Protection against electric arcs

The electric arc is a phenomenon that generates internal overpressures and results in local overheating which may cause high mechanical and thermal stresses in the equipment.

Such a phenomenon is an anomalous and rare event, but it’s necessary to take safety measures to prevent it. The arc guard system is, therefore, a natural part of a modern switchgear design. The operating logic of an arc detector is based on the detection of the light radiation associated with the occurrence of an electric arc inside the switchboard. The arcing control system detects the event and sends a tripping signal to the circuit-breaker. The reaction time of detection is about 1 ms.

• Reduction of the trip times in the event of an electric arc

• Quick detection of electric arcs inside switchgear assemblies

•  Fast reaction against such destructive and harmful events

Users' benefits

Safety