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With power categories ranging from 1.5 to 3.1 kW, the Fronius Galvo is perfect for households – and is especially suitable for self-consumption systems. The integrated energy management relay allows the self-consumption component to be maximised. A host of other smart features make the Fronius Galvo one of the most future-proof inverters in its class: for example, integrated datalogging, simple connection to the internet by WLAN, or plug-in card technology for retrofitting additional functions.

SNAP INVERTER TECHNOLOGY

The SnapINverter generation of inverters features a simple, standardised mounting system, making installation and maintenance easier than ever. A special feature in the design of the device is that the connection area is separate from the power stage set compartment, with both being installed separately. The remarkably light connection area and all its cabling is fitted to the wall first, followed by the power stage set. The innovative hinged system makes installation and servicing extremely user-friendly. The inverter is simply placed in the wall bracket and then secured. This means that it is not necessary to remove the entire inverter for servicing, just the power stage set. All the cabling remains in place.

AUTOMATIC HF TRANSFORMER SWITCHOVER

Fronius transformer inverters use a high-frequency (HF) transformer. The automatic transformer switchover facility produces three efficiency peaks. The result: a consistently high level of efficiency across the entire input voltage range. This gives higher yields. Other advantages of HF transformer technology are the compact, lightweight design and safety as a result of the electrical isolation.

INTEGRATED DATA COMMUNICATION

Fronius is the first inverter manufacturer to offer a data communication package with fully integrated datalogging, WLAN, Ethernet, energy management, web server and a range of interfaces. The inverter is connected to the internet by network cable or WLAN - without additional cabling - and grants you the perfect overview of how the PV system is operating. Connection to third-party components is provided by means of interfaces such as Modbus TCP SunSpec, Modbus RTU SunSpec or Fronius Solar API (JSON). The open interfaces can also be operated in parallel to the Fronius Solar.web.

SMART GRID READY

Fronius inverters are ready for the Smart Grid of tomorrow. The inverters are optimally equipped to meet the technical requirements of grids in the future. A series of smart functions, known as Advanced Grid Features, are built into the devices. They include a number of control functions for optimum feed-in of reactive power and effective power. These functions are designed to enable stable grid operation even when the PV system density is very high and to prevent unwanted interruptions to feed-in and associated yield losses if grid parameters exceed the thresholds. Fronius inverters therefore help to guarantee the yield of a PV system. Furthermore, where feed-in limits are imposed, Fronius inverters can provide dynamic feed-in control with self-consumption taken into account. Just connect the meter and set the feed-in limit!

ZERO FEED-IN

Today, an increasing number of grid operators in various countries are stipulating a PV power feed-in limit as a precondition before a system is connected to the grid. With dynamic power reduction, Fronius is offering a solution for optimum feed-in management. The Inverter supplies the household consumers with energy first and then reduces the system Output to the maximum energy feed-in permitted by the grid operator. With Fronius inverters, zero feed-in is also a possibility thanks to this function, meaning that no PV power is fed into the grid. The relevant requirements of the grid operator can be fulfilled by simply enabling a Setting on the inverter's web interface.

INPUT DATA

Number of MPP trackers	1,0
Max. input current (Idc max)	13,3 A
Max. short circuit current, module array	20,0 A
DC input voltage range (Udc min - Udc max)	120 - 420 V
Feed-in start voltage (Udc start)	140,0 V
Nominal input voltage (Udc,r)	260,0 V
MPP voltage range (Umpp min - Umpp max)	120 - 335 V
Usable MPP voltage range	120 - 335 V
Number of DC connections	3,0
Max. PV generator power (Pdc max)	3,0 kWpeak

OUTPUT DATA

AC nominal output (Pac,r)	1500,0 W
Max. output power (Pac max)	1500,0 VA
AC output current (Iac nom)	6,5 A
Grid connection (Uac,r)	1~ NPE 230 V
AC voltage range (Umin - Umax)	180 - 270 V
Frequency (fr)	50 / 60 Hz
Frequency range (fmin - fmax)	45 - 65 Hz
Total harmonic distortion	< 4 %
Power factor (cos φac,r)	0,85 - 1 ind./cap.

GENERAL DATA

Height	645,0 mm
Width	431,0 mm
Depth	204,0 mm
Weight	16,4 kg
Degree of protection	IP 65
Protection class	1,0
Overvoltage category (DC / AC) 1)	2 / 3
Night-time consumption	< 1 W
Inverter design	HF transformer
Cooling	Regulated air cooling
Installation	Indoors and outdoors
Ambient temperature range	-25°C - +50°C
Permitted humidity	0 - 100 %
Max. altitude 2)	2.000 m / 3.500 m
DC connection technology	3x DC+ and 3x DC- screw terminals 2.5 - 16 mm²
AC connection technology	3-pin AC screw terminals 2.5 - 16 mm²
Certificates and compliance with standards	ÖVE / ÖNORM E 8001-4-712, AS 4777-2, AS 4777-3, AS3100, DIN V VDE 0126-1-1/A1, VDE AR N 4105,<br /> IEC 62109-1-2, IEC 62116, IEC 61727, CER 06-190, CEI 0-21, EN 50438, G83, G59, NRS 097

EFFICIENCY

Max. efficiency (PV - grid)	95,9 %
European efficiency (ηEU)	94,5 %
η at 5% Pac,r 3)	84,5 / 86,0 / 86,0 %
η at 10% Pac,r 3)	87,5 / 89,7 / 89,6 %
η at 20% Pac,r 3)	91,3 / 93,3 / 93,1 %
η at 25% Pac,r 3)	92,4 / 94,1 / 93,9 %
η at 30% Pac,r 3)	93,0 / 94,6 / 94,3 %
η at 50% Pac,r 3)	93,9 / 95,5 / 95,2 %
η at 75% Pac,r 3)	94,2 / 95,6 / 95,4 %
η at 100% Pac,r 3)	94,0 / 95,9 / 95,6 %
MPP adaptation efficiency	> 99,9 %

PROTECTION DEVICES

DC insulation measurement	Warning / shutdown (depending on country setup) at R<sub>ISO</sub> < 600 kΩ
Overload behaviour	Operating point shift, power limitation
DC disconnector	Integrated
Reverse polarity protection	Yes

INTERFACES

WLAN / Ethernet LAN	Fronius Solar.web, Modbus TCP SunSpec, Fronius Solar API (JSON)
6 inputs and 4 digital inputs/outputs	Interface to ripple control receiver
USB (type A socket) 4)	Data logging, inverter update via USB flash drive
2x RS422 (RJ45 socket) 4)	Fronius Solar Net
Signalling output 4)	Energy management (floating relay output)
Datalogger and web server	Integrated
External input 4)	S0 meter connection / Evaluation of overvoltage protection
RS485	Modbus RTU SunSpec or meter connection