A MOTOR OPERATOR FOR SWITCHGEAR FOR MAINS POWER DISTRIBUTION SYSTEMS

摘要

A power operator for switchgear (1) for mains power distribution systems, where the switchgear comprises a closed cabinet (5) with an operating shaft protruding there from. The operating shaft is rotable at least between two positions and has a coupling part (2, 3). The operator comprises a housing (10), which is mountable on the external surface (4) of the switchgear housing, and a rotatable connection shaft (14) connected to an electric drive mechanism (11). It has a first coupling part to fit with the coupling part of the operating shaft in a longitudinal axial sliding and non-rotational interlocking manner. The coupling part of the connection shaft (14) is a separate interchangeable part (24, 24a) of the connection shaft attached thereto by non-rotational interlocking means. Further, it has an activation knob (16) extending from the housing (10) to operate the switch manually. With an interchangeable coupling part (24, 24a) the motor operator could easily be adapted to various switchgear simply by choosing a coupling part (24, 24a) fitting the coupling (2, 2a, 3) on the switchgear.