Linak A/s

Bruno Christensen

Anders Lorenzen

Jens N Paulsen

Verner Smidt

Glenn Smith

Finn Jacobsen

John Landerholm

Kjeld Kristiansen

S&oslash;ren S&oslash;rensen

Jens Nansen Paulsen

A power operator for switchgear for use in mains power distribution systems such as public medium high voltage distribution systems, where the switchgear comprises a closed cabinet () with an operating shaft protruding therefrom that is rotatable between two positions and has a coupling part. The motor operator includes a housing () which is mountable on an external surface () of the switchgear cabinet (), and a rotatable connection shaft connected to an electromechanical linear actuator. The connection shaft has a first coupling part which connects with the coupling part of the switchgear in a longitudinal axial sliding and non-rotational interlocking manner. The housing () is a tube element which is tamper resistant, is relatively easy to seal against dust and moisture, and is inexpensive to manufacture.

Motor operator for switchgear for mains power distribution systems

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

A motor operator for switchgear for use in mains power distribution systems comprising a closed cabinet () with an operating shaft () protruding there from said operating shaft being rotatable at least between two positions and has a coupling part (). The motor operator () comprises a housing mountable on the external surface of the switchgear cabinet. A rotatable connection shaft () is connected to an electric motor via a drive mechanism, and has a first coupling part () to fit with the coupling part () of the switchgear in a non-rotational interlocking manner, and further has a second coupling part () extending from the housing to operate the contact of the switch manually and, for which purpose, the motor operator has a release mechanism releasing the connection shaft. The motor and the drive mechanism is designed as an electro-mechanical actuator with a rear mounting () for mounting the actuator in the housing of the motor operator and &#x3bc;. front mounting () on the activation element () for connection of the activation element to the rotatable connection shaft ().

A linear actuator includes a reversible electric motor which drives a spindle via a reduction gear with several stages and an activation element connected with it, and an overload clutch in connection with the first stage or one of the first stages in the reduction gear. This is advantageous in terms of structure and load and greater flexibility is achieved in the construction of the structure.

Growing community of inventors

Nordborg, Denmark

Bruno Christensen