Transient Overvoltage Protection (TVSS, SPD)

Renewable Energy

The surge protection relays protect installations and eliminate the effects of power surges. They offer the highest level of security in low voltage lines, continuous processes, domestic and tertiary facilities, etc.

The most visible and destructive power surges are often caused by atmospheric discharges (lightning strikes). However, this is not the most common source of such disturbances, as in most cases, the main sources of surges are within the facility installation itself, amongst others for the following reasons:

  • Performance of circuit breakers and fuses.
  • Connection and disconnection of inductive loads.
  • Switching of motorsand machines.
  • Electrostatic discharge.
  • Capacitor’s power factor correction.
  • Energy tansfers in generator sets.

SPD – Electrical Equipments Protection for Standard Applications

  • Compact equipments for all distribution systems
  • High discharge capacity by “Spark Gap” technology
  • Visual indication of a fault in the equipment
  • With thermal separation device
  • Remote signalling of the protection status

SST – Surge Arresters for Crittical Applications Protection

  • MOV technology, high energy discharge capacity
  • Thermaly protected
  • Visual fault indication
  • Remote signalling
  • Low voltage protection level
  • Metalic box
  • Surge event counter
  • Failure pre-test

VP C40 – Compact Equipment for Photovoltaic Installations

  • Compact equipment for photovoltaic installations.
  • High discharge capacity via zinc oxide varistors and gas dischargers.
  • With thermal separation device.
  • Visual indication of a fault in the equipment.
  • Remote signalling of protection status.
  • Plug-in protection modules which facilitate maintenance.

VP C30 – Compact Equipment for Wind Power Installations

  • Compact equipment for wind power installations.
  • High discharge capacity via zinc oxide varistors and gas dischargers.
  • With thermal separation device.
  • Visual indication of a fault in the equipment.
  • Remote signalling of protection status.
  • Plug-in protection modules which facilitate maintenance.
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