Disconnector
Türkçe: Ayırıcı
A safety switch that opens a de-energised circuit to create a visible air gap; it has no capability to interrupt current.
// EXPLANATION
A disconnector isolates the section to be maintained with certainty. Because opening it under load would cause a damaging arc, the breaker is always opened first. In versions with an earthing blade, the isolated section is also earthed for safe working.
// ALSO KNOWN AS
isolatordisconnectordisconnect switch
// RELATED TERMS
Circuit breakerA switching device that can make and break normal load current and short-circuit current, opening the circuit on command from a protection relay during a fault.
MV switchgear cellA compartment where medium-voltage breakers, disconnectors, measuring and protection equipment are grouped inside a metal enclosure.
Switching operationOpening and closing switchgear in a defined order to energise, de-energise or earth a section.
