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公开(公告)号：US20220224110A1
公开(公告)日：2022-07-14
申请号：US17607195
申请日：2020-05-04
申请人： DEHN SE + CO KG
发明人： Michael Stehle , Frank Schork
摘要： An asymmetric surge protection device for a DC circuit (16) has a negative side (32) which can be connected to a current output (28) of the DC circuit (16), a positive side (30) which can be connected to a current input (26) of the DC circuit (16), and an asymmetric neutral section (34). The asymmetric neutral section (34) has a positive protection level (Vp) for a positive voltage (V) between the positive side (30) and the negative side (32), and a negative protection level (Vn) for a negative voltage (V) between the positive side (30) and the negative side (32), the positive protection level (Vp) being different from the negative protection level (Vn).
Furthermore, a DC circuit arrangement (14) and a DC network (10) are shown.-
公开(公告)号：US20220208498A1
公开(公告)日：2022-06-30
申请号：US17606930
申请日：2020-05-07
申请人： DEHN SE + CO KG
发明人： Arnd Ehrhardt , Klaus Bühler
摘要： The invention relates to a lightning protection spark gap assembly. The lightning protection spark gap assembly comprises: a lighting protection spark gap (1) having a first main connection (1a) and a second main connection (1b), wherein a first voltage line (S1) of a supply network can be connected to the first main connection (1a) and a second voltage line of the supply network can be connected to the second main connection (1b); a safety fuse device (8) which can be triggered and which can be connected between the first or second voltage line (S1, S2) and the corresponding main connection (1, 1b) of the lightning protection spark gap (1), wherein at least one current path (TS) leading via the lighting protection spark gap (1) can be formed between the first voltage line (S1) and the second voltage line (S2) during operation; an indicator device (I) for detecting a current flow in the current path (TS) or a corresponding portion of the current flow in the current path (TS) and for mechanically or electrically delayed triggering of the safety fuse device (8) if the detected current flow in the current path (TS) or the corresponding portion of the current flow in the current path (TS) fulfills a predefined criterion.
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公开(公告)号：USD952574S1
公开(公告)日：2022-05-24
申请号：US29745320
申请日：2020-08-05
申请人： DEHN SE + Co KG
设计人： Michael Hess , Florian Gäck , Julius Maria Schrafl
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公开(公告)号：USD951883S1
公开(公告)日：2022-05-17
申请号：US29745356
申请日：2020-08-05
申请人： DEHN SE + Co KG
设计人： Michael Hess , Florian Gäck , Julius Maria Schrafl
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公开(公告)号：USD951881S1
公开(公告)日：2022-05-17
申请号：US29745315
申请日：2020-08-05
申请人： DEHN SE + Co KG
设计人： Michael Hess , Florian Gäck , Julius Maria Schrafl
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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.
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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
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.
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公开(公告)号：US20210351572A1
公开(公告)日：2021-11-11
申请号：US17278323
申请日：2019-09-11
申请人： DEHN SE + CO KG
发明人： Uwe Strangfeld , Sebastian Haas
摘要： The invention relates to an arrangement for firing spark gaps with a trigger electrode which is located at or in one of the main electrodes and which is insulated from this main electrode, wherein the trigger electrode can be electrically connected to a further main electrode via at least one voltage-switching or voltage-monitoring element and there is an air gap between the trigger electrode and the further main electrode, wherein the trigger electrode forms a sandwich structure with an insulating layer and a layer made of a material with lower conductivity than the material of one of the main electrodes. Moreover, the insulating layer is designed as a thin foil or lacquer layer and the layer made of the material of lower conductivity is in contact with one of the main electrodes or rests on it. According to the invention, for discharging energetically weak overvoltage events without response of the spark gap formed between the main electrodes, the insulating layer of the sandwich structure is interrupted outside the firing area and/or an electrical component which influences the response behavior is connected between the trigger electrode and the associated main electrode.
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公开(公告)号：US11165236B2
公开(公告)日：2021-11-02
申请号：US16647989
申请日：2017-12-12
申请人： DEHN SE + CO KG
发明人： Ralph Brocke , Ottmar Beierl
IPC分类号： H02G13/00
摘要： The invention relates to a method for designing a lightning protection system for the exterior lightning protection of buildings and systems and to an insulated lightning arrester device related thereto. The lightning arrester of the lightning protection system is at least partly designed as an insulated electric conductor with a conductive layer or casing on the insulation, and conductive structures can be found in the respective building or the respective system, wherein the structures are potentially exposed to inductions which occur in the event of a lightning current to be arrested, and correspondingly the conductive layer on the insulated conductor together with the respective conductive structure forms a secondary loop.
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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.
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