Breakers are situated at the key points of electrical energy transmission and distribution systems. Their reliability has a decisive influence on the availability, safety and economic efficiency of electrical supply networks.
Initially, the reliability of newly installed breakers depends on their construction, the manufacturing quality and the type and scope of final factory inspections and tests. However, once installed on site, only regular tests can guarantee perfect functioning throughout the operational life of a breaker.
Automatic test systems provide precise information as to the state of the switching chamber and drive unit throughout the entire operational life of a breaker without requiring these to be opened. The sheer number of parameters to be calculated, the wide variety of different breakers in use and the harsh environmental conditions encountered during on-site tests make extremely high demands on the test technology involved.
