JP7260932B2 - 高速アークサプレッサ - Google Patents
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- H—ELECTRICITY
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- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/541—Contacts shunted by semiconductor devices
- H01H9/542—Contacts shunted by static switch means
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
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- G—PHYSICS
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- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
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- H01R13/7036—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part the switch being in series with coupling part, e.g. dead coupling, explosion proof coupling
- H01R13/7038—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part the switch being in series with coupling part, e.g. dead coupling, explosion proof coupling making use of a remote controlled switch, e.g. relais, solid state switch activated by the engagement of the coupling parts
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- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
- H01R24/30—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable with additional earth or shield contacts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
- H02H1/0015—Using arc detectors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency 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
- H02H7/22—Emergency 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 for distribution gear, e.g. bus-bar systems; for switching devices
- H02H7/222—Emergency 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 for distribution gear, e.g. bus-bar systems; for switching devices for switches
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/08—Limitation or suppression of earth fault currents, e.g. Petersen coil
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- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/541—Contacts shunted by semiconductor devices
- H01H9/542—Contacts shunted by static switch means
- H01H2009/543—Contacts shunted by static switch means third parallel branch comprising an energy absorber, e.g. MOV, PTC, Zener
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- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H2047/008—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current with a drop in current upon closure of armature or change of inductance
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- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/0241—Structural association of a fuse and another component or apparatus
- H01H2085/0275—Structural association with a printed circuit board
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- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/0241—Structural association of a fuse and another component or apparatus
- H01H2085/0283—Structural association with a semiconductor device
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- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/021—Bases; Casings; Covers structurally combining a relay and an electronic component, e.g. varistor, RC circuit
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- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
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- Computer Security & Cryptography (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
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- Connector Housings Or Holding Contact Members (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Description
アークサプレッサは、接点分離検出器を利用して、接点上の電圧の突然の変化に基づいて、スライド接点の分離および/またはスライド接点の閉鎖を検出することができる。接点分離検出器は、遷移期間中に電流が接点をバイパスできるようにするために、接点バイパス回路を開く場合がある。しかしながら、遷移期間は、単純で効率的な電圧遷移を含まない場合があり、多くの場合において単純で効率的な電圧遷移を含まない。むしろ、電気接点が開閉するときに一連の電圧バウンスが発生し、小さなアークまたは「アークレット」が生じる可能性がある。これらのアークレットは、一次アークが抑制されている場合であっても、接点を損傷する可能性がある。
各種実施形態の説明は、本質的に単なる例示であるため、本明細書の例および詳細な説明の要旨から逸脱しない改変は、本開示の範囲内にあることが意図されている。そのような改変は、本開示の精神および範囲からの逸脱と見なされるべきではない。
例4において、例1乃至3のうち1つ以上の主題は、第1および第2の高速スイッチが絶縁ゲート型バイポーラトランジスタ(IGBT)であることを含む。
例10では、例1乃至9のうち1つ以上の主題は、アーク点火検出回路が、アークの点火を示すパワーコンタクタ上の電圧の変化または電流の変化の少なくとも1つを検出するように構成されることを含む。
例13において、例1乃至12のうち1つ以上の主題は、第1および第2の位相固有アークサプレッサのそれぞれがアーク消弧要素を含み、第1の位相固有アークサプレッサのアーク消弧要素は第1の高速スイッチを備え、第2の位相固有アークサプレッサの消弧要素は第2の高速スイッチを備えることを含む。
例19において、例15乃至18のうち1つ以上の主題は、第1および第2の位相固有アークサプレッサのそれぞれが、アークを最初に検出してから所定の時間、第1および第2の位相固有アークサプレッサのうちの関連する1つの動作を禁止するように構成されたトリガーロックを備えることを含む。
例21は、処理回路によって実行されると、処理回路に例1乃至20のいずれかを実施するための動作を実行させる命令を含む、少なくとも1つの機械可読媒体である。
例23は、例1乃至20のいずれかを実施するためのシステムである。
例24は、例1乃至20のいずれかを実施するための方法である。
Claims (12)
- 交流(AC)電源に接続されたパワーコンタクタの両端のアーク放電を抑制するように構成された高速アークサプレッサであって、
正の領域内にある前記パワーコンタクタの接点間のアーク放電を抑制するように構成された第1の位相固有アークサプレッサであって、
前記第1の位相固有アークサプレッサの動作を有効化または無効化するように構成された第1の高速スイッチと、
前記第1の高速スイッチに接続された第1のドライバであって、前記接点からの入力信号が正の領域内にある場合に、前記第1の高速スイッチによって前記第1の位相固有アークサプレッサの動作を有効化し、前記接点からの前記入力信号が負の領域内にある場合に、前記第1の高速スイッチによって前記第1の位相固有アークサプレッサの動作を無効化するように構成される、第1のドライバと、を備える第1の位相固有アークサプレッサと、
負の領域内にある前記接点間のアーク放電を抑制するように構成された第2の位相固有アークサプレッサであって、
前記第2の位相固有アークサプレッサの動作を有効化または無効化するように構成された第2の高速スイッチと、
前記第2の高速スイッチに接続された第2のドライバであって、前記接点からの入力信号が正の領域内にある場合に、前記第2の高速スイッチによって前記第2の位相固有アークサプレッサの動作を無効化し、前記接点からの前記入力信号が負の領域内にある場合に、前記第2の高速スイッチによって前記第2の位相固有アークサプレッサの動作を有効化するように構成される、第2のドライバと、を備える第2の位相固有アークサプレッサと、を備え、
前記第1および前記第2の高速スイッチが、10マイクロ秒以内で前記第1および前記第2の位相固有アークサプレッサを有効動作と無効動作との間で切り替えるように構成され、
前記第1および第2の高速スイッチが絶縁ゲートバイポーラトランジスタ(IGBT)であり、
前記第1および前記第2の位相固有アークサプレッサのそれぞれがさらに、
アーク点火検出回路と、
トリガーロック回路と、
アークバーンメモリと、を備える、高速アークサプレッサ。 - 前記第1および前記第2の位相固有アークサプレッサのそれぞれについて、前記アーク点火検出回路が、前記パワーコンタクタの両端に接続され、前記アークバーンメモリは、前記アーク点火検出回路と前記第1および前記第2のドライバとの間にそれぞれ接続され、前記トリガーロック回路は、前記アーク点火検出回路の間に接続される、請求項1に記載の高速アークサプレッサ。
- 前記トリガーロック回路が、所定の時間の間、前記第1および前記第2の位相固有アークサプレッサのうちの関連する1つの動作を禁止するように構成される、請求項2に記載の高速アークサプレッサ。
- 前記アークバーンメモリが、前記パワーコンタクタを横切るアーク燃焼の検出の表示を関連するドライバに出力するように構成される、請求項3に記載の高速アークサプレッサ。
- 前記アークバーンメモリが1ビットのフリップフロップを含む、請求項4に記載の高速アークサプレッサ。
- 前記アーク点火検出回路が、アークの点火を示す前記パワーコンタクタ上の電圧の変化または電流の変化の少なくとも1つを検出するように構成される、請求項4に記載の高速アークサプレッサ。
- 前記パワーコンタクタ上および前記パワーコンタクタと前記アーク点火検出回路との間に接続された電力接点インターフェースを含む、請求項6に記載の高速アークサプレッサ。
- 前記電力接点インターフェースが過電圧保護回路および過電流保護回路を備える、請求項7に記載の高速アークサプレッサ。
- 前記第1および前記第2の位相固有アークサプレッサのそれぞれがアーク消弧要素を含み、前記第1の位相固有アークサプレッサのアーク消弧要素は前記第1の高速スイッチを備え、前記第2の位相固有アークサプレッサのアーク消弧要素は前記第2の高速スイッチを含む、請求項7に記載の高速アークサプレッサ。
- 前記第1および前記第2の位相固有のアークサプレッサのうちの関連する1つのアークバーンメモリが前記電力接点を横切るアークの存在の表示を記憶すると、前記第1および前記第2の高速スイッチのうちの1つが、前記電力接点を横切って短絡するように構成される、請求項9に記載の高速アークサプレッサ。
- 高速アークサプレッサの作動方法であって、
パワーコンタクタからの交流(AC)信号が正の領域内にある場合に、前記パワーコンタクタの接点間のアーク放電を抑制するべく前記高速アークサプレッサの第1の位相固有アークサプレッサを有効化することと、
前記信号が正の領域内にある場合に、前記接点間のアーク放電を抑制するべく前記高速アークサプレッサの第2の位相固有アークサプレッサを無効化することと、
前記信号が負の領域内に横切ると、
前記接点間のアーク放電を抑制するために、第1の位相固有のアークサプレッサの動作を無効化するように、前記第1の位相固有のアークサプレッサの第1の高速スイッチを切り替えることと、
前記接点間のアーク放電を抑制するために、第2の位相固有のアークサプレッサの動作を有効化するように構成された前記第2の位相固有のアークサプレッサの第2の高速スイッチを切り替えることと、を含み、
前記第1および前記第2の高速スイッチが、10マイクロ秒以内で前記第1および前記第2の位相固有アークサプレッサを有効動作と無効動作との間で切り替えるように構成され、
前記第1の位相固有アークサプレッサが第1のドライバを含み、前記第2の位相固有アークサプレッサが第2のドライバを含み、前記第1および前記第2の高速スイッチを切り替えることは、前記第1および前記第2の高速スイッチをそれぞれ第1および第2のドライバで駆動することを含み、
前記第1および第2の高速スイッチが絶縁ゲートバイポーラトランジスタ(IGBT)であり、
前記第1および前記第2の位相固有アークサプレッサのそれぞれが、アークを最初に検出してから所定の時間、前記第1および前記第2の位相固有アークサプレッサのうちの関連する1つの動作を禁止するように構成されたトリガーロックを備える、方法。 - 前記所定の時間は300ミリ秒以下である、請求項11に記載の方法。
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