公开(公告)号：US20190206650A1

公开(公告)日：2019-07-04

申请号：US16234709

申请日：2018-12-28

Applicant: Eaton Intelligent Power Limited

Inventor： Richard Gazik ,  Volker Heins

IPC: H01H83/20 ,  H01H71/08 ,  H01H71/12 ,  H01H71/24

Abstract: A single- or multi-pole power circuit-breaker, comprises main contacts, overload- and/or short-circuit current-actuated tripping means, an actuating mechanism for the main contacts, an arc chute and a pressure trip unit having a return element and an actuating element responsive to an overpressure in the arc chute. The tripping of the power circuit-breaker by a trip mechanism is executable both by the tripping means and the pressure trip unit. The pressure trip unit is arranged immediately adjacently to both the arc chute and a main busbar. A tripping lug mechanically engages with the trip mechanism such that an overpressure in the arc chute is transmitted virtually instantaneously to the pressure chamber. The actuating element is configured to switch over directly from a home position to a tripping position, against the force of the return element, in a case of overshoot of a pressure threshold value set by the return element.

公开(公告)号：US11831152B2

公开(公告)日：2023-11-28

申请号：US17340120

申请日：2021-06-07

Applicant: Eaton Intelligent Power Limited

Inventor： Volker Heins ,  Axel Britz ,  Amritendu Das ,  Yogesh Rajwade ,  Himadri Sengupta ,  Sandeep Yeole ,  Christoph Bausch

IPC: H02H7/26 ,  G01R31/52

CPC classification number: H02H7/262 ,  G01R31/52

Abstract: A short circuit test device includes: a first line test conductor couplable to a first load line conductor of an electric load network and a neutral test conductor couplable to a neutral conductor of the electric load network; a voltage source switchable to the first line test conductor and the neutral test conductor to output a predefinable test signal; a measurement unit for measuring an electric voltage and/or current, the measurement unit including measurement inputs which are connectable to the first line test conductor and the neutral test conductor, the measurement unit including an output for providing a measurement signal; and a control unit connected to the voltage source and the measurement unit, the control unit: causing the voltage source to apply a test voltage to the first line test conductor and the neutral test conductor and comparing the measurement signal provided by the measurement unit.

公开(公告)号：US20210391712A1

公开(公告)日：2021-12-16

申请号：US17340120

申请日：2021-06-07

Applicant: Eaton Intelligent Power Limited

Inventor： Volker Heins ,  Axel Britz ,  Amritendu Das ,  Yogesh Rajwade ,  Himadri Sengupta ,  Sandeep Yeole ,  Christoph Bausch

IPC: H02H7/26 ,  G01R31/52

Abstract: A short circuit test device includes: a first line test conductor couplable to a first load line conductor of an electric load network and a neutral test conductor couplable to a neutral conductor of the electric load network; a voltage source switchable to the first line test conductor and the neutral test conductor to output a predefinable test signal; a measurement unit for measuring an electric voltage and/or current, the measurement unit including measurement inputs which are connectable to the first line test conductor and the neutral test conductor, the measurement unit including an output for providing a measurement signal; and a control unit connected to the voltage source and the measurement unit, the control unit: causing the voltage source to apply a test voltage to the first line test conductor and the neutral test conductor and comparing the measurement signal provided by the measurement unit.

公开(公告)号：US10672580B2

公开(公告)日：2020-06-02

申请号：US16234709

申请日：2018-12-28

Applicant: Eaton Intelligent Power Limited

Inventor： Richard Gazik ,  Volker Heins

IPC: H01H9/34 ,  H01H77/02 ,  H01H71/08 ,  H01H71/12 ,  H01H71/10 ,  H01H71/24 ,  H01H83/20

Abstract: A single- or multi-pole power circuit-breaker, comprises main contacts, overload- and/or short-circuit current-actuated tripping means, an actuating mechanism for the main contacts, an arc chute and a pressure trip unit having a return element and an actuating element responsive to an overpressure in the arc chute. The tripping of the power circuit-breaker by a trip mechanism is executable both by the tripping means and the pressure trip unit. The pressure trip unit is arranged immediately adjacently to both the arc chute and a main busbar. A tripping lug mechanically engages with the trip mechanism such that an overpressure in the arc chute is transmitted virtually instantaneously to the pressure chamber. The actuating element is configured to switch over directly from a home position to a tripping position, against the force of the return element, in a case of overshoot of a pressure threshold value set by the return element.