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1. WO2010150706 - APPARATUS FOR PROTECTING DIRECT CURRENT BRANCH CIRCUIT

Publication Number WO/2010/150706
Publication Date 29.12.2010
International Application No. PCT/JP2010/060362
International Filing Date 18.06.2010
IPC
H02B 1/40 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
1Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
26Casings; Parts thereof or accessories therefor
40Wall-mounted casings; Parts thereof or accessories therefor
H01H 73/02 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
73Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
02Details
H02H 3/087 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
08responsive to excess current
087for dc applications
H02J 1/00 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
1Circuit arrangements for dc mains or dc distribution networks
CPC
H01H 71/123
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
71Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
10Operating or release mechanisms
12Automatic release mechanisms with or without manual release
123using a solid-state trip unit
H02H 3/087
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection
08responsive to excess current
087for dc applications
H02H 3/10
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection
08responsive to excess current
10additionally responsive to some other abnormal electrical conditions
H02H 7/26
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
7Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
26Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
H02J 1/06
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
1Circuit arrangements for dc mains or dc distribution networks
06Two-wire systems
Applicants
  • パナソニック電工株式会社 PANASONIC ELECTRIC WORKS CO., LTD. [JP]/[JP] (AllExceptUS)
  • 忠澤 孝明 CYUZAWA, Takaaki [JP]/[JP] (UsOnly)
  • 小新 博昭 KOSHIN, Hiroaki [JP]/[JP] (UsOnly)
Inventors
  • 忠澤 孝明 CYUZAWA, Takaaki
  • 小新 博昭 KOSHIN, Hiroaki
Agents
  • 西川 惠清 NISHIKAWA, Yoshikiyo
Priority Data
2009-14896223.06.2009JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) APPARATUS FOR PROTECTING DIRECT CURRENT BRANCH CIRCUIT
(FR) APPAREIL DE PROTECTION D'UN CIRCUIT DE DÉRIVATION EN COURANT CONTINU
(JA) 直流用分岐回路保護装置
Abstract
(EN)
In an alternating current distribution board, circuit breakers (5) and a controller (6) are housed as internal devices, wherein: each of the respective circuit breakers (5) is provided for a corresponding one of branch lines into which master wiring for a direct current power supply branches; and the controller (6) controls opening and closing of the respective circuit breakers (5). Each of the circuit breakers (5) comprises: power supply side connection terminals (t1 and t2) connected to the master wiring; load side connection terminals (t3 and t4) to which wiring on the load side is connected; a semiconductor switching element (57) provided in the middle of an electrical path connecting the power supply side connection terminals (t1 and t2) to the load side connection terminals (t3 and t4); a current detecting resistance (56), which detects a current flowing in the electrical path; and an arithmetic circuit (60), which opens and closes the semiconductor switching element (57) in accordance with opening and closing control signals inputted from the controller (6), and which forcibly closes the semiconductor switching element (57) when a current value obtained based on a voltage across the current detecting resistance (56) exceeds a set current.
(FR)
L'invention porte sur un tableau de distribution de courant alternatif, dans lequel des disjoncteurs (5) et un dispositif de commande (6) sont reçus en tant que dispositifs internes. Chacun des disjoncteurs respectifs (5) est utilisé pour l'une correspondante des lignes de dérivation dans lesquelles un câblage maître pour une alimentation électrique en courant continu se ramifie ; et le dispositif de commande (6) commande l'ouverture et la fermeture des disjoncteurs respectifs (5). Chacun des disjoncteurs (5) comprend : des bornes de connexion côté alimentation électrique (t1 et t2) connectées au câblage maître ; des bornes de connexion côté charge (t3 et t4) auxquelles est connecté un câblage côté charge ; un élément interrupteur à semi-conducteur (57) installé au milieu d'un chemin électrique connectant les bornes de connexion côté alimentation électrique (t1 et t2) aux bornes de connexion côté charge (t3 et t4) ; une résistance de détection de courant (56), qui détecte un courant circulant dans le chemin électrique ; et un circuit arithmétique (60), qui ouvre et ferme l'élément interrupteur à semi-conducteurs (57) conformément à des signaux de commande d'ouverture et de fermeture appliqués par le dispositif de commande (6), et qui force l'élément interrupteur à semi-conducteurs (57) à se fermer lorsqu'une valeur de courant obtenue sur la base d'une tension aux bornes de la résistance de détection de courant (56) dépasse un courant réglé.
(JA)
 直流用の分電盤には、直流電源の主幹配線から分岐される分岐線毎に設けられた回路遮断器5と、回路遮断器5の開閉を制御するコントローラ6とが、内器として収納されている。回路遮断器5は、主幹配線に接続される電源側接続端子t1,t2と、負荷側の配線が接続される負荷側接続端子t3,t4と、電源側接続端子t1,t2と負荷側接続端子t3,t4の間を接続する電路の途中に設けられた半導体スイッチ素子57と、電路に流れる電流を検出する電流検出抵抗56と、コントローラ6から入力される開閉制御信号に応じて半導体スイッチ素子57を開閉させるとともに、電流検出抵抗56の両端電圧から求めた電流値が設定電流を超えると半導体スイッチ素子57を強制開極させる演算回路60を備えている。
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