公开(公告)号：US11454653B2

公开(公告)日：2022-09-27

申请号：US17040840

申请日：2018-05-23

申请人： DEHN SE + CO KG

发明人： Peter Zahlmann ,  Josef Birkl ,  Thomas Böhm ,  Klaus Bühler ,  Johannes Maget ,  Arnd Ehrhardt ,  Eduard Shulzhenko

IPC分类号： G01R19/165 ,  G01R29/08

摘要： The invention relates to a device for detecting electrical currents on or in the vicinity of electrical conductors with at least one Reed switch as a magnetically responsive switch, which is arranged in the vicinity of the electrical conductor such that, when there is a significant current flow through the conductor, the magnetic field created triggers the switch and initiates an evaluation electronics connected to the switch. For the detection of surge current variables and the differentiation between long-term pulsed currents and short-term pulsed currents, a plurality of Reed switches are arranged at a predetermined distance from the electrical conductor, wherein the evaluation electronics determines the response and the switching times of the respective Reed switches, determines die surge current variable from the allocation of the determined values to the respective Reed switch and the pulse form from the switching time, wherein, for the purpose of adjusting the response behavior, at least one of the Reed switches comprises a shielding for influencing the magnetic field acting on the respective Reed switch.

公开(公告)号：US11454654B2

公开(公告)日：2022-09-27

申请号：US16968757

申请日：2019-01-31

申请人： DEHN SE + CO KG

发明人： Jens Ehrler ,  Peter Zahlmann ,  Ralph Brocke

IPC分类号： G01R19/25 ,  H02J13/00 ,  G01R21/133

摘要： The invention relates to a method for evaluating the state and the quality of low-voltage networks, in the branched system of which there is a plurality of connected loads, by determining network measurement data by means of power quality measuring and testing devices and transferring the network measurement data, by means of a standard interface, to a control system or in retrievable form to a server. According to the invention, the overvoltage protection devices, which are or can be used in the low-voltage system and have a self-diagnosis unit and an existing wireless or wired standard interface for data transfer, are able to determine network measurement data by means of integrated or adapted power quality measuring and testing devices.

公开(公告)号：US20210025927A1

公开(公告)日：2021-01-28

申请号：US17040840

申请日：2018-05-23

申请人： DEHN SE + CO KG

发明人： Peter Zahlmann ,  Josef Birkl ,  Thomas Böhm ,  Klaus Bühler ,  Johannes Maget ,  Arnd Ehrhardt ,  Eduard Shulzhenko

IPC分类号： G01R19/165 ,  G01R29/08

摘要： The invention relates to a device for detecting electrical currents on or in the vicinity of electrical conductors with at least one Reed switch as a magnetically responsive switch, which is arranged in the vicinity of the electrical conductor such that, when there is a significant current flow through the conductor, the magnetic field created triggers the switch and initiates an evaluation electronics connected to the switch. For the detection of surge current variables and the differentiation between long-term pulsed currents and short-term pulsed currents, a plurality of Reed switches are arranged at a predetermined distance from the electrical conductor, wherein the evaluation electronics determines the response and the switching times of the respective Reed switches, determines die surge current variable from the allocation of the determined values to the respective Reed switch and the pulse form from the switching time, wherein, for the purpose of adjusting the response behavior, at least one of the Reed switches comprises a shielding for influencing the magnetic field acting on the respective Reed switch.

公开(公告)号：US20220084772A1

公开(公告)日：2022-03-17

申请号：US17422185

申请日：2019-11-18

申请人： DEHN SE + CO KG

发明人： Arnd Ehrhardt ,  Ralph Brocke ,  Peter Zahlmann

IPC分类号： H01H85/055 ,  H01T1/02 ,  H01T4/14 ,  H01T1/14 ,  H01T2/02 ,  H01H85/165 ,  H01H85/02

摘要： The invention relates to an overvoltage protection arrangement comprising a horn spark gap located in a housing, with a chamber for arc quenching, wherein a trigger electrode is located in the ignition region of the horn spark gap, wherein a disconnecting element is provided that interrupts a connection between a trigger circuit and the trigger electrode, and thus disconnects the trigger electrode, wherein the disconnecting element is tripped or controlled by an evaluation unit that is subject to and reacts to the loading of a power follow-on current.

公开(公告)号：US20220013320A1

公开(公告)日：2022-01-13

申请号：US17485963

申请日：2021-09-27

申请人： DEHN SE + CO KG

发明人： Arnd Ehrhardt ,  Peter Zahlmann ,  Sven Wolfram

IPC分类号： H01H89/00 ,  H01H39/00 ,  H01H85/00 ,  H01H85/12 ,  H01H85/18

摘要： The invention relates to a triggered fuse for low-voltage applications for protecting devices that can be connected to a power supply system, in particular surge protection devices, consisting of at least one fusible conductor which is located between two contacts and is arranged in a housing, and also consisting of a trigger device for controlled disconnection of the fusible conductor in the event of malfunctions or overload states of the respective connected device, wherein an arc quenching medium is introduced into the housing. By way of example, an arc quenching medium-free region is formed in the housing such that the at least one fusible conductor is exposed, and a mechanical disconnection element can be introduced into the arc quenching medium-free region via an access point in the housing in order to mechanically destroy the at least one fusible conductor depending on the trigger device, and independently of its melting integral.

公开(公告)号：US11162984B2

公开(公告)日：2021-11-02

申请号：US16614430

申请日：2018-05-22

申请人： DEHN SE + CO KG

发明人： Peter Zahlmann ,  Josef Birkl ,  Thomas Böhm ,  Klaus Bühler ,  Johannes Maget ,  Arnd Ehrhardt ,  Eduard Shulzhenko

IPC分类号： G01R19/165 ,  G01R15/14 ,  G01R31/52

摘要： The invention relates to a method for detecting electrical currents on or near electrical conductors with at least one reed switch as a magnetically responsive switch, which is arranged near the electrical conductor such that when there is a significant current flow through the conductor, the magnetic field created triggers the switch and initiates evaluation electronics connected to the switch. For the detection of surge current variables and differentiation between long-term pulsed currents and short-term pulsed currents, a plurality of reed switches is arranged at pre-determined, different, increasing distances from the electrical switch, the evaluation electronics determining the response and the switching times of the respective reed switches. The surge current variables are determined from the association of the determined values with the respective reed switch and the pulse shape from the switching time.

公开(公告)号：US20200182915A1

公开(公告)日：2020-06-11

申请号：US16614430

申请日：2018-05-22

申请人： DEHN SE + CO KG

发明人： Peter Zahlmann ,  Josef Birkl ,  Thomas Böhm ,  Klaus Bühler ,  Johannes Maget ,  Arnd Ehrhardt ,  Eduard Shulzhenko

IPC分类号： G01R19/165 ,  G01R15/14

摘要： The invention relates to a method for detecting electrical currents on or near electrical conductors with at least one reed switch as a magnetically responsive switch, which is arranged near the electrical conductor such that when there is a significant current flow through the conductor, the magnetic field created triggers the switch and initiates evaluation electronics connected to the switch. For the detection of surge current variables and differentiation between long-term pulsed currents and short-term pulsed currents, a plurality of reed switches is arranged at pre-determined, different, increasing distances from the electrical switch, the evaluation electronics determining the response and the switching times of the respective reed switches. The surge current variables are determined from the association of the determined values with the respective reed switch and the pulse shape from the switching time.