ACTUATOR FOR A MEDIUM VOLTAGE CIRCUIT BREAKER

ACTUATOR FOR A MEDIUM VOLTAGE CIRCUIT BREAKER

Actuator for a medium voltage circuit breaker or recloser with at least one movable contact with a contact stem, driven by a contact electromagnetic drive or a motor drive, and a spring, wherein the spring is positioned in the kinematic chain between the drive and the movable contact or contact stem...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: Reuber, Christian
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Beschreibung
Zusammenfassung:Actuator for a medium voltage circuit breaker or recloser with at least one movable contact with a contact stem, driven by a contact electromagnetic drive or a motor drive, and a spring, wherein the spring is positioned in the kinematic chain between the drive and the movable contact or contact stem, and method for operating such actuator, according to the preamble of claim 1 and 9. In order to get a qualified actual status signal about functional availability of the drive, the invention is, that the arrangement of movable contact (3) and movable contact drive (10) is furthermore provided with means for the detection of a micromotion activation and with means for feedback control of a micromotion activation, in order to register the actual movability and availability of the drive of the movable contact, without changing the actual switch position itself.