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11. 发明授权

US2510631A Transient compensation of potential-device burdens 失效
标题翻译：潜在设备负担的瞬时补偿
公开(公告)号：US2510631A
公开(公告)日：1950-06-06
申请号：US10898349
申请日：1949-08-06
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： HARDER EDWIN L
IPC分类号： H01G2/00 , H02H7/05
CPC分类号： H01G2/00 , H02H7/05

12. 发明公开

EP0022834A1 PERFECTIONNEMENT AUX TRANSFORMATEURS CAPACITIFS DE TENSION 失效
标题翻译：改进的电容式电压互感器。
公开(公告)号：EP0022834A1
公开(公告)日：1981-01-28
申请号：EP80900240.0
申请日：1980-01-22
申请人： ENERTEC SOCIETE ANONYME
发明人： LE MAGUET, Daniel
IPC分类号： G01R15 , H02H7
CPC分类号： H02H7/05 , G01R15/06
摘要： Selon un mode de realisation, un transformateur capacitif de tension (58) possede deux condensateurs (C1, C2) branches en serie entre un point d'une ligne a haute tension (62) et un point de reference tel que la terre (148) et deux impedances (C3, C4) connectees en serie avec les deux condensateurs. Un detecteur electromagnetique de moyenne tension (95) est branche entre le point commun (94) des deux condensateurs et le point commun (145) des deux impedances. Un detecteur electronique de tension (160) est branche aux bornes du circuit serie forme par les deux impedances, les valeurs de celles-ci etant selectionnees pour que la tension instantanee aux bornes du detecteur electronique soit toujours une fraction constante de la tension prelevee entre la ligne et le point de reference. Application a la commande de protections statiques rapides a partir d'un transformateur capacitif de tension a circuit electromagnetique de moyenne tension.

13. 发明授权

US3571658A Protective system for capacitive voltage transformers including a circuit for t{d fh-coupling 失效
标题翻译：用于电容式电压互感器的保护系统，包括用于电感耦合的电路
公开(公告)号：US3571658A
公开(公告)日：1971-03-23
申请号：US3571658D
申请日：1969-11-10
申请人： MICAFIL AG
发明人： KNOTH WALTER
IPC分类号： H01F38/24 , G01R15/06 , H02H7/05 , H02H7/04
CPC分类号： H02H7/05 , G01R15/06
摘要： A capacitive voltage transformer comprises a transformer having its primary winding connected across an intermediate section of a plurality of capacity sections connected in series between a high voltage line and ground to form a voltage divider. The transformer is provided with a protective circuit which serves to switch in a protective damping burden on the transformer in the presence of transient oscillation phenomena, and the circuit connections between the transformer primary and the intermediate capacity section include a choke coil and a low-ohmic blocking coil to improve the transformer for coupling high frequency signals to the line for carrier type communication.

14. 发明授权

US3458764A Protective system for capacitive voltage transformers 失效
标题翻译：电容式变压器保护系统
公开(公告)号：US3458764A
公开(公告)日：1969-07-29
申请号：US3458764D
申请日：1967-03-07
申请人： MICAFIL AG
发明人： GERTSCH GEORGES ALBERT , KNOTH WALTER
IPC分类号： H02H7/10 , G01R15/06 , H01G2/00 , H02H1/00 , H02H7/05 , H02H9/00 , H02H7/14
CPC分类号： H01G2/00 , G01R15/06 , H02H1/00 , H02H7/05 , H02H9/007

15. 发明授权

US3240957A Capacitor potential device 失效
标题翻译：电容器电位器件
公开(公告)号：US3240957A
公开(公告)日：1966-03-15
申请号：US26836763
申请日：1963-03-27
申请人： NISSIN ELECTRIC CO LTD
发明人： NISHIDAI JUN
IPC分类号： H02H7/05 , H02H9/00
CPC分类号： H02H7/05 , H02H9/007

16. 发明公开

EP2693587A1 Reliable device for protection of voltage transformers 审中-公开
标题翻译： ZuverlässigeVorrichtung zum Schutz von Spannungstransformatoren
公开(公告)号：EP2693587A1
公开(公告)日：2014-02-05
申请号：EP12005657.7
申请日：2012-08-03
申请人： ABB Technology AG
发明人： Pavlas, Marek , Javora, Radek , Honzak, Ales
IPC分类号： H02H9/00 , H02H7/05
CPC分类号： H02H7/05 , H02H3/05 , H02H9/007
摘要： The invention relates to a reliable device for protection of voltage transformers from ferroresonant oscillation influences, with input terminals, power supply module, control unit, switching element and burden resistor.
In order to enhance the operation of such protection device, each of the power supply module (2, 12), control unit (3, 13), switching element (4, 14) and burden resistor (5, 15) are arranged at least twice in parallel, in order to fulfill redundancy in each of its functions, and that the control unit operates the switching device, which is connected in series with the burden resistor connected in open-delta circuit of three single-phase voltage transformers.
摘要翻译：本发明涉及一种用于保护变压器免受铁共振振荡影响的可靠装置，具有输入端子，电源模块，控制单元，开关元件和负载电阻器。为了增强这种保护装置的操作，至少设置电源模块（2,12），控制单元（3,13），开关元件（4,14）和负载电阻（5,15）两次并联，以实现其功能中的冗余，并且控制单元操作与三个单相电压互感器的开放三角形电路中连接的负载电阻串联连接的开关装置。

17. 发明授权

EP0022834B1 PERFECTIONNEMENT AUX TRANSFORMATEURS CAPACITIFS DE TENSION 失效
标题翻译：关于电压电容变压器的改进
公开(公告)号：EP0022834B1
公开(公告)日：1983-05-11
申请号：EP80900240.5
申请日：1980-01-22
申请人： ENERTEC SOCIETE ANONYME
发明人： LE MAGUET, Daniel
IPC分类号： G01R15/06 , H02H7/04
CPC分类号： H02H7/05 , G01R15/06
摘要： According to one embodiment, a voltage capacitive transformer (58) is provided with two capacitors (C1, C2) connected in series between a point of a high voltage line (62) and a reference point such as the earth (148) and two impedences (C3, C4) connected in series with the two capacitors. A medium voltage electromagnetic detector (95) is connected between the common point (94) of the two capacitors and the common point (145) of the two impedences. A voltage electronic detector (160) is connected to the terminals of the series circuit formed by the two impedences, the values of which are selected so that the instantaneous voltage across the terminals of the electronic detector is always a constant fraction of the voltage measured between the line and the reference point. Application to the control of fast static protections from a voltage capacitive transformer with medium voltage electromagnetic circuit.

18. 发明专利

JPS5118054B1 JPS5118054B1 - 失效
公开(公告)号：JPS5118054B1
公开(公告)日：1976-06-07
申请号：JP9356169
申请日：1969-11-22
IPC分类号： H01F38/24 , G01R15/06 , H02H7/05 , H01F40/04
CPC分类号： H02H7/05 , G01R15/06

19. 发明授权

US11973337B2 Ferromagnetic harmonic elimination method for active matched resistance voltage transformer based on PID adjustment 有权
公开(公告)号：US11973337B2
公开(公告)日：2024-04-30
申请号：US18451669
申请日：2023-08-17
申请人： Qujing Power Supply Bureau of Yunnan Power Grid Co., Ltd
发明人： Xiaohong Zhu , Lianjing Yang , Fei Mao , Rong Zhang , Yang Yang , Jiangyun Su , Wenfei Feng , Zhe Li , Pengjin Qiu , Jianbin Li , Zhikun Hong , Weirong Yang , Changjiu Zhou , Yingqiong Zhang , Rui Xu , Guibing Duan
IPC分类号： H02H7/05 , G05B11/42 , H01F27/34 , H02J3/01 , G06F17/16
CPC分类号： H02H7/05 , G05B11/42 , H01F27/343 , H02J3/01 , G06F17/16 , H02J2203/20
摘要： This invention relates to the technical field of harmonic elimination for ferromagnetic resonance for a voltage transformer (abbreviated as PT), in particular, to a harmonic elimination method for ferromagnetic resonance for an active resistance-matching voltage transformer based on PID-adjustment, including compiling a resistance matching algorithm; designing and building a harmonic elimination control system based on the PID control strategy; presetting an active resistance-matching strategy; designing an engineering scheme for placing resistors. The present invention can solve the contradiction between the standards of the harmonic elimination resistance and the winding overload in the open triangle of the voltage transformer when the single-phase ground fault occurs and the fault is eliminated; avoiding the technical difficulties that the characteristics of single-phase ground fault and power frequency resonance are difficult to distinguish and the ferromagnetic resonance caused by single-phase ground fault; ensuring that the voltage transformer PT is not overloaded and burned.

20. 发明申请

US20180026437A1 VEHICLE ACCESSORY POWER SWITCH 审中-公开
公开(公告)号：US20180026437A1
公开(公告)日：2018-01-25
申请号：US15654349
申请日：2017-07-19
申请人： DRIVE CREEK LLC
发明人： Scott Hewelt , Kevin Hibbard
IPC分类号： H02H7/05 , H03K17/0814 , H01H9/16
CPC分类号： H02H7/05 , B60R16/0238 , H01H9/162 , H01H85/32 , H01H2085/208 , H02H3/046 , H03K17/08142 , H03K2017/9507
摘要： An electrical switch for providing power from a power source to a component may include a voltage supervisor having an input and an output, a voltage divider, electrically coupled between the input of the voltage supervisor and ground, an RC filter electrically coupled to the output of the voltage supervisor, and a field-effect transistor having a first terminal coupled to the RC filter and a second terminal coupled to an output of the switch, the output configured to be electrically coupled to the component. A switch may additionally or alternatively include a light source electrically that emits light when power is provided from the input of the switch to the component, the light source arranged proximate a fuse so as to illuminate the fuse.

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