Woehner Gmbh & Co. Kg Elektrotechnische Systeme

Future Systems Besitz Gmbh

Wohner Besitz Gmbh

Woehner Gmbh & Co Kg

Woehner Besitz Gmbh

Woehner Gmbh & Co.

Kg Elektrotechnische Systeme

Wöhner Gmbh & Co. Kg Elektrotechnische Systeme

Woehner Gmbh & Co Kg Electrotechnische Systeme

Philipp Steinberger

Joram Masel

Hubert Lenker

Peter Spiel

Alex Buettner

Jonas Schwarz

Pushkar Bhalerao

Daniel Steiner

Christopher Curth

Florian Höfner

Frank Leistner

Hans-Juergen Henning

Alex Büttner

Maximilian Rau

Alexander Scholz

Florian Brehm

A fuse holder provides a safe device for connecting fuses to a three-phase busbar device. Each phase includes a corresponding load conductor and line conductor mounted within a housing. A mechanical lock is provided for each phase that locks a knife of the fuse to one of the conductors for the phase. In a further aspect, the fuse knives are frictionally locked within the housing. In both the mechanical lock and frictional lock, a release mechanism is provided that can be activated by a screwdriver to release the fuse knives from the fuse holder. In another aspect, certain conductors are provided with heat dissipation wings that contact the housing to dissipate heat generated by current flowing through the conductor.

Fuse holder

A load protection and control apparatus () for protecting and controlling an electrical load connected to the load protection and control apparatus () comprising an overcurrent protection circuit (A) having a power switch () through which the electrical load receives an electrical load current (I) and having a sensor component () connected in series with the power switch () and adapted to generate directly a voltage drop (ΔU) corresponding to the current rise speed of the electrical load current (I) flowing from an input terminal () of the load protection and control apparatus () via the sensor component () and the power switch () to the output terminal () and having a driver circuit () adapted to detect an occurring overcurrent depending on the voltage drop (ΔU) generated by the sensor component () and/or depending on a voltage drop (ΔU) along the power switch () and adapted to switch off said power switch () upon detection of an overcurrent within a switch-off period of less than one millisecond; and/or comprising a power supply control circuit () having a sensor component () adapted to measure at the input terminal () a supply voltage (U) notified to a control unit () of the load protection and control apparatus () adapted to control an electrical power supplied to the electrical load, wherein each input terminal () is configured to establish an electrical connection with a busbar () of a busbar system or with a current carrying wire.

Apparatus for protecting and controlling an electrical load

An apparatus for switching and/or protection of a load connected to said apparatus, said apparatus () comprising: a power switch () through which the connected load receives an electrical current; a sensor component () connected in series with said power switch () and adapted to generate directly an electrical voltage drop corresponding to a current rise speed of the electrical current flowing via the sensor component () and via the power switch () to said load; and a driver circuit () adapted to detect an occurring overcurrent depending on a voltage drop generated by said sensor component () with or without a voltage drop along the power switch () and to switch off said power switch () upon detection of an overcurrent within a switch-off period to protect said power switch () and said load.

Apparatus for switching and protection of a load based on current rise speed

An apparatus () provided to connect at least one device () to a power distribution system (), said apparatus () comprising a human machine interface, HMI, () having elements to interact with the apparatus (), wherein the human machine interface elements () are adapted to display and/or to adjust setting values of operation parameters of the at least one connected device (), wherein access to one or more human machine interface elements is restricted by at least one access restriction mechanism of said apparatus () to enhance the operation security of the at least one device () connected via said apparatus () to said power distribution system () and/or to enhance the operation security of the apparatus () and/or of the power distribution system ().

Method for adjusting operation parameters of an electrical device

A touch protected busbar system (TP-BSYS) comprising at least one hybrid busbar () having a current-carrying rail profile () and a contact-receiving rail profile () providing contact openings () configured to receive protruding electrical contacts () of electrical devices (ED-A) to be connected to said touch protected busbar system (TP-BSYS), wherein the at least one hybrid busbar () is at least partially covered by electrical isolating touch protection elements (TPE) of said touch protected busbar system (TP-BSYS) and/or at least partially encapsulated by an electrical isolating layer.

Touch protected busbar system

A busbar board () for connection of devices () to a power busbar system, wherein the busbar board () comprises a front side touch protection cover plate () having feedthrough openings () for electrical connection contacts () of devices () to be connected to the busbar board (), wherein the touch protection cover plate () is adapted to cover power busbars () having contact openings () lying directly beneath the feed-through openings () of the touch protection cover plate () and comprising a touch protection base plate () connected to said touch protection cover plate (), wherein the touch protection base plate () covers the power busbars () enclosed by the busbar board () from behind, wherein a power feed-in of electrical power into the power busbars () enclosed by the busbar board () is provided by power feed-in plugs () being pluggable into socket () of the touch protection base plate () of the busbar board ().

Busbar board

A hybrid load protection apparatus () comprises a primary power supply path (A) between input terminal and output terminals () and a controllable mechanical switch (A) connected in series with a primary coil (A-) coupled inductively to a secondary coil (A-) providing a voltage, U, corresponding to a current rise speed of the electrical current flowing through the primary path (A). The voltage, U, is applied directly to a driver input (IN) of a first driver circuit (A) to trigger automatically a switch-off of the mechanical switch (A) within a first switch-off period (&#x394;t) to interrupt the primary power supply path (A). A secondary power supply path (B) is provided in parallel to the primary path (A) and having a further coil (B) connected in series with a semiconductor power switch (B). wherein a second driver circuit (B) associated with the secondary path (B) detects an increasing electrical current, I, flowing through the secondary path (B) caused by the interruption of the primary current path (A) on the basis of a voltage drop (&#x394;U) generated by the further coil (B) and a non-linear voltage drop (&#x394;U) along the semiconductor power switch (B) applied as a sum voltage (U) directly to a driver input (DESAT) at a high voltage side of the second analog driver circuit (B) to trigger automatically a switch-off of the semiconductor power switch (B) within a second switch-off period (&#x394;t) to interrupt the secondary power supply path (B).

Method and apparatus for protecting a load against an overcurrent

A busbar power supply apparatus comprising at a rear side of its housing an AC interface with electrical contacts configured to establish an electrical connection with AC busbars of a busbar system to receive AC mains voltages converted by an integrated AC/DC power conversion unit into a DC power supply voltage applied to at least one DC interface of said busbar power supply apparatus.

Busbar power supply apparatus

A hybrid busbar () for a busbar system, said hybrid busbar () comprising a current carrying rail profile () adapted to carry an electrical current with a predefined high current amplitude and at least one contact receiving rail profile () having a plurality of equally spaced contact openings () configured to receive protruding electrical contacts () of electrical devices (ED-A) to be connected to said busbar system, wherein the current carrying rail profile () and the contact receiving rail profile () are connected with each other to form said hybrid busbar () providing at least one bounding geometry with a rectangular cross section (CS), wherein the hybrid busbar () can be engaged from behind by hook-shaped mounting latches () of electrical devices (ED-B) to be connected to said busbar system.

Hybrid busbar for a busbar system

A configuration system for reconfiguring a switch cabinet includes a detection unit&#x2014;which detects functional units of an electric circuit, which are mounted within a switch cabinet, by way of characteristic features of the functional units, which have unambiguous identification features which are read out by the detection unit. A configuration unit contains a processor, which determines an electric circuit diagram of the electric circuit on the basis of the functional units of the electric circuit which are detected by way of the characteristic features and automatically replaces the detected functional units of the determined circuit diagram with associated replacement functional units which are stored in a database. An output unit is provided for outputting the determined replacement functional units.

Method and system for configuring a switch cabinet

Device for securing an object on a rail, having an elongated base body which may be placed transversely on the rail and which at one end comprises an integrated actuating element which, when actuated by a user, moves opposing latching hooks which are integrated in the actuating element and are suitable for engaging behind the rail, in opposite directions.

Device for securing an object on a rail

Power busbar system for connecting devices having at least one contact protection baseplate module for receiving elongated and electrically conductive power busbar modules each having a plurality of uniformly spaced contact openings of a contact opening array, wherein electrical connecting contacts of a device to be connected are configured to be inserted into the contact openings of the contact opening array of the electrically conductive power busbar modules for producing an electrical and mechanical connection.

Busbar system

Device for a busbar system, wherein a housing of the device comprises, on one housing side, electrical connection contacts which are configured in such a way that they are passable through feed-through openings of a contact protection baseplate module of the busbar system and are insertable into uniformly spaced contact openings located below the feed-through openings of busbar modules provided inside the baseplate module for producing a direct electrical and mechanical connection to the busbar modules.

Device for a busbar system

Device for operating an electric motor, comprising a detection unit for detecting zero-crossings and phase angles of applied phase-shifted sinusoidal voltage phases of a multi-phase power supply network; and a switching unit for connecting half-waves of the applied sinusoidal voltage phases through by means of semiconductor switches in accordance with switching patterns applied to the semiconductor switches, said patterns being synchronised with the detected phase angles and zero-crossings, to generate phase-shifted quasi-sinusoidal voltage phases which are applied directly to the electric motor.

Growing community of inventors

Coburg, Germany

Philipp Steinberger