Solar Grid Interactive Inverters with Batteries

Grid Interactive Inverters with batteries provide a means of directly connecting DC renewable sources such as solar photovoltaic arrays and small wind turbines to the electricity grid. Grid connection ensures that all renewable energy generated can be utilised. Surplus electricity not used locally is exported through the grid to other electricity users. Batteries provide reliable power when the grid supply fails. Systems with batteries can operate in one of several configurations:

Without local load input:
The inverter starts and synchronises to the grid when renewable input becomes available, and shuts down when renewables are too small to justify operation.This is useful to interface a wind turbine to the grid, where the battery provides buffer storage against wind gusts and limits the maximum DC input.

With local load supplied from the grid during normal operation:

If the grid fails, the inverter disconnects and local load can be supplied from the battery.

With local load supplied from the grid and renewables during normal operation:

If the renewables exceed local load, excess power is exported. If they are less than the local load, the shortage will be supplied from the grid. If the grid fails, the inverter disconnects from the grid; local load can be suplied from the battery and from renewable input. The battery will discharge if renewables are less than local load, and will charge when they exceed local load.
3 - 5 kW Solar Grid Battery Interactive Inverter
Common to all units: sgi1
  • Automatic Bypass: Supply is maintained by the generator if the inverter is off line.
  • Data Logging Remote Access: RS232 port, standard data logging and remote access via modem, satellite, GSM and CDMA technology.
  • Cooling: Convection and thermostatically controlled fans.
  • Enclosures: Electronics IP50, transformer and heatsink IP23. Weatherproof enclosures or rack mounting are available on request.
  • Protection: Over current trip, over voltage, over temperature, reverse polarity, fast electronic trip, transient over voltage protection.

* AC output voltages of 110, 120, 220 and 230 are available on application.
* Other DC voltages between 24 VDC and 120 VDC are available on application.
Standards:All inverters are designed to AS3100 / AS2604 / AS61000.3.5 and the draft AS/NZ standard for grid connect inverters.
Refer to sales staff for details of compliance.

Model SGB-3-24 SGB-3-48 SGB-5-48 SGB-5-110 SGB-5-120
Input voltages * 24 VDC 48 VDC 48 VDC 110 VDC 120 VDC
Operating DC voltage range 22 - 31.5 V 44 - 63 V 44 - 63 V 98 - 158 V 98 - 158 V
Output voltage & frequency * 240 Vac
50 or 60 Hz
240 Vac
50 or 60 Hz
240 Vac
50 or 60 Hz
240 Vac
50 or 60 Hz
240 Vac
50 or 60 Hz
Continuous output @ 40°C 2.7 kW 3 kW 5 kW 5 kW 5 kW
1 hour rating @ 40°C 3.2 kW 3.6 kW 6 kW 6 kW 6 kW
½ hour rating @ 40°C 3.5 kW 3.9 kW 6.5 kW 6.5 kW 6.5 kW
Surge rating 6 kW 6 kW 10 kW 10 kW 10 kW
Maximum charge current 90 A 50 A 83 A 35 A 35 A
Peak efficiency > 90 % > 92 % > 92 % > 94 % > 94 %
Power factor range 0 - 1 0 - 1 0 - 1 0 - 1 0 - 1
Idle power 35 W 35 W 50 W 50 W 50 W
Standby power < 10 W < 10 W < 15 W < 15 W < 15 W
Integrated isolation AC/DC cct breaker cct breaker cct breaker cct breaker cct breaker
Indicators LED & LCD LED & LCD LED & LCD LED & LCD LED & LCD
Inverter mass 60 kg 60 kg 70 kg 70 kg 70 kg
Internal grid contactor Yes Yes Yes Yes Yes

10 - 15 kW Solar Grid Battery Interactive Inverter
Common to all units: solar grid interactive
  • Automatic Bypass: Supply is maintained by the generator if the inverter is off line.
  • Data Logging Remote Access: Standard data logging and remote access via modem, satellite, GSM and CDMA technology.
  • Low distortion, high power load presented to generator during charging for best generator performance.
  • Cooling: Convection and thermostatically controlled fans.
  • Enclosures: Electronics IP50, transformer and heatsink IP23. Weatherproof enclosures or rack mounting are available on request.
  • Protection: Over current trip, over voltage, over temperature, reverse polarity, fast electronic trip, transient over voltage protection.

Standards:All inverters are designed to AS3100 / AS2604 / AS61000.3.5 and the draft AS/NZ standard for grid connect inverters.
* AC output voltages of 110, 120, 220 and 230 are available on application.
* DC operating voltage range 92% to 130% of nominal.
Refer to sales staff for details of applicable compliance testing.

Model SGB-10-108
SGB-10-120
SGB-12-108
SGB-12-120
SGB-15-120
Input voltages 108 / 120 VDC 108 / 120 VDC 120 VDC
Output voltage & frequency* 240 Vac
50 or 60 Hz
240 Vac
50 or 60 Hz
240 Vac
50 or 60 Hz
Continuous output @ 40°C 10 kW 12 kW 15 kW
1 hour rating @ 40°C 12 kW 14 kW 18 kW
½ hour rating @ 40°C 13 kW 15.6 kW 19.5 kW
Surge rating 22 kW 22 kW 30 kW
Maximum charge current 80 A 80 A 80 A
Harmonic distortion < 4 % < 4 % < 4 %
Peak efficiency > 94 % > 94 % > 94 %
Idle power 96 W 110 W 110 W
Standby 30 W 30 W 30 W
Autostart on demand Yes Yes Yes
Mimimum start load 12 - 15 W 12 - 15 W 12 - 15 W
Integrated isolation AC/DC cct breaker cct breaker cct breaker
Indicators LED & LCD LED & LCD LED & LCD
Inverter mass 260 kg 260 kg 280 kg
Cooling system 5 fans 5 fans 5 fans
Data logging Yes Yes Yes
Internal AC contactor Yes Yes Yes
Remote access RS232 RS232 RS232

15 - 40 kW Solar Grid Battery Interactive Inverter
Common to all units: sgi
  • Automatic Bypass: Supply is maintained by the generator if the inverter is off line.
  • Operating DC voltage range: 92 % to 130 % of nominal.
  • Low distortion, high power load presented to generator during charging for best generator performance
  • Data Logging Remote Access: RS232 port, standard data logging and remote access via modem, satellite, GSM and CDMA technology.
  • All units are available with AC output voltages of 220 / 230 / 240 VAC, at 50 or 60 Hz (240 / 415, 230 / 380, three phase plus neutral connection), 120 / 208 VAC on application.
  • Cooling: Convection and thermostatically controlled fans.
  • Enclosures: Electronics IP50, transformer and heatsink IP23. Weatherproof enclosures or rack mounting are available on request.
  • Protection: Over current trip, over voltage, over temperature, reverse polarity, fast electronic trip, transient over voltage protection.

Standards:All inverters are designed to AS3100 / AS2604 / AS61000.3.5 and the draft AS/NZ standard for grid connect inverters.
Refer to sales staff for deails of compliance.

Model SGB-15-48 SGB-15-108
SGB-15-120
SGB-20-108
SGB-20-120
SGB-25-108
SGB-25-120
SGB-30-108
SGB-30-120
SGB-40-120
Input voltages 48 VDC 108 / 120 V 108 / 120 V 108 / 120 V 108 / 120 V 120 VDC
Continuous output @ 40°C 15 kW 15 kW 20 kW 25 kW 30 kW 40 kW
1 hour rating @ 40°C 18 kW 18 kW 24 kW 30 kW 36 kW 48 kW
½ hour rating @ 40°C 19.5 kW 19.5 kW 26 kW 32.5 kW 39 kW 52 kW
Surge rating 30 kW 30 kW 40 kW 50 kW 60 kW 80 kW
Maximum change current 250 A 120 A 150 A 200 A 250 A 300 A
Peak efficiency > 91 % > 93 % > 93 % > 93 % > 93 % > 93 %
Power factor range 0 - 1 0 - 1 0 - 1 0 - 1 0 - 1 0 - 1
Total Harmonic Distortion < 4% < 4% < 4% < 4% < 4% < 4%
Idle power < 150 W < 150 W < 200 W < 250 W < 300 W 400 W
Integrated isolation AC/DC cct breaker cct breaker cct breaker cct breaker cct breaker cct breaker
Indicators LED & LCD LED & LCD LED & LCD LED & LCD LED & LCD LED & LCD
Inverter mass 210 kg 290 kg 310 kg 330 kg 350 kg 390 kg
Internal DC contactor Yes Yes Yes No No No