Digital inverter 1Ph or 3Ph INV

The AUNILEC INV series offers a range of one- and three-phase inverters with IGBT power conversion bridge. The system has been designed to continuously supply extra-low harmonics AC current to critical loads. The integrated static switch can automatically perform quick switching operations on the DC line, in case of black-out only, to substantially increase the global efficiency.

More details

Applications

Applications industry

Specifications

  • Clean and stable output AC with THD <2%.
  • Redundant fan system with temperature and air flow control.
  • By-pass static switch.
  • Line Interactive mode efficiency >98%; on-line mode: >93%.
  • Manual by-pass switch, allowing to perform maintenance operations without disconnecting the load.
  • Possibility to supply a non-linear load with minimum distortion thanks to the high-frequency IGBT technology.
  • Fuse protection on both the inverter and the emergency line, with burnt fuse identification and automatic insertion on the functional branch.
  • Wide range of input voltages.
  • Digital microprocessor control (DSP + PLD).
  • Full optical isolation on all the logic and interface cards.
  • Certified to operate in the harshest environment conditions.
  • Overload capacity: 150% for 1 minute, 110% for 2 hours.
  • Shortcircuit-proof architecture.
  • Modbus communication interface through RS232 or RS485 port.
  • Ethernet connectivity.

The AUNILEC INV series offers a range of one- and three-phase inverters with IGBT power conversion bridge. The system has been designed to continuously supply extra-low harmonics AC current to critical loads. The integrated static switch can automatically perform quick switching operations on the DC line, in case of black-out only, to substantially increase the global efficiency; it can also perform an ON-LINE conversion, in which the wave form is always generated by the inverter, thus ensuring a stable, undistorted waveform. In this case the load is switched to the emergency line only in case of inverter failure. The fast control system and the high-frequency PWM technology allow to connect the inverter to non-linear loads with a very low waveform distortion. The graphical display allows to show an easy to understand one-line diagram displaying the current status of the inverter and of the static switch, thus providing an accurate overview of the alarms and measurements.

Parallel and hot stand-by systems

To ensure the power supply continuity, AUNILEC adopts two solutions: HOT STAND-BY and N+1 redundancy. The hot stand-by mode uses two identical inverters and powers the load with one of them, while the other is active and synchronised with the mains, ready to intervene in no time should the first machine fail. The N+1 redundancy solution uses multiple inverters connected in parallel, always on and running, dividing the current load among them; the whole system is designed to ensure load powering even in case of inverter failure. Should the failure involve more than one inverter, the load is switched anyway to the emergency line without any power supply interruption.

Main optional components

  • Parallel configuration with active load distribution
  • Hot stand-by configuration
  • Special colours
  • Special protection degree
  • Output distribution panel

ModelInput voltageOutput voltagePower
INV M 005/11110Vdc (opt. 125Vdc)230Vac / 115Vac 1PH5kVA
INV M 010/11110Vdc (opt. 125Vdc)230Vac / 115Vac 1PH10kVA
INV M 015/11110Vdc (opt. 125Vdc)230Vac / 115Vac 1PH15kVA
INV M 020/11110Vdc (opt. 125Vdc)230Vac / 115Vac 1PH20kVA
INV M 030/11110Vdc (opt. 125Vdc)230Vac / 115Vac 1PH30kVA
INV M 040/11110Vdc (opt. 125Vdc)230Vac / 115Vac 1PH40kVA
INV M 050/11110Vdc (opt. 125Vdc)230Vac / 115Vac 1PH50kVA
INV T 010/11110Vdc (opt. 125Vdc)400Vac / 190Vac 3PH10kVA
INV T 015/11110Vdc (opt. 125Vdc)400Vac / 190Vac 3PH15kVA
INV T 020/11110Vdc (opt. 125Vdc)400Vac / 190Vac 3PH20kVA
INV T 030/11110Vdc (opt. 125Vdc)400Vac / 190Vac 3PH30kVA
INV T 040/11110Vdc (opt. 125Vdc)400Vac / 190Vac 3PH40kVA
INV T 050/11110Vdc (opt. 125Vdc)400Vac / 190Vac 3PH50kVA
INV M 005/22220Vdc230Vac / 115Vac 1PH5kVA
INV M 010/22220Vdc230Vac / 115Vac 1PH10kVA
INV M 015/22220Vdc230Vac / 115Vac 1PH15kVA
INV M 020/22220Vdc230Vac / 115Vac 1PH20kVA
INV M 030/22220Vdc230Vac / 115Vac 1PH30kVA
INV M 040/22220Vdc230Vac / 115Vac 1PH40kVA
INV M 050/22220Vdc230Vac / 115Vac 1PH50kVA
INV M 060/22220Vdc230Vac / 115Vac 1PH60kVA
INV M 080/22220Vdc230Vac / 115Vac 1PH80kVA
INV M 100/22220Vdc230Vac / 115Vac 1PH100kVA

INV T 010/22

220Vdc400Vac / 190Vac 3PH10kVA
INV T 015/22220Vdc400Vac / 190Vac 3PH15kVA
INV T 020/22220Vdc400Vac / 190Vac 3PH20kVA
INV T 030/22220Vdc400Vac / 190Vac 3PH30kVA
INV T 040/22220Vdc400Vac / 190Vac 3PH40kVA
INV T 050/22220Vdc400Vac / 190Vac 3PH50kVA
INV T 060/22220Vdc400Vac / 190Vac 3PH60kVA
INV T 080/22220Vdc400Vac / 190Vac 3PH80kVA
INV T 100/22220Vdc400Vac / 190Vac 3PH100kVA

• Other technical characteristics
Output distortion< 2% (VFI-SS-II class according to IEC/CEI EN 62040)
Dynamic stability-8%/+13% restore to +/-1% in 80ms
Switching<1ms
• Communications
Contacts in terminal boxVoltage-free contacts
Remote controlON/OFF switch, man. charge, probe temp.
CommunicationMODBUS protocol via RS485 DB9 serial port, TCP/IP
• Environment
CoolingForced
Temperature-5/+40°C, 93% humidity (without condensation)
Noise level55 to 60 dB (depending on sizes)
• Mechanical
Metal frame thickness2,5mm
Metal door thickness1,5mm
FrameGalvanised steel

Pretection degree with closed door

IP30
Protection degree with open doorIP20
ColorRAL 7035
Cable entryFrom below, from above, from the side