WO2019234927A1 - Disjoncteur électronique - Google Patents

Disjoncteur électronique Download PDF

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Publication number
WO2019234927A1
WO2019234927A1 PCT/JP2018/022086 JP2018022086W WO2019234927A1 WO 2019234927 A1 WO2019234927 A1 WO 2019234927A1 JP 2018022086 W JP2018022086 W JP 2018022086W WO 2019234927 A1 WO2019234927 A1 WO 2019234927A1
Authority
WO
WIPO (PCT)
Prior art keywords
microcomputer
current
trip
data
signal
Prior art date
Application number
PCT/JP2018/022086
Other languages
English (en)
Japanese (ja)
Inventor
幸樹 原田
野村　敏光
雄介 瀧川
聖崇 近井
知是 渡辺
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2018/022086 priority Critical patent/WO2019234927A1/fr
Priority to JP2020523963A priority patent/JP6947302B2/ja
Priority to CN201880094280.3A priority patent/CN112236914A/zh
Priority to TW107137763A priority patent/TWI686027B/zh
Publication of WO2019234927A1 publication Critical patent/WO2019234927A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/093—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current with timing means

Definitions

  • FIG. 1 is a block diagram of an electronic circuit breaker according to Embodiment 1 of the present invention. It is a functional block diagram which shows the function of the microcomputer in the electronic circuit breaker shown in FIG. It is explanatory drawing for demonstrating the FIFO table of the current information processing part shown in FIG. It is a block diagram of the electronic circuit breaker which concerns on Embodiment 2 of this invention. It is a functional block diagram which shows the function of the microcomputer in the electronic circuit breaker shown in FIG. It is a figure which shows the structure of the digital signal D1 with a tag which is the output data of the tag data provision part in the electronic circuit breaker shown in FIG.
  • the first microcomputer 10 includes a CPU 101, a ROM 102, and a RAM 103 that constitute a microcomputer, an A / D conversion circuit 104 that converts an analog voltage signal from the current detection circuit 4 into a digital signal at a cycle of, for example, 500 microseconds, and the like.
  • the first communication circuit 105 for receiving setting data from the second microcomputer 20 at the time of startup and periodically communicating with the second microcomputer 20 and the output port 106 for driving the tripping circuit 6 are configured. ing.
  • the digital value corresponding to the current value converted by the A / D conversion circuit 104 is converted from the A / D conversion circuit 104 to the first communication circuit 105,
  • the maximum value calculation unit 108b and the effective value calculation unit 108c are input.
  • the maximum value calculation unit 108 b and the effective value calculation unit 108 c calculate the maximum value and the effective value in a predetermined cycle, respectively, and input these digital values to the first communication circuit 105.
  • Current information such as the digital value, effective value, and maximum value of the A / D-converted load current is transferred from the first communication circuit 105 to the first communication circuit 205 of the second microcomputer 20 through communication in a predetermined cycle.
  • the first communication circuit 205 delivers the received current information to the short time delay trip processor 208b and the long time trip processor 208c.
  • the current information processing unit 208d of the second microcomputer 20 stores a digital value of a predetermined number of load currents, which are A / D converted, received from the first microcomputer 10 in a FIFO table.
  • a digital value of a predetermined number of load currents which are A / D converted
  • FIG. 3B In the FIFO table of the current information processing unit 208d, when the FIFO table is full as shown in FIG. 3A and a new digital value (n + 1) is written, as shown in FIG. 3B.
  • the digital value (1) which is the oldest data is updated so as to be deleted from the FIFO table.
  • FIG. 9 is a diagram showing the current shown in FIG. explanatory view for explaining the FIFO table of the information processing unit
  • 10 is a diagram showing a structure of INST tag data
  • T I is the output data of the instantaneous tripping unit in electronic circuit breaker shown in FIG. 5
  • FIG. 1 1 is a diagram showing a structure of SHORT tag data
  • T S is the output data of the Short-time tripping processing unit in electronic circuit breaker shown in FIG. 5
  • the length limit Toki ⁇ in Figure 12 electronic circuit breaker shown in FIG. 5
  • It is a figure which shows the structure of the LONG tag data TL which is the output data of a removal process part.
  • the first microcomputer 10 is provided with a second communication circuit 107 for transmitting a digital signal with tag data to a current information processing unit 308 described later.
  • the second microcomputer 20 transmits tag information for informing the current information processing unit 308 of the timing at which the interruption is performed.
  • Two communication circuits 107 are provided.
  • the “tagged current signal data” described in the claims means the tagged digital signal D1, the tagged maximum value data D2, and the tagged effective value data D3.
  • the current signal output from the current detection device 3 is input, the first microcomputer 10 that outputs the instantaneous trip signal and the setting unit 5 are connected, and the instantaneous trip is performed.
  • the characteristics are transmitted to the first microcomputer 10, and the second microcomputer 20 that acquires the current information flowing through the electric circuit 1 from the first microcomputer 10 and outputs the time trip signal, the instantaneous trip signal S1, and the time trip signal S2
  • a tripping device 7 that opens the switching contact 2 on the basis
  • a third microcomputer 30 having a current information processing unit 208d that acquires current information of the electric circuit 1 from the first microcomputer 10 and displays or outputs the current information to the outside;
  • the second communication circuit 107 that has received the tagged digital signal E1 transmits the tagged digital signal E1 to the current information processing unit 308 via the first communication circuit 304 of the third microcomputer 30.
  • the current information processing unit 308 divides the received digital signal with tag E1 into A / D conversion data d1 and tag data T1 and stores them in the FIFO table.
  • the first communication circuit 205 of the second microcomputer 20 receives the INST tag data T I from the instantaneous tripping unit 108a, via the second communication circuit 209, the INST tag data T I to the third microcomputer 30 Send.
  • the second communication circuit 305 of the third microcomputer 30 that has received the INST tag data T I from the second microcomputer 20, by passing the INST tag data T I to the current information processing unit 308, and the instantaneous tripping by the first microcomputer 10 Notify tag data when is executed.
  • the maximum value calculation unit 108b checks the A / D conversion data d1 of the tagged digital signal E1 received from the tag data adding unit 108d, and four times the first predetermined cycle (for example, 10 msec which is a half cycle of 50 Hz). The maximum value data d2 at 40 msec) is calculated. The last tag data T1 in the period is added to the maximum value data d2, and the tagged maximum value data E2 shown in FIG. 17 is generated and transmitted from the first communication circuit 105 to the second microcomputer 20.
  • the first predetermined cycle for example, 10 msec which is a half cycle of 50 Hz.
  • the effective value calculation unit 108c that has received the tagged digital signal E1 from the tag data adding unit 108d receives a second predetermined period (for example, a period of 50 Hz) from the digital signal of the tagged digital signal E1 received from the tag data adding unit 108d. At the end of the period used for the calculation, that is, the tag data of the latest tagged digital signal E1 is added to the effective value calculated by the calculation. 19 is transmitted from the first communication circuit 105 to the second microcomputer 20 as tagged effective value data E3.
  • a second predetermined period for example, a period of 50 Hz
  • the current information displayed or output to the outside by the current information processing unit 308 is a current waveform in the electric circuit 1 or a harmonic current of the electric circuit 1 from immediately before the tripping device 7 opens the switching contact 2 to the opening.
  • the cause of the interruption by the electronic circuit breaker 600 can be easily grasped.

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

La présente invention concerne un disjoncteur électronique (400) pourvu : d'un contact d'ouverture/fermeture (2) pour ouvrir et fermer un trajet électrique (1) ; d'un dispositif de détection de courant (3) pour détecter le courant du trajet électrique (1) ; d'une unité de réglage (5) pour régler une caractéristique de déclenchement instantané, une caractéristique de déclenchement de limite de temps court, et une caractéristique de déclenchement de limite de temps long pour ouvrir le contact d'ouverture/fermeture (2) en fonction du courant circulant à travers le trajet électrique (1) ; d'un premier micro-ordinateur (10) recevant le signal de sortie du dispositif de détection de courant (3) et émettant un signal de déclenchement instantané ; d'un second micro-ordinateur (20) raccordé à l'unité de réglage (5), transmettant la caractéristique de déclenchement instantané au premier micro-ordinateur (10), et acquérant des informations du courant circulant à travers le trajet électrique (1) à partir du premier micro-ordinateur (10) et émettant un signal de déclenchement de limite de temps ; d'un dispositif de déclenchement (7) pour ouvrir le contact d'ouverture/fermeture (2) sur la base du signal de déclenchement instantané S1 et du signal de déclenchement de limite de temps S2 ; et d'une unité de traitement d'informations de courant pour acquérir les informations de courant du trajet électrique (1) à partir du premier micro-ordinateur (10) et afficher ou fournir de manière externe les informations de courant.
PCT/JP2018/022086 2018-06-08 2018-06-08 Disjoncteur électronique WO2019234927A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2018/022086 WO2019234927A1 (fr) 2018-06-08 2018-06-08 Disjoncteur électronique
JP2020523963A JP6947302B2 (ja) 2018-06-08 2018-06-08 電子式回路遮断器
CN201880094280.3A CN112236914A (zh) 2018-06-08 2018-06-08 电子式电路断路器
TW107137763A TWI686027B (zh) 2018-06-08 2018-10-25 電子式電路斷路器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/022086 WO2019234927A1 (fr) 2018-06-08 2018-06-08 Disjoncteur électronique

Publications (1)

Publication Number Publication Date
WO2019234927A1 true WO2019234927A1 (fr) 2019-12-12

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ID=68770929

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/022086 WO2019234927A1 (fr) 2018-06-08 2018-06-08 Disjoncteur électronique

Country Status (4)

Country Link
JP (1) JP6947302B2 (fr)
CN (1) CN112236914A (fr)
TW (1) TWI686027B (fr)
WO (1) WO2019234927A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4175093A1 (fr) * 2021-10-29 2023-05-03 Eaton Intelligent Power Limited Unité de déclenchement à analyse de charge élevée

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JPS62173914A (ja) * 1986-01-27 1987-07-30 三菱電機株式会社 回路しや断器
WO1996028871A1 (fr) * 1995-03-15 1996-09-19 Hitachi, Ltd. Coupe-circuit
JP2002345145A (ja) * 2001-05-18 2002-11-29 Mitsubishi Electric Corp 回路遮断器
JP2008099442A (ja) * 2006-10-12 2008-04-24 Toshiba Corp ディジタル型保護制御装置とそのデータ表示方法およびデータ表示プログラム
JP2015035073A (ja) * 2013-08-08 2015-02-19 ルネサスエレクトロニクス株式会社 半導体装置及び半導体装置の制御方法
WO2017141430A1 (fr) * 2016-02-19 2017-08-24 三菱電機株式会社 Dispositif d'enregistrement de forme d'onde de défaut
JP2018067049A (ja) * 2016-10-17 2018-04-26 富士電機株式会社 マルチプロセッサシステム

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JP4682103B2 (ja) * 2006-07-20 2011-05-11 三菱電機株式会社 電子式回路遮断器
GB0812335D0 (en) * 2008-07-05 2008-08-13 Qinetiq Ltd Circuit breaker
CN102110555B (zh) * 2009-12-24 2013-01-23 张世兴 跟踪负载变化自动额定值断路器
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CN104488059B (zh) * 2012-07-11 2016-09-28 三菱电机株式会社 电路断路器
CN103166319A (zh) * 2013-03-17 2013-06-19 吉首大学 电力线路异常漏电检测与远程控制装置和方法
CN103247489B (zh) * 2013-05-16 2015-11-04 天津市百利电气有限公司 无接地电流采样专用互感器的断路器电子脱扣器
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Publication number Priority date Publication date Assignee Title
JPS62173914A (ja) * 1986-01-27 1987-07-30 三菱電機株式会社 回路しや断器
WO1996028871A1 (fr) * 1995-03-15 1996-09-19 Hitachi, Ltd. Coupe-circuit
JP2002345145A (ja) * 2001-05-18 2002-11-29 Mitsubishi Electric Corp 回路遮断器
JP2008099442A (ja) * 2006-10-12 2008-04-24 Toshiba Corp ディジタル型保護制御装置とそのデータ表示方法およびデータ表示プログラム
JP2015035073A (ja) * 2013-08-08 2015-02-19 ルネサスエレクトロニクス株式会社 半導体装置及び半導体装置の制御方法
WO2017141430A1 (fr) * 2016-02-19 2017-08-24 三菱電機株式会社 Dispositif d'enregistrement de forme d'onde de défaut
JP2018067049A (ja) * 2016-10-17 2018-04-26 富士電機株式会社 マルチプロセッサシステム

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4175093A1 (fr) * 2021-10-29 2023-05-03 Eaton Intelligent Power Limited Unité de déclenchement à analyse de charge élevée
US20230133287A1 (en) * 2021-10-29 2023-05-04 Eaton Intelligent Power Limited Trip unit with high-load analysis

Also Published As

Publication number Publication date
JPWO2019234927A1 (ja) 2021-01-07
TW202002443A (zh) 2020-01-01
JP6947302B2 (ja) 2021-10-13
TWI686027B (zh) 2020-02-21
CN112236914A (zh) 2021-01-15

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