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Datasheet INV

Datasheet INV
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Sinusoid wave PWM digital inverter 1Ph or 3Ph Main features: - - - - - - - The AUNILEC INV series offers a range of one- and threephase 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. 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. 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.

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Input voltage Output voltage

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OTHER TECHNICAL CHARACTERISTICS Output distortion <2% (VFI-SS-III class according to IEC/CEI EN 62040) Dynamic stability -8%/+13% restore to ±1 % in 80ms Contacts in terminal box Voltage-free contacts Remote controls ON/OFF switch, Man. charge, Probe temp. Communication Modbus protocol via RS485 DB9 serial port; TCP/IP Cooling Forced Temperature -5/+40°C, 93% humidity (without condensation) Noise level 50 to 60dB (depending on sizes) Metal frame thickness 2.5mm Metal door thickness 1.5mm Frame Galvanised steel Protection degree with closed door IP30 Protection degree with open door IP20...

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