The energy sector, particulary electrical energy, is undergoing a profound worldwide transformation.

The rapid advance of modern society and its increasingly high demand for energy, means there are more distribution lines and installations requiring advanced supervision systems to keep them operating in a safe and continuous manner. 

Aware of this, Fanox, following years of research and development, offers a complete family of equipment that provides an efficient and economical solution.

The SI system consists of a series of digital and communicated protection and control relays for electrical distribution installations and networks intended for industrial systems and medium voltage electrical substations. 

The family consists of equipment specifically designed to protect and control, amongst others, the following items:

• The medium voltage lines wich distribute electrical energy to installations.

• The transformers which adjust the levels of medium to low voltage.

• The machines and motors, consuming electrical energy, of each industrial installation.

• The generators, in the multiple cases where the plant has cogeneration.

All the units are digital and communicated, providing them with a number of adventages:

• Self-diagnostic and event recording functions into a non volatile memory.

• One or two communication ports using the ModBus-RTU protocol.

• A communication port is fitted with GSM modem (AT-commands), wich can send SMS messages to the mobile phones of maintenance staff. 

• They have an alarm recorder which can be configured by the user, to be used in built-in systems.

• Two oscillographic recorders are fitted in the non-volatile memory, capable of recording up to 8 analogue and 32 digital waves, sampled 32 times/cycle during 33 cycles.

• A powerful programmable logic, to configure the outputs, the commands and the equipment alarms.

From an operating safety viewpoint, it is worth mentioning the internal backup batteries which provide the energy required to maintain the unit in operation, plus the capacity to act on cut off items (trip coil), should the auxiliary supply fail.

They are fitted with an MMI consisting of an LCD display and keys. Via this, system measurements, instantaneous states, counters, status of the inputs and outputs, date and time, event recorder, etc. can be consulted.

Another way of connecting with the unit is to use its SIcom communications programme, wich allows the information to be adjusted, configured and visualised.