Inverter

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Sirio Power Supply is a device that can both increase the functionality of an On Grid photovoltaic system with AROS Solar Technology inverters as well as create an Off-grid system. In fact, thanks to energy storage which is suitably sized based on the desired load characteristics and battery life, the system can store energy produced from a renewable source which can then be used later or when there is no radiation, in addition to making the system independent of the existence of electricity distribution grid. Hence this solution allows the self-consumption of the energy produced by the centre’s photovoltaic system to be managed in the best possible manner. The battery charging is done from the photovoltaic inverter or the electric grid/ generating set. The generous dimensions of the main internal components allows a higher output value to be obtained and, to guarantee the system performance, the presence of the inverter’s output transformer ensures the galvanic separation between the load and the batteries.

Battery Care System
The monitoring and management of the accumulators is transferred to the Battery Care System program which can safeguard the efficiency and reliability of the batteries with following services:
• Absence of ripple current with charged battery;
• Charging at two voltage levels to optimise the charging current and reduce the capacity recovery times;
• Compensation of the charging voltage depending on the temperature and protection against deep discharge, to reduce the phenomena of ageing and prolong battery life;
• Monitor the maximum charge time to reduce the consumption of the electrolyte and further prolong battery life;
• Battery tests to diagnose performance impairment or accumulator breakdowns in time;
• Management of the discharge cycles depending on the charge state of the battery. The device is compatible with the most common batteries used for photovoltaic applications characterised by a high number of charge and discharge cycles. To further optimise the performances, the Battery Care System also allows the manual setting of the voltage, current and charge duration parameters in case open-vented or NiCd batteries are used.

Sirio EVOs 12500 are equipped with two innovative MPPT devices which ensure that the inverter makes maximum use of photovoltaic generator power. Thanks to fast response times, the inverters make the maximum power generated by photovoltaic panels available at all times and in all in all weather conditions. Its multistring technology also allows the management of strings with different orientations and inclinations to best work with many models and types of panels, even in partial shade. This makes the inverters even more flexible and facilitates the installer in various configurations. 

Ease of installation and use
The wide input range, thanks to the use of NPC topology, combined with an IP65 degree of protection that allows outside placement of the inverter near the generator, simplify wiring on the DC side, reducing losses and limiting installation costs. The LCD display positioned on the front panel offers simple and intuitive viewing of all the essential information: power, energy produced and any faults, recalling other parameters such as mains voltage, photovoltaic module voltage and mains frequency.

Quality power
The Sirio EVO range implements innovative technologies and high quality components, sized with a wide margin compared to normal operation, able to compensate for routine machine maintenance without sacrificing operating flexibility. The innovative digital control of all stages of power ensures a low susceptibility network disconnections, preventing unwanted disconnections in the presence variations or micro-breaks. Sirio EVO inverters integrate protections against voltage surges in input and output and are equipped with control devices and redundancy protection, particularly on the output stage, a further guarantee of operational effectiveness and continuity.

MPPT Devices
Sirio EVOs 4000 are equipped with an innovative MPPT device which ensure that the inverter makes maximum use of photovoltaic generator power. Thanks to fast response times, the inverters make the maximum power generated by photovoltaic panels available at all times and in all in all weather conditions.

Economical & efficient, entry-level 3-1 phase UPS system protects connected mission-critical equipment against damage, downtime and data loss due to blackouts, brownouts, power surges and line noise. On-line double-conversion topology, VFI operation. Automatic and Manual Bypass for enhanced reliability Optional ECO mode for high-efficiency operation Internal batteries and expandable runtime options Paralleling for capacity up to 4 units 2 years limited warranty.

Economical & efficient, entry-level 3-1 phase UPS system protects connected mission-critical equipment against damage, downtime and data loss due to blackouts, brownouts, power surges and line noise. On-line double-conversion topology, VFI operation. Automatic and Manual Bypass for enhanced reliability Optional ECO mode for high-efficiency operation Internal batteries and expandable runtime options Paralleling for capacity up to 4 units 2 years limited warranty.