公开(公告)号：US20240230745A9

公开(公告)日：2024-07-11

申请号：US18383303

申请日：2023-10-24

申请人： Bender GmbH & Co. KG

发明人： Zhongkui Huang ,  Matthias Gruen

IPC分类号： G01R31/12

CPC分类号： G01R31/1272

摘要： Methods are provided for accelerating the insulation resistance measuring for determining an insulation resistance according to a pulse measuring method in an ungrounded power supply system. After indicating a target charging state of the network capacities available, a target point in time is calculated at which the network capacities have reached the target charging state. A first wait time is calculated from the current point in time as the difference between the target charging state and the current point. Alternatively, a target charging rate reflects a sufficiently stationary charging state of the capacitors, valid for measuring the insulation resistance. The target charging rate corresponds to the derivative of the first order of the target charging voltage and thus linked to the target point in time. Using the derivatives of the first order, a time difference is calculated as a second wait time.

公开(公告)号：US12000881B2

公开(公告)日：2024-06-04

申请号：US18089735

申请日：2022-12-28

申请人： Bender GmbH & Co. KG

发明人： Dieter Hackl

IPC分类号： G01R31/12 ,  G01R1/02 ,  G06F11/30

CPC分类号： G01R31/1272 ,  G01R1/025 ,  G06F11/3013 ,  G06F11/3093

摘要： A method for automatically creating installation-specific measuring profiles for an insulation monitoring system, includes: assisting in a computer-controlled manner by means of an assist system via guided instructions for acquiring installation data; and executing the instructions by means of one more sensor devices. The method further includes pre-selecting, assisting, recording, evaluating, detecting, and optimizing steps.

公开(公告)号：US20240151748A1

公开(公告)日：2024-05-09

申请号：US18502217

申请日：2023-11-06

申请人： Bender GmbH & Co. KG

发明人： Pascal BECKER

IPC分类号： G01R15/18 ,  G01R19/25 ,  G01R35/00

CPC分类号： G01R15/183 ,  G01R19/25 ,  G01R35/005

摘要： An electric circuit arrangement and to a measuring method for the galvanically separate, AC/DC-sensitive residual-current measurement, the measuring method including registering a residual current (Id) by means of a measuring current transformer having a toroid and precisely one secondary winding; supplying power to the secondary winding and generating a time-modulated, binary measuring signal (V) having a corresponding dwell time (Th, T1) in a first state (S1) and a second state (S2) by means of a driver circuit having an oscillation circuit; evaluating the dwell times (Th, T1) by means of a computing unit and outputting a residual-current measured value (Im, I'm) by a data interface, wherein the driver circuit having the oscillation circuit forms an integral structural unit in the form of a driver module, which is supplied with a shared, unipolar operating voltage (Ub) by a power-supply device together with the computing unit.

公开(公告)号：US20240133939A1

公开(公告)日：2024-04-25

申请号：US18383303

申请日：2023-10-23

申请人： Bender GmbH & Co. KG

发明人： Zhongkui Huang ,  Matthias Gruen

IPC分类号： G01R31/12

CPC分类号： G01R31/1272

摘要： Methods are provided for accelerating the insulation resistance measuring for determining an insulation resistance according to a pulse measuring method in an ungrounded power supply system. After indicating a target charging state of the network capacities available, a target point in time is calculated at which the network capacities have reached the target charging state. A first wait time is calculated from the current point in time as the difference between the target charging state and the current point. Alternatively, a target charging rate reflects a sufficiently stationary charging state of the capacitors, valid for measuring the insulation resistance. The target charging rate corresponds to the derivative of the first order of the target charging voltage and thus linked to the target point in time. Using the derivatives of the first order, a time difference is calculated as a second wait time.

公开(公告)号：US20240012042A1

公开(公告)日：2024-01-11

申请号：US18220009

申请日：2023-07-10

申请人： Bender GmbH & Co. KG

发明人： Pascal Becker

IPC分类号： G01R31/08 ,  G01R27/08 ,  G01R27/26 ,  G01R23/00 ,  G01R15/18

CPC分类号： G01R31/086 ,  G01R27/08 ,  G01R27/2605 ,  G01R23/00 ,  G01R15/18

摘要： A method and an electric circuit arrangement for determining a branch insulation resistance and a branch leakage capacitance of a line branch to be monitored in a branched, ungrounded power supply system having active conductors and a measuring voltage fed centrally by a controllable measuring voltage source and a residual current caused by the measuring voltage being registered using a current sensor in the line branch to be monitored. The centrally supplied measuring voltage is formed over a generator period having a characteristic signal form defined via the frequency composition. By this (frequency) modulation of the measuring voltage, information is transmitted from the central feed location of the measuring voltage to the current sensor disposed in the line branch to be monitored. Based on this information, the current sensor can establish with which resistance value the coupling circuit feeds the measuring voltage in the corresponding generator period, without another communication channel being required.

公开(公告)号：US11818859B2

公开(公告)日：2023-11-14

申请号：US17516816

申请日：2021-11-02

申请人： Bender GmbH & Co. KG

发明人： Matthias Becker ,  Oliver Schaefer ,  Burkhard Macht ,  Michael Prinz-Weinel

IPC分类号： H05K7/14 ,  H02B1/052 ,  H02B1/04 ,  H02B1/20

CPC分类号： H05K7/1478 ,  H02B1/04 ,  H02B1/052 ,  H02B1/205 ,  H05K7/1474

摘要： A carrier-rail bus assembly including a number of n mechanically contiguous bus-circuit-plate sections electrically connected via bus-circuit paths and installed in a carrier rail, an electronic control unit being configured such that it detects whether an apparatus is inserted in an installation position i, respective installation position i being allotted a bus address, which is assigned to the apparatus inserted on the carrier rail on the respective bus-circuit-plate section in respective installation position i. A related method for assigning a bus address is also disclosed.

公开(公告)号：US11789060B2

公开(公告)日：2023-10-17

申请号：US17338770

申请日：2021-06-04

申请人： Bender GmbH & Co. KG

发明人： Pascal Becker ,  Karl Schepp

IPC分类号： G01R31/08 ,  H01R13/652 ,  H01R13/66 ,  H01R13/717

CPC分类号： G01R31/086 ,  H01R13/652 ,  H01R13/6683 ,  H01R13/7175

摘要： A grounded socket and a method for insulation fault location in an ungrounded power supply system including insulation monitoring by a standard insulation monitoring device superimposing a measuring voltage on the ungrounded power supply system for determining an insulation resistance of the ungrounded power supply system. The grounded socket includes a housing having electrical contacts, a signaling device for signaling an insulation state, and a current measuring device for detecting and evaluating a differential current, the current measuring device having a measuring current transformer and evaluating electronics, and the current measuring device being configured for high-resolution detection and evaluation of a measuring current driven by the measuring voltage as a differential measuring current.

公开(公告)号：US20230176102A1

公开(公告)日：2023-06-08

申请号：US18076647

申请日：2022-12-07

申请人： Bender GmbH & Co. KG

发明人： Dennis Haub ,  Wolfgang Hofheinz

IPC分类号： G01R27/18 ,  G01R31/28

CPC分类号： G01R27/18 ,  G01R31/2827

摘要： A method and a device for impedance monitoring for a single-phase or multiphase, ungrounded power supply system. The method comprising the following steps: measuring a complex impedance against ground simultaneously for each active conductor using a measuring device; calculating a complex touch current for each active conductor; testing in the computing unit whether the corresponding complex touch current exceeds a settable body-current threshold value; generating a switch signal in the computing unit upon the body-current threshold value being exceeded; and controlling a switch element using the switch signal for shutting off or isolating the power source.

公开(公告)号：US11654315B2

公开(公告)日：2023-05-23

申请号：US17318088

申请日：2021-05-12

申请人： Bender GmbH & Co. KG

发明人： Julian Reitz

IPC分类号： A62C3/16 ,  A62C37/36 ,  A62C3/02

CPC分类号： A62C3/16 ,  A62C3/0292 ,  A62C37/04

摘要： An extinguishing-agent discharge device includes a casing having a guide channel for an extinguishing agent, a metallic handle, a hose connection, an adjustment means for regulating an extinguishing-agent supply using a manual control unit and a discharge nozzle. A measuring-current transformer generates a current signal proportional to the electric current flowing in the extinguishing agent; an insulator section divides the casing into a discharge area having the discharge nozzle and an inlet area having the manual control unit, the measuring-current transformer disposed in the insulator section; a first electrode disposed in the discharge area in the extinguishing-agent flow and serves for detecting an extinguishing-agent potential; a second electrode disposed at the handle for detecting a ground potential in the inlet area; and a controller for evaluating the current signal for a potential difference occurring between the extinguishing-agent and ground and having a drive element acting on the adjustment means.

公开(公告)号：US11456589B2

公开(公告)日：2022-09-27

申请号：US16899249

申请日：2020-06-11

申请人： Bender GmbH & Co. KG

发明人： Dieter Hackl ,  Oliver Schaefer

IPC分类号： H02H3/16 ,  H02H3/40 ,  G01R31/52 ,  G01R31/12 ,  G01R31/42 ,  H02M1/36

摘要： Methods and devices for insulation monitoring of an ungrounded IT power supply system having at least two phase conductors includes determining an insulation resistance separately for each phase conductor using a separate response value. In one embodiment of the invention, relevant current and voltage distributions are calculated. In another embodiment, a change time window is set within which a second response value is activated. In yet another embodiment, an option of shutting down/continuing operation of the IT power supply system is offered.