Development of a Digital Protection Relay Corresponding with a Multi-range Current Transformer for High Voltage Equipments
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- Kanayama Tetsuya
- Meidensha Corporation
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- Kawasaki Yoshihiro
- Meidensha Corporation
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- Hosotani Koji
- Meidensha Corporation
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- Fujita Yoshito
- Meidensha Corporation
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- Okitsu Toshiyuki
- Meidensha Corporation
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- Shirasuna Hiroaki
- Meidensha Corporation
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- Ookawa Hisao
- Meidensha Corporation
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- Sumitani Kensaku
- Meidensha Corporation
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- Yamaguchi Hiroshi
- Meidensha Corporation
Bibliographic Information
- Other Title
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- 高圧設備用広帯域CTに対応したディジタルリレーの開発
- コウアツ セツビヨウコウタイイキ CT ニ タイオウ シタ ディジタル リレー ノ カイハツ
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Abstract
In the past, a current transformation ratio of a current transformer (CT) has been different for each facility corresponding with a rated current of a primary circuit in high voltage (6kV) equipments. By unifying specifications of a CT, there is no need to prepare a CT with various ratings corresponding with a capacity of a load facility, it becomes easier for consumers to modify facilities, and for manufacturers, it enables to standardize of a design and shorten a production period. Recently, it has been popular composition of a secondary circuit of a CT being connected with a digital protection relay bundled with protection and measurement functions not being connected with relays, meters and transducers separately. Because the composition enables to reduce a burden of a secondary circuit of a CT, reduction in size and weight of a CT is achieved and it also contributes to reduce a size of a cubicle and improve a mounting efficiency of a panel. We have developed a CT corresponding with a multi range input (a multi-range CT) and a digital protection relay utilizing its advantages which enable to standardize of a facility design and reduce a size of a cubicle, and report them in this paper.
Journal
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- IEEJ Transactions on Power and Energy
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IEEJ Transactions on Power and Energy 130 (1), 35-40, 2010
The Institute of Electrical Engineers of Japan
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Details 詳細情報について
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- CRID
- 1390282679577981824
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- NII Article ID
- 10026226293
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- NII Book ID
- AN10136334
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- ISSN
- 13488147
- 03854213
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- NDL BIB ID
- 10538472
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed