Eaton Intelligent Power Limited

Moeller Gmbh

Eaton Industries Gmbh

Eaton Electrical IP Gmbh & Co. Kg

Eaton Intellectual Power Limited

Wolfgang Meid

Ingo Schaar

Gerd Schmitz

Wilhelm Melchert

Lutz Friedrichsen

Marcel Uedelhoven

Steffen Pluskotta

Bruno Fuentes

Robin Küppers

Stephan Stanke

A self-triggering, bidirectional control electronics component for an electronic switch (), for the detection and rapid shutdown of currents at a selected threshold value for both current flow directions, includes a threshold switch having a plurality of selectable shutdown threshold values for both current flow directions, the threshold switch coupled to a bidirectional current sensor system (), arranged in the electronic switch, based on sensing of sensors on an input side of the threshold switch; and a high-speed de-energizing circuit () on an output side of the threshold switch including a high non-load circuit voltage for rapid removal of current from a magnetic drive coil (), the high-speed de-energizing circuit being configured to rapidly remove the current from the magnetic drive coil when the bidirectional current sensor system senses a current greater than or equal to the selected threshold value among the plurality of selectable shutdown threshold values.

System, method, and apparatus for bi-directional DC short-circuit protection

A busbar adapter including a housing being adapted to be attached to a busbar, a printed circuit board, and at least one electric current sensor electrically connected with the printed circuit board, wherein the printed circuit board and the at least one electric current sensor are arranged inside the housing, wherein the housing comprises an upper housing part being adapted for the attachment of one or more devices to be connected through the busbar adapter to a busbar and a lower housing part being adapted for holding the printed circuit board and the at least one electric current sensor, and wherein the lower housing part comprises a first part being adapted for holding the printed circuit board and the at least one electric current sensor and a second part being adapted to be attached to the busbar.

Arrangement of a busbar adapter with one or more electro-mechanical switching devices

A control device for an electromagnetic drive of a switchgear includes a plurality of power supply units, each of which is configured to provide, in a specified input voltage range in each case, electrical power that is sufficient for operating the electromagnetic drive: The control device is configured to automatically control the use of the power supply units for operating the electromagnetic drive on the basis of an input voltage of the control device.

Control device for an electromagnetic drive of a switchgear

An electronic motor starter has a main switch configured as a semiconductor, forming a semiconductor contactor and having at least one semiconductor switch for switching a phase of a supply of a motor winding, a first connection of each semiconductor switch being connected to a corresponding first main current contact of the motor starter; an auxiliary switch configured as a semiconductor switch and connected between at least one pair of auxiliary contacts of the motor starter; a transducer for measuring currents connected between a second connection of each main semiconductor switch and a corresponding second main power contact of the motor starter; and a controller foe the main and auxiliary switches being powered via motor starter control contacts, for being fed transducer measurement signals, and being configured to control the main and/or auxiliary switch according to the supply via the control contacts and/or according to the transducer measurement signals.

Electronic motor starter

A method for controlling an electromagnetic drive of a switching device by means of a program, wherein a processor configured by the program executes the following steps: measuring a control voltage applied at an input of the switching device; activating the electromagnetic drive on the basis of the measured control voltage; and setting a rated voltage range on the basis of the measured control voltage.

Method and device for controlling an electromagnetic drive of a switching device

A contactor includes a coil through which current flows in an active state of the contactor; a controller configured to control the contactor; and a voltage converter, wherein, in the active state, the voltage converter is configured to converts an input voltage into a coil voltage which drops across the coil. The voltage converter can be electrically switched back into the active state from an inactive state using the controller. The contactor is configured to be switched into the active state from the inactive state by activating the voltage converter. The contactor is switched out of the active state into the inactive state by deactivating the voltage converter.

Reduced-component high-speed disconnection of an electronically controlled contactor

A control device for a switching device with separate start-up and holding coils includes control electronics to control the current supply to the start-up and holding coils and a direct voltage supply unit for the holding coil and the control electronics with the same reference potential for the holding coil and the control electronics.

Control device for a switching device with separate start-up and holding coils

An electronic overcurrent release for circuit breakers includes a first setting device connected to at least one control input of a microcontroller and configured to set a selected suitable nominal current value in a range between a minimum nominal current value and a maximum nominal current value. A second setting device is connected to at least one control input of the microcontroller and configured to set a selected suitable lag level, the second setting device having a test position. In the test position, the microcontroller has a set fixed test current value, which is less than the minimum nominal current value, and a set fixed test delay time, the microcontroller providing a release signal at a release signal output upon at least one of the phase currents exceeding a value of the set fixed test current value and a time of the set fixed test delay time.

Electronic overcurrent release for circuit breakers

A device for identifying a control mode for a voltage or current release of a voltage-release or current-release switching device includes at least one control unit having first and second control inputs. The control unit includes a signal detection device configured to detect a signal state at a first control input and a blocking device configured to disable the second control input when a control signal is detected at the first control input.

Device and method for identifying the type of control for a voltage-release or current-release switching device

A power supply for a voltage or current-releasing switching device having at least one coil for one of a voltage and current release includes a device which activates a switch means in a pulse-width modulated manner, the device configured for setting the current flowing in the coil, wherein inductance of the coil functions as an impedor of a clocked power supply which, via a rectifier diode and a storage capacitor, provides a first supply voltage that is predefinable via a comparison value. A voltage regulation device provides at least one second supply voltage. A measurement-resistor-free regulation device is provided for setting the current through the coil.

Apparatus and method for supplying power to a voltage- or current-releasing switching device

The invention relates to a method and a device for measuring a first voltage and a second voltage by means of a differential voltmeter. The differential voltmeter comprises a first inlet and a second inlet and a known voltage potential is applied to the second inlet. The voltage measurement comprises the following; a first voltage is applied to a first inlet of the differential voltmeter, a first differential voltage is measured, the first voltage from the measured first differential voltmeter and the known voltage potential is determined, the second voltage is applied to the second inlet of the differential voltmeter, a second differential voltage is measured, and the second voltage from the measured second differential voltage and the previously determined first voltage is determined.

Device and method for measuring a first voltage and a second voltage by means of a differential voltmeter

An electronic trip unit for a motor circuit breaker of an electric motor includes at least one detection unit configured to sense at least one current that is delivered to the electric motor. The unit further including a discriminator circuit, the discriminator circuit being in a first state when no measured current value exceeds a predefined trip threshold, and being in a second state when at least one measured current value exceeds the predefined trip threshold. The discriminator circuit includes an output for controlling the motor; a voltage-limiting component having a breakdown voltage; a resistor; and a switching unit configured to, in the first state, switch the control signal to the first level, and, in the second state, switch the control signal to the second level, the switching unit being configured to be switched by a voltage drop across the resistor.

Electronic tripping unit for a motor-circuit breaker of an electric motor

An electronic drive control apparatus for controlling a drive coil of a contactor includes a microcontroller configured for generating an inverted pulse width modulated signal, and at least one semiconductor switch. A pulse-shaping stage is connected downstream of the microcontroller for varying the pulse width modulated signal. The pulse-shaping stage includes a preselectable RC combination and an inverter connected downstream of the RC combination and having a Schmitt trigger input. A preselection of the RC combination is carried out via a plurality of outputs of the microcontroller to open collector transistor stages of discharge resistors of the RC combination. The pulse width of the driving signal of the semiconductor switch is determined from the inverted pulse width modulated signal and the preselected RC combination.

Electronic drive control apparatus

The invention relates to a method for effecting an electronic drive control of a drive coil of a protection system using an electronic device which comprises a microcontroller. The aim of the invention is to increase the serviceable life of a protection system. To this end, the invention uses a randomly selected and constantly changing delay time (t ) that occurs after a time (t , t ) at which the supply voltage is established on the electronic device.

Method for effecting an electronic drive control

An electronic drive control used for controlling a drive coil of a contactor during holding operation with a pulse-width modulation. The interval time for the pulse-width modulation is temporally changed or the pulse-width ratio is continuously changed. The invention may minimize the holding power in the case of high voltages without the occurrence of problems associated with EMC and without reducing the functional reliability.

Growing community of inventors

Muelheim-Kaerlich, Germany

Wolfgang Meid