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1. 发明申请

WO2020102973A1 APPARATUS FOR MONITORING TEMPERATURE AND VOLTAGE OF CABLE JOINT OF CABLE CONNECTED TO GAS INSULATED SWITCHGEAR, AND ASSOCIATED MANUFACTURING METHOD 审中-公开
公开(公告)号：WO2020102973A1
公开(公告)日：2020-05-28
申请号：PCT/CN2018/116423
申请日：2018-11-20
申请人： ABB SCHWEIZ AG , XU, Baokun , ZHUANG, Genhuang , ZHUANG, Zhijian
发明人： XU, Baokun , ZHUANG, Genhuang , ZHUANG, Zhijian
IPC分类号： G01D21/02
摘要： An apparatus (100) for monitoring a temperature and a voltage of a cable joint (201) of a cable (200) connected to gas insulated switchgear (300). The apparatus (100) comprises: an adaptor (101) adapted to be coupled to a cable socket (31) of the switchgear (300), a voltage detector (104) coupled to the adaptor (101) and configured to detect a voltage of the adaptor (101); a temperature sensor (102) arranged in the adaptor (101) and configured to detect a temperature of the adaptor (101); a processing circuitry (103) configured to determine the temperature of the cable joint (201) based on the detected temperature of the adaptor (101). A ground terminal (GND2) of the temperature sensor (102) is coupled to a ground terminal (GND1) of the processing circuitry (103), so as to electrically shield the processing circuitry (103) from the voltage of the adaptor (101). The both temperature and voltage of the cable joint (201) may be determined conveniently and precisely. In addition, the impact of the voltage at the cable joint (201) on the processing circuitry (103) can be reduced.

2. 发明申请

WO2019157619A1 BUSHINGS, SYSTEM FOR TEMPERATURE MEASUREMENT AND METHOD FOR INSTALLING MEASURING ASSEMBLY IN BUSHING IN SWITCHGEAR 审中-公开
公开(公告)号：WO2019157619A1
公开(公告)日：2019-08-22
申请号：PCT/CN2018/076614
申请日：2018-02-13
申请人： ABB SCHWEIZ AG , ZHANG, Yibo , LI, Chun , CHEN, Jiansheng , TAO, Zhiqiang , XU, Baokun , ZHUANG, Zhijian , MENG, Delun
发明人： ZHANG, Yibo , LI, Chun , CHEN, Jiansheng , TAO, Zhiqiang , XU, Baokun , ZHUANG, Zhijian , MENG, Delun
IPC分类号： G01K7/02
摘要： A bushing(100) comprises a conductor(110) and an insulating layer(120) which wraps around the conductor(110). The bushing(100) further comprises a groove(130) arranged between the conductor(110) and the insulating layer(120), and the bushing(100) also comprises a measuring assembly(140) received in the groove(130) and surrounding the conductor(110), wherein the measuring assembly(140) includes at least one measuring apparatus. Each measuring apparatus comprises a temperature sensor configured to measure a temperature of the conductor(110) and a passive wireless communication module configured to transmit the measured temperature. The temperature of the bushing(100) can be measured accurately and effectively, thereby improving the reliability and safety of the bushing(100) as well as the electrical device such as switchgear.

3. 发明申请

WO2020073201A1 METHOD AND SYSTEM FOR CIRCUIT BREAKER CONDITION MONITORING 审中-公开
公开(公告)号：WO2020073201A1
公开(公告)日：2020-04-16
申请号：PCT/CN2018/109525
申请日：2018-10-09
申请人： ABB SCHWEIZ AG , CHEN, Niya , RUAN, Jiayang , YU, Rongrong , ZHUANG, Zhijian
发明人： CHEN, Niya , RUAN, Jiayang , YU, Rongrong , ZHUANG, Zhijian
IPC分类号： G01R31/327 , G01J5/00 , G06K9/60
摘要： A method and system for circuit breaker condition monitoring are disclosed. The method comprises: obtaining an image of a circuit breaker(202); extracting from the image one or more features related to a state of the circuit breaker(204); comparing the extracted one or more features with benchmark data characterizing a predetermined state of the circuit breaker(206); determining a health condition of the circuit breaker based on the comparison(208).

4. 发明申请

WO2021003719A1 SENSING APPARATUS AND SENSING METHOD 审中-公开
公开(公告)号：WO2021003719A1
公开(公告)日：2021-01-14
申请号：PCT/CN2019/095490
申请日：2019-07-10
申请人： ABB SCHWEIZ AG , ZHUANG, Zhijian , LU, Congwen , YE, Xin
发明人： ZHUANG, Zhijian , LU, Congwen , YE, Xin
IPC分类号： G01R19/00
摘要： A sensing apparatus and a sensing method are provided. The sensing apparatus (100) comprises a current sensing circuit (104) configured to sense a secondary current generated from a current transformer (102) to generate a secondary current signal representing the secondary current, the current transformer (102) being configured to receive a primary current from a bus bar to generate the secondary current for supplying a power to the sensing apparatus (100); and a controller (106) configured to detect a peak value of the secondary current signal during a saturation of the current transformer (102), and configured to measure the primary current based on the peak value of the secondary current signal by a look-up table.

5. 发明申请

WO2019183851A1 APPARATUS AND METHOD FOR FAULT DIAGNOSIS FOR CIRCUIT BREAKER 审中-公开
公开(公告)号：WO2019183851A1
公开(公告)日：2019-10-03
申请号：PCT/CN2018/080946
申请日：2018-03-28
申请人： ABB SCHWEIZ AG , ZHANG, Xin , ZHUANG, Zhijian
发明人： ZHANG, Xin , ZHUANG, Zhijian
IPC分类号： G01R31/327
摘要： A fault diagnosis apparatus (100) and method (1200) for a circuit breaker (200), comprises at least one sensor (101) coupled to at least one mechanism (201) arranged in the circuit breaker (200) and configured to obtain waveform data of a parameter over time, the waveform data related to an operation state of the at least one mechanism (201); and a processing unit (102) coupled to the at least one sensor (101) and configured to analyze the waveform data to obtain at least one feature value (1220); determine a dissimilarity between the at least one feature value and a threshold matrix (1230); and in response to the dissimilarity being greater than a threshold dissimilarity, determine that the at least one mechanism (201) has a fault (1240). With the fault diagnosis apparatus (100), the fault in the at least one mechanism (201) of the circuit breaker (200) may be determined in advance.

6. 发明申请

WO2016074171A1 PIVOT SUPPORTING STRUCTURE AND CIRCUIT BREAKER 审中-公开
标题翻译：枢纽支撑结构和断路器
公开(公告)号：WO2016074171A1
公开(公告)日：2016-05-19
申请号：PCT/CN2014/090921
申请日：2014-11-12
申请人： ABB TECHNOLOGY LTD , ZHUANG, Zhijian , YE, Xin , CHENET, Luciano
发明人： ZHUANG, Zhijian , YE, Xin , CHENET, Luciano
IPC分类号： G01R31/327
CPC分类号： H01H71/0264 , G01L1/22 , G01R31/3274 , H01H1/0015 , H01H11/0062 , H01H33/008 , H01H2033/6667 , H01H2239/052
摘要： A pivot supporting structure for a circuit breaker and a circuit breaker. The pivot supporting structure (25) comprises: a supporting body (251) having a supporting hole (2511) for receiving and pivotally supporting a pivot pin connected to an actuating mechanism of the circuit breaker, wherein at least one strain gauge are mounted to the supporting body (251) for sensing the force acting on the pivot supporting structure by the actuating mechanism. This pivot supporting structure can accurately sense the characteristic force applied, such that the contact force and mechanical characteristics of the circuit breaker can be on-line monitored.
摘要翻译：一种用于断路器和断路器的枢轴支撑结构。枢轴支撑结构（25）包括：支撑体（251），其具有用于接收和枢转地支撑连接到断路器的致动机构的枢轴销的支撑孔（2511），其中至少一个应变计安装到支撑体（251），用于感测由致动机构作用在枢转支撑结构上的力。该枢转支撑结构可以精确地感测施加的特征力，使得断路器的接触力和机械特性可以在线监测。

7. 发明申请

WO2016049825A1 METHOD AND DEVICE FOR MONITORING CIRCUIT BREAKER 审中-公开
标题翻译：用于监控断路器的方法和装置
公开(公告)号：WO2016049825A1
公开(公告)日：2016-04-07
申请号：PCT/CN2014/087840
申请日：2014-09-29
申请人： ABB TECHNOLOGY LTD , ZHUANG, Zhijian , YE, Xin , LU, Congwen
发明人： ZHUANG, Zhijian , YE, Xin , LU, Congwen
IPC分类号： G01R31/327 , G01M13/00
CPC分类号： G01R31/327 , G01R31/3274
摘要： A method for monitoring a circuit breaker is provided. The method comprises the following steps: obtaining (110) a characteristic force associated with an actuating mechanism (2) of the circuit breaker over the time；and determining (120) the time point when the closing and/or opening of the circuit breaker occurs by identifying a variation of the force. The step of determining (120) further comprises determining the moment when a variation increase of the characteristic force occurs as the time point of the closing of the circuit breaker；and determining the moment when a variation decrease of the characteristic force occurs as the time point of the opening of the circuit breaker. The method can be used to accurately on-line monitor the closing and opening time point of the circuit breaker.
摘要翻译：提供一种用于监控断路器的方法。该方法包括以下步骤：在时间上获得（110）与断路器的致动机构（2）相关联的特征力;以及确定（120）当断路器的闭合和/或断开发生时的时间点通过识别力的变化。确定（120）的步骤还包括确定当断路器闭合的时间点发生特征力的变化增加的时刻;以及确定当特征力的变化减小作为时间点发生的时刻断路器的开路。该方法可用于准确在线监控断路器的闭合和打开时间点。

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