DE69803678D1 - System zur messung eines wechselstroms - Google Patents
System zur messung eines wechselstromsInfo
- Publication number
- DE69803678D1 DE69803678D1 DE69803678T DE69803678T DE69803678D1 DE 69803678 D1 DE69803678 D1 DE 69803678D1 DE 69803678 T DE69803678 T DE 69803678T DE 69803678 T DE69803678 T DE 69803678T DE 69803678 D1 DE69803678 D1 DE 69803678D1
- Authority
- DE
- Germany
- Prior art keywords
- measuring system
- measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT97MI001740 IT1293758B1 (it) | 1997-07-23 | 1997-07-23 | Sistema di misura della resistenza equivalente serie in corrente alternata di un conduttore |
US5381097P | 1997-07-25 | 1997-07-25 | |
PCT/EP1998/003719 WO1999005533A2 (en) | 1997-07-23 | 1998-06-18 | System for measuring the alternating current equivalent series resistance of a conductor |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69803678D1 true DE69803678D1 (de) | 2002-03-14 |
DE69803678T2 DE69803678T2 (de) | 2002-10-17 |
Family
ID=26331527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69803678T Expired - Lifetime DE69803678T2 (de) | 1997-07-23 | 1998-06-18 | System zur messung eines wechselstroms |
Country Status (9)
Country | Link |
---|---|
US (1) | US6512383B1 (de) |
EP (1) | EP0998677B1 (de) |
JP (1) | JP4119605B2 (de) |
AU (1) | AU744657B2 (de) |
CA (1) | CA2297066C (de) |
DE (1) | DE69803678T2 (de) |
ES (1) | ES2172164T3 (de) |
NZ (1) | NZ502167A (de) |
WO (1) | WO1999005533A2 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006050766A1 (de) * | 2006-10-27 | 2008-04-30 | Helmut-Schmidt-Universität Hamburg | Vorrichtung und Verfahren zur Messung der Netzimpedanz auf der Mittelspannungsebene |
TWI334931B (en) * | 2008-07-17 | 2010-12-21 | Cyrustek Co | Intelligent multi-meter with automatic function selection |
US9243877B2 (en) * | 2010-12-20 | 2016-01-26 | Dyno Nobel Inc. | Detonator ignition protection and detection circuit |
CN113884772B (zh) * | 2021-10-27 | 2023-08-22 | 江苏上上电缆集团有限公司 | 一种基于比例变压器的大截面电缆导体交流等效电阻测试系统及方法 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1067924B (de) * | 1939-10-29 | Siemens S. Halske Aktiengesellschaft, Berlin und München | Gerät zur Bestimmung der Kurzschlußstromstärke in elektrischen Leitungsnetzen | |
DE1073621B (de) * | 1960-01-21 | Siemens & Halske Aktiengesellschaft, Berlin und München | Verfahren zur Messung des Netzinnenwiderstandes | |
US4175253A (en) * | 1978-02-22 | 1979-11-20 | Teradyne, Inc. | Analyzing electrical circuit boards |
US4335349A (en) * | 1980-06-05 | 1982-06-15 | John Fluke Mfg. Co., Inc. | Simulated ohms generation method and apparatus for calibrating resistance type measuring instruments |
US4584525A (en) * | 1983-04-18 | 1986-04-22 | General Electric Company | Current-shunt system for known conductors |
EP0175257A2 (de) * | 1984-09-21 | 1986-03-26 | INTERATOM Gesellschaft mit beschränkter Haftung | Verfahren zur Strukturüberwachung durch Messen elektrischer Grössen und Vorrichtung sowie Messkopf zur Durchfürung der Verfahrens |
US4645906A (en) * | 1985-03-04 | 1987-02-24 | Thermon Manufacturing Company | Reduced resistance skin effect heat generating system |
US4808914A (en) * | 1985-10-17 | 1989-02-28 | Harris Corporation | Resistance measuring ohms converter circuit employing a constant current source |
US4743846A (en) * | 1987-03-18 | 1988-05-10 | Hydro-Quebec | Rectangular shunt with measurement compensation system |
US4797604A (en) * | 1987-12-09 | 1989-01-10 | Etcon Corporation | Wire length meter suppling current to a wire from which a signal representative of length is derived |
US5210490A (en) * | 1989-01-11 | 1993-05-11 | Nartron Corporation | Linear position sensor having coaxial or parallel primary and secondary windings |
US5365179A (en) * | 1992-03-19 | 1994-11-15 | Electronic Development, Inc. | Apparatus and method for measuring ground impedance |
US5227720A (en) * | 1992-04-02 | 1993-07-13 | General Electric Company | Apparatus and method using a bifilar coil with an integrated loop/switch for resistance measurement of superconductors |
US5469070A (en) * | 1992-10-16 | 1995-11-21 | Rosemount Analytical Inc. | Circuit for measuring source resistance of a sensor |
JPH0720172A (ja) * | 1993-06-30 | 1995-01-24 | Yokogawa Hewlett Packard Ltd | 回路定数・材料特性測定装置 |
US5481200A (en) * | 1993-09-15 | 1996-01-02 | Rosemont Inc. | Field transmitter built-in test equipment |
DE4331796A1 (de) * | 1993-09-18 | 1995-03-23 | Metrawatt Gmbh Gossen | Multimeter mit automatischer Meßfunktionseinstellung |
US6112531A (en) * | 1996-04-19 | 2000-09-05 | Kabushikikaisya, Yyl | Superconducting system |
US5691644A (en) * | 1996-05-10 | 1997-11-25 | Henkels & Mccoy | Neutral corrosion condition survey-mitigating induced voltage effects |
JP3809223B2 (ja) * | 1996-05-30 | 2006-08-16 | アジレント・テクノロジーズ・インク | インピーダンス測定装置 |
US5804979A (en) * | 1997-05-13 | 1998-09-08 | Fluke Corporation | Circuit for measuring in-circuit resistance and current |
-
1998
- 1998-06-18 NZ NZ502167A patent/NZ502167A/xx not_active IP Right Cessation
- 1998-06-18 WO PCT/EP1998/003719 patent/WO1999005533A2/en active IP Right Grant
- 1998-06-18 CA CA002297066A patent/CA2297066C/en not_active Expired - Fee Related
- 1998-06-18 AU AU83388/98A patent/AU744657B2/en not_active Ceased
- 1998-06-18 ES ES98933635T patent/ES2172164T3/es not_active Expired - Lifetime
- 1998-06-18 DE DE69803678T patent/DE69803678T2/de not_active Expired - Lifetime
- 1998-06-18 JP JP2000504466A patent/JP4119605B2/ja not_active Expired - Fee Related
- 1998-06-18 EP EP98933635A patent/EP0998677B1/de not_active Expired - Lifetime
-
2000
- 2000-01-21 US US09/488,832 patent/US6512383B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6512383B1 (en) | 2003-01-28 |
NZ502167A (en) | 2001-03-30 |
ES2172164T3 (es) | 2002-09-16 |
DE69803678T2 (de) | 2002-10-17 |
JP2003518606A (ja) | 2003-06-10 |
EP0998677B1 (de) | 2002-01-30 |
AU744657B2 (en) | 2002-02-28 |
WO1999005533A3 (en) | 2002-10-03 |
EP0998677A2 (de) | 2000-05-10 |
CA2297066A1 (en) | 1999-02-04 |
JP4119605B2 (ja) | 2008-07-16 |
WO1999005533A2 (en) | 1999-02-04 |
AU8338898A (en) | 1999-02-16 |
CA2297066C (en) | 2005-08-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: PRYSMIAN CAVI E SISTEMI ENERGIA S.R.L., MAILAN, IT |