JP7370666B2 - 放電検出システム - Google Patents
放電検出システム Download PDFInfo
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- JP7370666B2 JP7370666B2 JP2019199501A JP2019199501A JP7370666B2 JP 7370666 B2 JP7370666 B2 JP 7370666B2 JP 2019199501 A JP2019199501 A JP 2019199501A JP 2019199501 A JP2019199501 A JP 2019199501A JP 7370666 B2 JP7370666 B2 JP 7370666B2
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- Prior art keywords
- discharge event
- current
- discharge
- pass filter
- determination unit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0046—Arrangements for measuring currents or voltages or for indicating presence or sign thereof characterised by a specific application or detail not covered by any other subgroup of G01R19/00
- G01R19/0053—Noise discrimination; Analog sampling; Measuring transients
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16585—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 for individual pulses, ripple or noise and other applications where timing or duration is of importance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01R31/3277—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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
- H02H1/0015—Using arc detectors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/50—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to the appearance of abnormal wave forms, e.g. ac in dc installations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/027—Details with automatic disconnection after a predetermined time
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing Relating To Insulation (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
12 ハイパスフィルタ
13 判定部
14 開閉部
21 第1回路
22 第2回路
51 配線経路
Claims (3)
- 配線経路に流れる電流を検出する電流検出部と、
放電事象により重畳された高周波帯域のノイズの検出を行うために用いられるハイパスフィルタと、
ハイパスフィルタを通過した高周波ノイズの出力から放電事象発生を判定した場合に、配線経路に流れる電流の放電事象発生時の増減を検出して、放電事象の要因を判定する判定部と、
判定部から送られる遮断信号により配線経路を開くように動作する開閉部と、
を備え、
電流検出部で検出した放電電流の大きさによって、放電事象発生を判定してから開閉部に遮断信号を送るまでの時間を変化させる放電検出システム。 - 配線経路に流れる電流を検出する電流検出部と、
放電事象により重畳された高周波帯域のノイズの検出を行うために用いられるハイパスフィルタと、
ハイパスフィルタを通過した高周波ノイズの出力から放電事象発生を判定した場合に、配線経路に流れる電流の放電事象発生時の増減を検出して、放電事象の要因を判定する判定部と、
を備え、
判定部は、放電事象発生時の電流が増大した場合には、異極間放電事象が生じたと判定し、放電事象発生時の電流が減少した場合には、同極間放電事象が生じたと判定する放電検出システム。 - ハイパスフィルタを接続し高周波帯域の出力を判定部に入力させる第1回路と、電流検出部の出力を直接判定部に入力させる第2回路とを備え、
判定部は、第1回路からの入力により放電事象の有無を特定し、第2回路からの入力により電流の増減を特定する請求項1又は2に記載の放電検出システム。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019199501A JP7370666B2 (ja) | 2019-11-01 | 2019-11-01 | 放電検出システム |
US17/773,155 US20220365114A1 (en) | 2019-11-01 | 2020-10-30 | Electrical Discharge Detection System |
PCT/JP2020/040790 WO2021085594A1 (ja) | 2019-11-01 | 2020-10-30 | 放電検出システム |
EP20881213.1A EP4053571A4 (en) | 2019-11-01 | 2020-10-30 | ELECTRIC SHOCK DETECTION SYSTEM |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019199501A JP7370666B2 (ja) | 2019-11-01 | 2019-11-01 | 放電検出システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021071426A JP2021071426A (ja) | 2021-05-06 |
JP7370666B2 true JP7370666B2 (ja) | 2023-10-30 |
Family
ID=75712942
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019199501A Active JP7370666B2 (ja) | 2019-11-01 | 2019-11-01 | 放電検出システム |
Country Status (4)
Country | Link |
---|---|
US (1) | US20220365114A1 (ja) |
EP (1) | EP4053571A4 (ja) |
JP (1) | JP7370666B2 (ja) |
WO (1) | WO2021085594A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018185223A (ja) | 2017-04-26 | 2018-11-22 | 株式会社日立パワーソリューションズ | 部分放電計測システム及び部分放電計測方法 |
WO2019198791A1 (ja) | 2018-04-13 | 2019-10-17 | 日東工業株式会社 | 分電盤 |
JP2019184479A (ja) | 2018-04-13 | 2019-10-24 | 日東工業株式会社 | 放電事故検出構造 |
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JP2001242212A (ja) * | 2000-03-02 | 2001-09-07 | Mitsubishi Electric Corp | ガス絶縁電気機器の部分放電の種類判定方法および装置 |
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KR101993746B1 (ko) * | 2012-09-10 | 2019-09-30 | 삼성전자주식회사 | 아크 결함 검출 장치, 그를 가지는 전기기기 및 그 제어 방법 |
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-
2019
- 2019-11-01 JP JP2019199501A patent/JP7370666B2/ja active Active
-
2020
- 2020-10-30 WO PCT/JP2020/040790 patent/WO2021085594A1/ja unknown
- 2020-10-30 EP EP20881213.1A patent/EP4053571A4/en active Pending
- 2020-10-30 US US17/773,155 patent/US20220365114A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018185223A (ja) | 2017-04-26 | 2018-11-22 | 株式会社日立パワーソリューションズ | 部分放電計測システム及び部分放電計測方法 |
WO2019198791A1 (ja) | 2018-04-13 | 2019-10-17 | 日東工業株式会社 | 分電盤 |
JP2019184479A (ja) | 2018-04-13 | 2019-10-24 | 日東工業株式会社 | 放電事故検出構造 |
Also Published As
Publication number | Publication date |
---|---|
WO2021085594A1 (ja) | 2021-05-06 |
EP4053571A4 (en) | 2023-11-15 |
JP2021071426A (ja) | 2021-05-06 |
US20220365114A1 (en) | 2022-11-17 |
EP4053571A1 (en) | 2022-09-07 |
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