公开(公告)号：EP4431958A1

公开(公告)日：2024-09-18

申请号：EP21945361.0

申请日：2021-11-23

申请人： Hyosung Heavy Industries Corporation

发明人： AHN, Hyun Mo ,  KIM, Joong Kyoung ,  CHUNG, Young Hwan

IPC分类号： G01R31/327 ,  G01R15/18 ,  H01F27/30

CPC分类号： H01F27/30 ,  H01F38/30 ,  G01R15/181 ,  G01R19/16547

摘要： The present invention relates to a circuit breaker operating current/fault current measuring device using a single Rogowski coil has an advantage of reducing an installation space and a manufacturing cost by simultaneously measuring an operating current and a fault current with the single Rogowski coil and has an advantage of improving reliability by simultaneously satisfying accuracy required for measurement of the operating current and the fault current.
The circuit breaker operating current/fault current measuring device using a single Rogowski coil according to the present invention is configured with a Rogowski coil installed to wrap around a current-carrying conductor, a protection circuit outputting a fault voltage based on a voltage generated from a tap installed on a portion of the Rogowski coil, and a measurement circuit outputting an operating voltage based on a voltage generated in the entire coil of the Rogowski coil.

公开(公告)号：EP4275061B1

公开(公告)日：2024-09-18

申请号：EP22703943.5

申请日：2022-01-06

IPC分类号： G01R19/25 ,  G01R22/06 ,  G01R19/165

CPC分类号： G01R19/2513 ,  G01R22/063 ,  G01R19/16528 ,  G01R19/16547 ,  G01R19/1659

公开(公告)号：EP3274728A1

公开(公告)日：2018-01-31

申请号：EP16715947.4

申请日：2016-03-25

申请人： Qualcomm Incorporated

发明人： VENERUS, Christian ,  SWAMINATHAN, Ashok

IPC分类号： G01R19/165 ,  G06F1/26 ,  H03K19/003 ,  H02M1/00

CPC分类号： H02M7/217 ,  G01R19/0084 ,  G01R19/165 ,  G01R19/16547 ,  G06F1/26 ,  G06F1/28 ,  G06F1/324 ,  H02M2001/0025 ,  H03K19/00346 ,  Y02D10/126

摘要： A droop detector includes: a plurality of input nodes, each input node configured to receive a supply voltage; an output node; a plurality of detector modules, each detector module comprises: an input terminal coupled to each input node, an output terminal coupled to the output node; and an input tracking unit configured as a voltage follower to detect a droop in the supply voltage coupled to each input node and output an output voltage that follows the supply voltage on the output terminal when the droop is detected on the supply voltage; and a comparator coupled to the output node and configured to output a control signal when the droop is detected.

公开(公告)号：EP2619599B1

公开(公告)日：2014-08-27

申请号：EP10779545.2

申请日：2010-11-17

申请人： Siemens Aktiengesellschaft

发明人： HERTZ, Dirk ,  SCHÖNENBERG, Marco ,  SEITZ, Johann ,  ZITZLER, Stefan

IPC分类号： G01R19/165 ,  G01R29/18 ,  H02K11/00

CPC分类号： H02K11/001 ,  G01R19/16547 ,  G01R29/18 ,  H02K11/20

公开(公告)号：EP2574937A2

公开(公告)日：2013-04-03

申请号：EP12184374.2

申请日：2012-09-14

申请人： Hamilton Sundstrand Corporation

发明人： Varland, Eric O. ,  Hamilton, Karl James ,  Chandler, Philip

IPC分类号： G01R19/155 ,  G01R19/165

CPC分类号： G01R19/155 ,  G01R19/16547

摘要： A fast AC voltage detector includes a bridge rectifier connected to an AC power source, a threshold detector connected to an output of the bridge rectifier, a voltage isolation circuit connected to the threshold detector, a continuous voltage averager connected to an output of the voltage isolation circuit, and a Schmidt trigger connected to the continuous voltage averager. The Schmidt trigger is operable to output a first voltage level when a load is preset on said AC power source and a second voltage level when no load is present on said AC power source.

摘要翻译： 快速AC电压检测器包括连接到AC电源的桥式整流器，连接到桥式整流器的输出的阈值检测器，连接到阈值检测器的电压隔离电路，连接到电压隔离输出的连续电压平均器 电路和连接到连续电压平均器的施密特触发器。 当在所述AC电源上预设负载时，施密特触发器可操作以输出第一电压电平，并且当所述AC电源上没有负载时，施加第二电压电平。

公开(公告)号：EP2383581A1

公开(公告)日：2011-11-02

申请号：EP11163063.8

申请日：2011-04-19

申请人： LSIS Co., Ltd.

发明人： Lee, Chung Woo

IPC分类号： G01R19/10 ,  G01R19/165 ,  H02H3/38

CPC分类号： G01R19/16547 ,  G01R19/10 ,  G01R19/16571

摘要： Disclosed is an apparatus (20) for monitoring a fault current in a power system. The apparatus does not rectify an AC signal detected from a power system but full wave-rectifies the AC signal using a bridge diode (21-1,21-2) and then monitors a fault current. Particularly, current and voltage in the power system are respectively detected through a current transformer (13) and a Rogowski coil (15), and presence of occurrence of an accident is parallely monitored using the detected current and voltage. Thus, it is possible to prevent a response delay due to a rising time generated when the AC signal is smoothed to a DC signal through a capacitor and to prevent malfunction caused by chattering while performing a fast response at the time when a fault current is generated for the first time.

摘要翻译： 公开了一种用于监视电力系统中的故障电流的装置（20）。 该装置不会纠正从电力系统检测到的交流信号，而是使用桥二极管（21-1,21-2）对AC信号进行全波整流，然后监视故障电流。 特别地，电力系统中的电流和电压分别通过电流互感器（13）和罗戈夫斯基线圈（15）检测到，并且使用检测到的电流和电压平行地监视事故的发生。 因此，可以防止当通过电容器将AC信号平滑到DC信号时产生的上升时间的响应延迟，并且在产生故障电流时执行快速响应时防止由抖动引起的故障 首次。

公开(公告)号：EP1654547B1

公开(公告)日：2011-09-14

申请号：EP04763214.6

申请日：2004-07-14

申请人： BSH Bosch und Siemens Hausgeräte GmbH

发明人： DUSCHER, Christian

IPC分类号： G01R19/165

CPC分类号： G01R31/2825 ,  G01R19/16547 ,  G01R19/2513 ,  G01R31/42

摘要： The invention relates to a method and a circuit arrangement for monitoring the mode of operation of one or more load circuits, especially of a domestic appliance, which comprises a controlled semiconductor switch, such as a triac, and an electric consumer. Said switches are supplied by at least one alternating voltage source that supplies an alternating voltage including positive and negative voltage half-waves. The invention is characterized in that the currents flowing through all controlled semiconductor switches (T1, T2) and electric consumers (R1, R2) are guided through a common low-impedance precision resistor (Rm). The respective voltage drop occurring on this low-impedance precision resistor (Rm) is separately evaluated with respect to the amplitudes of the positive and negative voltage half-waves.

公开(公告)号：EP1884787A1

公开(公告)日：2008-02-06

申请号：EP06014223.9

申请日：2006-07-10

申请人： S. THIIM ApS

发明人： Thiim, Søren

IPC分类号： G01R19/252

CPC分类号： G01R19/252 ,  G01R19/16547 ,  G01R19/2513 ,  G01R31/025

摘要： The invention concerns a current sensor (22, 24; 26) for measuring electric current in a conductor. It is adapted for a short circuit indicator system (1). It comprises current responsive means, such as a current transformer (2210), adapted for mounting adjacent to said electric conductor: and sensor circuitry (2220) means for emitting a non-electrical wave signal as an output: said sensor circuitry (2220) comprises current level indication circuitry (2222) comprising a current-to-frequency converter adapted to provide said non-electrical wave signal as a current level indication pulse signal (CS 1 ) having a pulse frequency (Pf ca ) which is proportional to said electric conductor current, when the latter is within a predetermined current interval (l 1 - l 2 ). Thus, a low cost sensor is provided. The invention further relates to a short circuit indicator system (1 ) for an electric conductor. It comprises at least one of the above mentioned current sensors (22; 24; 26); a communication link (32: 34; 36) for relaying at least said non-electrical wave signal from said current sensor; voltage measurement means (40; 2240) for performing a voltage measurement over said electric conductor; a detection relay (51) operable for sensing at least the frequency of at least a current pulse signal and translating it to a current corresponding to the frequency of said current pulse signal; current threshold means operable for determining whether the current corresponding to the frequency of said current pulse signal (CS) is above a predetermined current threshold (I max ): and voltage threshold means operable for determining whether the voltage measured by said voltage measurement means (40; 2240) is below a predetermined voltage threshold (V min ) after a predetermined time period (t 1 ) after said current threshold means has made a positive determination: and short circuit display means (532; 534; 536) operable for indicating that a short circuit has occurred on said electric conductor when said voltage threshold means has made a positive determination. Thus, a rapid and reliable short circuit indicator system is provided, which may be adapted for use for electric conductors in LV, MV and HV power lines.

摘要翻译： 本发明涉及一种电流传感器（22，24; 26），用于测量导体中的电流。 它被用于angepasst短路指示系统（1）。 它包括当前响应装置，：如适于安装相邻于所述电导体的电流互感器（2210）：和传感器电路（2220）用于发射非电波信号作为输出：所述传感器电路（2220）包括 电流幅值指示电路（2222）包括适合于提供所述非电波信号作为电流幅值指示脉冲信号具有一脉冲频率（Pf的CA）（CS 1）成比例的所述电导体的电流 - 频率转换器 电流，当后者处于预定电流间隔（L 1 - 1 2）内。 因此，提供一种低成本的传感器。 本发明还涉及到一个短路指示系统（1），用于在电导体。 它包括上述电流传感器中的至少一个（22; 24; 26）; 为中继来自所述电流传感器的至少所述非电波信号;：通信链路（36 34 32） 电压测量装置（40; 2240），用于执行在所述电导体上的电压测量; 检测继电器（51），其可操作用于至少感测至少一个电流脉冲信号的频率并将其转换成电流对应于所述电流脉冲信号的频率; 电流阈值装置，其可操作用于确定性采矿无论当前对应于所述电流脉冲信号（CS）的频率高于预定电流阈值（I最大）和电压阈值装置，其可操作用于确定性采矿是否由所述电压测量装置测量的电压（40 ; 2240）低于所述电流阈值的装置之后的预定时间段（t 1）之后的预定电压阈值（V分钟）已经作出了肯定的判断：与短路显示装置（532; 534; 536），其可操作用于指示做了 短路发生在所述的电导体，当所述电压阈值装置已经作出了肯定的判断。 因此，快速且可靠的短路指示系统被提供，其可适于使用用于LV，MV和HV电力线的电导体。

公开(公告)号：EP1642142B1

公开(公告)日：2006-11-02

申请号：EP04744359.3

申请日：2004-06-17

申请人： Philips Intellectual Property & Standards GmbH ,  Koninklijke Philips Electronics N.V.

发明人： KADNER, Martin

IPC分类号： G01R19/10 ,  G01R17/14

CPC分类号： G01R19/16547 ,  G01R17/14 ,  G01R31/2884

摘要： To provide a method for the self-testing of a reference voltage in electronic components, by means of which method there is specified a circuit arrangement for a self-test of the reference voltage that can be implemented in the form of an on-chip test, i.e. for which no external reference voltage source is required, provision is made for the reference voltage (Uref) to be fed to a voltage-controlled oscillator whose output forms the input to a Wien­-Robinson bridge whose output signal is checked in a phase detector for its phase shift relative to the input to the Wien-Robinson bridge to check the balance of the Wien-Robinson bridge, the Wien-Robinson bridge being set to be balanced at a frequency (Ωref.test) that is generated in the oscillator at the nominal value (Uref.tes) selected for the reference voltage (Uref), and a pass signal is generated if the bridge is balanced and a fail signal is generated if it is not.

公开(公告)号：EP1654547A1

公开(公告)日：2006-05-10

申请号：EP04763214.6

申请日：2004-07-14

申请人： BSH Bosch und Siemens Hausgeräte GmbH

发明人： DUSCHER, Christian

IPC分类号： G01R19/165

CPC分类号： G01R31/2825 ,  G01R19/16547 ,  G01R19/2513 ,  G01R31/42

摘要： The invention relates to a method and a circuit arrangement for monitoring the mode of operation of one or more load circuits, especially of a domestic appliance, which comprises a controlled semiconductor switch, such as a triac, and an electric consumer. Said switches are supplied by at least one alternating voltage source that supplies an alternating voltage including positive and negative voltage half-waves. The invention is characterized in that the currents flowing through all controlled semiconductor switches (T1, T2) and electric consumers (R1, R2) are guided through a common low-impedance precision resistor (Rm). The respective voltage drop occurring on this low-impedance precision resistor (Rm) is separately evaluated with respect to the amplitudes of the positive and negative voltage half-waves.