PROTECTIVE RELAY, POWER DISTRIBUTION SYSTEM, AND SOFTWARE UPDATE METHOD PERFORMED IN PROTECTIVE RELAY

To update protection control software of a protective relay in a timely manner.SOLUTION: A protective relay 2_2 transmits an update start notification for protection control software to a protective relay 2_1. In response to receiving the update start notification from the protective relay 2_2, the...

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Bibliographische Detailangaben
Hauptverfasser:	HIGUCHI HIROSHI, YASUI KOHEI, TAKAGUCHI YUSUKE
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Zusammenfassung:	To update protection control software of a protective relay in a timely manner.SOLUTION: A protective relay 2_2 transmits an update start notification for protection control software to a protective relay 2_1. In response to receiving the update start notification from the protective relay 2_2, the protective relay 2_1 changes a setting value to correspond to an expanded protection section L12 combining protection sections L1 and L2, and transmits a change completion notification for the setting value to the protective relay 2_2. In response to receiving the change completion notification, the protective relay 2_2 stops execution of the protection control software and updates the protection control software.SELECTED DRAWING: Figure 6 【課題】保護継電装置の保護制御ソフトウェアの更新を適時に行う。【解決手段】保護継電装置２＿２は、保護制御ソフトウェアの更新開始通知を保護継電装置２＿１に送信する。保護継電装置２＿１は、保護継電装置２＿２からの更新開始通知の受信に応じて、保護区間Ｌ１と保護区間Ｌ２とを併せた拡大保護区間Ｌ１２に対応するように整定値を変更し、整定値の変更完了通知を保護継電装置２＿２に送信する。保護継電装置２＿２は、変更完了通知の受信に応じて、保護制御ソフトウェアの実行を停止して保護制御ソフトウェアを更新する。【選択図】図６