[Martin Boettcher, Marcus Kampf] ,Berlin,,;,Berlin,, Disconnector contact drive devices for switchgear for power supply and distribution are described, in particular for air-insulated medium-voltage switchgear, having movable pole units. In where in a first movement sequence, the disconnector contacts are separated from fixed mating contacts of the switchgear. In a second movement sequence, the pole units are displaceable to achieve the isolating distance, and the disconnect contacts are moved to disconnect them by force components acting in the x/y directions. The disconnector contact drive devices are equipped with linear guide shafts. The pole units contain pole box frames which are linearly movable along the guide shafts from an ON position stop to an OFF position stop due to the forces acting on the toggles. The toggles each have four pivot bearings. The first pivot bearing is coupled to a linear actuator shaft, the second and third pivot bearings are bearings of the toggle and the fourth pivot bearing is connected to the pole box frame The linear actuator shafts are connected to the rotary actuator shafts by corner gears.

[KAMPF, Marcus, BÖTTCHER, Martin]

[BOTTCHER MARTIN, KAMPF MARCUS] DE An electromagnetic drive (10) for an electrical switch (20) such as a circuit breaker, has at least one movable armature (60) that can implement a lifting movement along a pushing direction (P) for moving a movable switching contact (21) of the switch (20). In a closed armature position (61), the armature closes a magnetic circuit (M1, M2) through first and second magnetically conductive yoke parts (100, 105). A permanent magnet (90, 95) produces a magnetic field for the magnetic circuit (M1, M2) and a holding force for holding the armature (60) in the closed position (61). A coil (80) is disposed to generate a magnetic flux in the same or opposite direction as the magnetic flux of the permanent magnet (90, 95). The electromagnetic drive (10) can be readjusted after installation, where the first and second yoke parts (100, 105) are moved relative to one another by the permanent magnet (90, 95) into the adjusted state, whereupon they are fixed in position.

[BOTTCHER MARTIN, HOHMANN STEFAN, KAMPF MARCUS] DE Disclosed is an insulating element for a medium-voltage switchgear comprising a terminal at the busbar end and an outgoing cable. A circuit-breaker is embedded in said insulating element. The insulating element supports a first contact point that is connected to the circuit-breaker and is used as a bearing point for a movable switching contact of a disconnector as well as an additional contact point for the movable switching contact. In order to embody an insulating element which makes it possible a create a favorable structure for producing medium-voltage switchgears in general for primary and secondary power supply systems while reducing expenses, the additional contact point is also configured as a bearing point for the movable switching contact, the movable switching contact is alternatively mounted on the additional contact point rather than on the first contact point, and the additional contact point is alternatively connected to the outgoing cable rather than to the terminal at the busbar end.

[Martin Böttcher, Marcus Kampf] DE Berlin An electromagnetic drive for an electrical switch such as a circuit breaker, has at least one movable armature that can implement a lifting movement along a pushing direction for moving a movable switching contact of the switch. In a closed armature position, the armature closes a magnetic circuit through first and second magnetically conductive yoke parts. A permanent magnet produces a magnetic field for the magnetic circuit and a holding force for holding the armature in the closed position. A coil is disposed to generate a magnetic flux in the same or opposite direction as the magnetic flux of the permanent magnet. The electromagnetic drive can be readjusted after installation, where the first and second yoke parts are moved relative to one another by the permanent magnet into the adjusted state, whereupon they are fixed in position.

[KAMPF, Marcus, PROTZE, Carsten] Wittelsbacherplatz 2, 80333 München, DE

[KAMPF MARCUS DR, KREUTZKÄMPER JÜRGEN, SCHMIDT FABIAN, SCHÖNHERR DIETER] SE

[BOETTCHER MARTIN, KAMPF MARCUS] DE

[MARCUS KAMPF, MARTIN BÖTTCHER] DE

[BÖTTCHER, Martin, KAMPF, Marcus] Wittelsbacherplatz 2 D-80333 München;Eosanderstrasse 10 D-10587 Berlin;Sponholzstrasse 12 D-12159 Berlin The invention relates to disconnector contact drive devices for switching installations which supply and distribute power, especially for air-insulated medium-voltage switching installations, having moveable pole units. In a first movement sequence, the disconnector contacts are separated from fixed counter contacts of the switching installations. In a second movement sequence, the pole units for obtaining the isolating distance can be displaced, whereby the disconnect contacts are separately moved by force components which act in x/y directions. The disconnector contact drive devices (TA) are equipped with linear guiding axles (FA). The pole units contain pole case frames (PG) which can be linearly displaced along the guiding axles (FA) between a position stop ON (SE...) and a position stop OFF (SU...) by means of an articulated lever (KH) on which force is exerted. The articulated lever (KH) comprises four turnable mountings (DL1, DL2, DL3, DL4), whereby the first turnable mounting (DL1) is coupled to a pushing drive axle (SA), the second and third turnable mountings (DL2, DL3) represent mountings of the articulated lever (KH), and the fourth mounting (DL4) is connected to the pole case frame (PG). The pushing drive axles (SA) are connected to the turnable drive axles (DA) via the reversing mechanism (UG).