JP5295538B2 - トラッキング電流検出装置 - Google Patents
トラッキング電流検出装置 Download PDFInfo
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- JP5295538B2 JP5295538B2 JP2007248413A JP2007248413A JP5295538B2 JP 5295538 B2 JP5295538 B2 JP 5295538B2 JP 2007248413 A JP2007248413 A JP 2007248413A JP 2007248413 A JP2007248413 A JP 2007248413A JP 5295538 B2 JP5295538 B2 JP 5295538B2
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- parameter
- current
- value
- tracking
- waveform
- Prior art date
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- 238000004364 calculation method Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 12
- 230000007423 decrease Effects 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 238000007796 conventional method Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 239000012212 insulator Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
Images
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- Testing Relating To Insulation (AREA)
- Breakers (AREA)
Description
2・・・変流器
3・・・入力回路
4,10・・・絶対値回路
5・・・演算回路
6・・・演算回路
7・・・除算回路
8・・・ホールド回路
9・・・差分回路
11,12・・・積算回路
13・・・除算回路
14・・・判定回路
15・・・演算回路
Claims (4)
- 第一の区間毎に電流波形の歪みの様相を数値化した第一のパラメータを演算し,ひとつ前の第一の区間の第一のパラメータとの差を第一のパラメータの変化量とする一方,
前記第一のパラメータの変化量が単調増加若しくは単調減少する場合には該変化量を演算に用いず,第一の区間のN倍の第二の区間毎にN個の第一のパラメータの変化量の積算値とN個の第一のパラメータ自体の積算値の比を演算して第二のパラメータとし,第二のパラメータの値からトラッキングの発生を判定する手段を含むことを特徴とするトラッキング検出装置。 - 前記第一のパラメータは電流の波高率であることを特徴とする請求項1記載のトラッキング検出装置。
- 前記第一のパラメータは電流の最大値と平均値の比であることを特徴とする請求項1記載のトラッキング検出装置。
- 前記第一のパラメータは電流の波形率であることを特徴とする請求項1記載のトラッキング検出装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007248413A JP5295538B2 (ja) | 2007-09-26 | 2007-09-26 | トラッキング電流検出装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2007248413A JP5295538B2 (ja) | 2007-09-26 | 2007-09-26 | トラッキング電流検出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009079957A JP2009079957A (ja) | 2009-04-16 |
JP5295538B2 true JP5295538B2 (ja) | 2013-09-18 |
Family
ID=40654824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2007248413A Expired - Fee Related JP5295538B2 (ja) | 2007-09-26 | 2007-09-26 | トラッキング電流検出装置 |
Country Status (1)
Country | Link |
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JP (1) | JP5295538B2 (ja) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06250139A (ja) * | 1993-02-23 | 1994-09-09 | Casio Comput Co Ltd | 液晶表示パネルの検査方法 |
JP3235004B2 (ja) * | 1993-09-13 | 2001-12-04 | オムロン株式会社 | 保護継電器、試験器およびこれらを用いた試験システム |
JP2004219171A (ja) * | 2003-01-10 | 2004-08-05 | Matsushita Electric Works Ltd | 機器情報特定装置及び負荷機器特徴量検出装置 |
JP4856391B2 (ja) * | 2005-04-12 | 2012-01-18 | テンパール工業株式会社 | トラッキング電流検出装置 |
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2007
- 2007-09-26 JP JP2007248413A patent/JP5295538B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2009079957A (ja) | 2009-04-16 |
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