Solar energy

Safeguarding the environment for everyone’s peace of mind

HP 80

Helios Power inverters with transformers allow direct connection to the low voltage distribution grid guaranteeing the galvanic separation with respect to the DC current plant. The ample rating of the transformer and the other inverter components provides very high conversion efficiency and ensures it is one of the most efficient devices of its kind.

Maximum energy and safety
The Maximum Power Point (MPPT) research algorithm implemented in the control system of Sirio inverters allows full use of the photovoltaic generator in any radiation and temperature conditions, making the plant work at constant maximum efficiency. In the absence of solar radiation the converter goes on standby and resumes normal operation when there is radiation again. This feature reduces autoconsumption to a minimum and maximizes energy efficiency. All these design features, careful choice of components and guaranteed quality of production according to standard ISO9001, make the threephase inverters with transformers of the Helios Power series extremely efficient and reliable guaranteeing maximum energy production.

Advanced communications
The Helios Power series inverters have an intuitive man-machine interface, made up of an integrated display and keyboard with which it is possible to control the photovoltaic system’s main parameters and to interact with it to control its operation. The display and keyboard facilitate diagnosis and solutions to any operating problems at local level while interaction with the remote inverter is possible through the most common of media (local serial link, Local Area Network, GSM, etc.) by means of RS232/RS485 communication ports, to know the plant’s status and to assess statistics about its operation. Communication interfaces, together with the relative software, are common to the family of transformerless inverters, where more detailed information can be obtained.

Easy installation and maintenance
The footprint of these devices has been considerably reduced and there is no need to leave spaces at the side or back of the equipment since the electronics and power components are fully accessible from the front. Full automatic operation ensures ease of use and facilitates installation and startup, thus avoiding errors during installation and configuration which could lead to failures or reduced plant productivity.

Conformance
Helios Power inverters with low frequency isolation transformers conform fully with European safety standards LVD and EMC and with Italian and international regulations regarding parallel connection to the public mains.

Personalized solutions
Riello UPS is able to supply Helios Power series inverters specific to client’s needs on request. To give an example, in order to increase overall plant efficiency there are models without an integrated transformer for use with plants connected to a medium voltage distribution network. It is also possible to manufacture cabinets with IP protection levels greater than the standard level for specific installation environments.

Electromagnetic compatibility EMC
Directives: 2004/108/EC
Standards: EN61000

Safety
Directives: 2006/95/EC
Standards: IEC 62103 ; EN50178

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