 ℃ – 60 ℃ ( > 51 ℃ derating )
Allowable relative humidity range
0 % – 100 %
Cooling method
Temperature controlled forced air cooling
Max. operating altitude
1000 m ( standard ) / > 1000 m ( optional )
Display
LED Indicators, WLAN + WebHMI
Communication
Standard: RS485, Ethernet
Compliance
CE, IEC 62109, IEC 61727, IEC 62116, IEC 60068, IEC 61683, IEC62271-202
