PROTECTIVE RELAY DEVICE

To provide a protective relay device capable of more appropriately storing data at the time of an accident and data at the time of an operation test by checking a change aspect of electricity quantity.SOLUTION: A protective relay device comprises: a storage unit having a first storage area and a sec...

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Bibliographic Details
Main Author KOIKE NOBUAKI
Format Patent
LanguageEnglish
Japanese
Published 17.10.2019
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Summary:To provide a protective relay device capable of more appropriately storing data at the time of an accident and data at the time of an operation test by checking a change aspect of electricity quantity.SOLUTION: A protective relay device comprises: a storage unit having a first storage area and a second storage area; a relay arithmetic unit for performing relay arithmetic using electricity quantity data input from an external apparatus and executing operation determination of the protective relay device; a determination unit for determining whether or not electricity quantity data is data at the time of operation for monitoring an electric power system or data at the time of an operation test of the protective relay device based on a change aspect of input electricity quantity data when it is determined that the protective relay device is caused to operate; and a storage controller for storing the electricity quantity data in the first storage area when the input electricity quantity data is data at the time of operation and storing the electricity quantity data in the second storage area when the input electricity quantity data is data at the time of the operation test.SELECTED DRAWING: Figure 2 【課題】電気量の変化態様を確認することにより、事故時のデータおよび動作試験時のデータをより適切に記憶することが可能な保護継電装置を提供する。【解決手段】保護継電装置は、第1記憶領域と第2記憶領域とを有する記憶部と、外部機器から入力される電気量データを用いてリレー演算を行ない、保護継電装置の動作判定を実行するリレー演算部と、保護継電装置を動作させると判定された場合に、入力された電気量データの変化態様に基づいて、当該電気量データが、電力系統の監視を行なう運用時でのデータなのか、保護継電装置の動作試験時でのデータなのかを判定する判定部と、入力された電気量データが運用時でのデータである場合には、当該電気量データを第1記憶領域に記憶し、入力された電気量データが動作試験時でのデータである場合には、当該電気量データを第2記憶領域に記憶する記憶制御部とを備える。【選択図】図2
Bibliography:Application Number: JP20180068281