 infra |
infra |
NEW
infra
infra, solar autarky hub
Infra is our new concept for our proposed complete energy infrastructure for your facility. The infra solar autarky hub secures the energy supply of a building, the integrated next3 rack centralizes the management of the solar generation, the storage, the grid and the loads. You can build your own infra concept to match your specific project requirements.
The combination of the next and rack worlds opens a wide new range of reliable and independent energy possibilities. Dive into the infra concept and explore all the options that we have assembled for you.
solar autarky hub
The standard 3-phase 16kW system including 24kW of solar and 30kWh of storage can secure the energy of a small facility with an average yearly 85% autonomy. The device topology embraces a full backup capability to run offgrid if required. Without any additional accessory your system will automatically switch to offgrid mode and continue powering the loads and the users will not even notice.
next + rack, the ultimate duo
Combine up to 3 next3 in parallel if more power is needed, integrate your rack batteries and your electrical bypass for a plug-and-play solution. Do you have special project requirements, check the outdoor cabinet and take maximum advantage of working with the rack flexibility.
next3 rack, the heart of the system
The next3 is the central hub distributing smartly the energy from the sources to the loads, maximizing your autarky rate and without any required external meter or accessory.
manufactured, assembled and tested
At our factory in Sion we manufacture the next3 rack. We assemble the cabinet and install the next3 rack, batteries and accessories according to the selected items. Studer technicians cable all the elements and the full infra cabinet is tested before shipment. Shipping can be organized with the assembled infra cabinet as plug and play or in separate pieces for facilitating transportation and ready to be installed and operated.
Options & accessories
battery rack
1 to 6 battery 5kWh unit (min 3 units recommended)
nx bypass rack
optional rack 80A bypass
infra outdoor
for special conditions
infra battery
1 to 10 additional 5kWh battery units
Technical data
infra nx3
System
| Continuous power @25°C | 15000 VA |
| Power 30 min. @25°C | 16000 VA |
| Power 5 sec. 25°C with solar / inverter / 1-phase | 30000 / 24000 / 10000 VA |
| Nominal battery voltage (Input range) | 48 Vdc (36 – 68 Vdc) |
| Maximum charging current / power* | 300 Adc / 15000 W |
Cos φ 0.1-1 | Harmonic distortion < 1 % | Charge characteristic* 6 steps: bulk, absorption, floating, equalization, reduced floating, periodic absorption | Temperature compensation* with nx tempsensor (included)
AC source (Grid or genset)
| Max rated current | 3 x 80 Aac |
| Operating voltage range, line to neutral | 176 – 288 Vac |
| Nominal voltage, line to neutral / line to line* | 220 – 230 – 240 / 380 – 400 – 415 Vac |
| Nominal frequency* | 50 / 60 Hz |
Overvoltage category (OVC) III | Grid code compliance* EU Commission Regulation 2016/631 (NC RfG), EN 50549-1:2019, VDE-AR-N 4105:2018, IEC 62116, IEC 61727
Solar PV
| Number of MPPT inputs | 2 |
| Maximum PV short circuit current per PV input | 27 Adc |
| Maximum PV open voltage (Voc) | 900 Vdc |
| Start up voltage / Shut off voltage | 200 / 100 Vdc |
| Maximum solar power produced (electronic limitation) | 2 x 8000 W |
| Maximum solar power recommended (@STC) | 2 x 12000 W |
Maximum efficiency solar to grid / EU / CEC 97 / 92 / 93% | MPP efficiency static / dynamic > 99 / 99% | Maximum efficiency solar to battery 95 %
AC flex (*Controlled 2nd AC load or Genset)
| Max rated current | 3 x 80 Aac |
Battery (from 1 to 6 modules, min 3 modules recommended)
| Manufacturer, model | Weco, 5k3-xp rack LV |
| Module capacity | 5.3 kWh |
| Single module nominal voltage | 51.2 Vdc |
| Usable capacity | 100 Ah |
| Dimension | 550x430x155 mm |
| Weight | 57.3 kg |
Battery capacity 3 units 15.9 kWh, 4 units 21.2 kWh, 5 units 26.5 kWh, 6 units 31.8 kWh
General data
| Product dimensions h/w/l and weight | 1990±30 / 605 / 1050 mm 816 kg (with 6 battery units) |
| Selfconsumption OFF / Standby / ON | 6 / 7 / 41 W (+5 W with nx interface) |
| Multifunction I/O contacts | 2 x Input, 2 x Output, rating 16 A each |
| Interfaces | nx interface, datalogger USB 1-min resolution, 1 x RS485i, 1 x CANi, 1 x LAN, 4 x USB, nx wifidongle, studer portal + easy monitoring App |
| Safety+EMC conformity (CE marking) | EU Low Voltage Directive (LVD) 2014/35/EU, EU Electromagnetic Compliance (EMC) 2014/30/EU |
| Ingress Protection | IP54 |
| Temperature control | air cooling |
Operating ambient temperature range -20 to 55°C | Relative humidity operation range 0 to 100 % | Mounting location Indoor, unconditioned
Data may change without any notice. | *Adjustable values