CN1217199C - 用于多个电动机的低成本功率测量装置 - Google Patents
用于多个电动机的低成本功率测量装置 Download PDFInfo
- Publication number
- CN1217199C CN1217199C CN021030782A CN02103078A CN1217199C CN 1217199 C CN1217199 C CN 1217199C CN 021030782 A CN021030782 A CN 021030782A CN 02103078 A CN02103078 A CN 02103078A CN 1217199 C CN1217199 C CN 1217199C
- Authority
- CN
- China
- Prior art keywords
- voltage
- phase shift
- measuring apparatus
- current
- phasing
- 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 - Fee Related
Links
- 230000010363 phase shift Effects 0.000 claims description 18
- 238000005259 measurement Methods 0.000 claims description 12
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/20—Measuring number of turns; Measuring transformation ratio or coupling factor of windings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Multiple Motors (AREA)
- Control Of Electric Motors In General (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI2001A000331 | 2001-02-16 | ||
| IT2001MI000331A ITMI20010331A1 (it) | 2001-02-16 | 2001-02-16 | Dispositivo per la misura di potenza per una pluralita' di motori avente costo ridotto |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1375701A CN1375701A (zh) | 2002-10-23 |
| CN1217199C true CN1217199C (zh) | 2005-08-31 |
Family
ID=11446924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN021030782A Expired - Fee Related CN1217199C (zh) | 2001-02-16 | 2002-02-08 | 用于多个电动机的低成本功率测量装置 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6703824B2 (enExample) |
| EP (1) | EP1235075A3 (enExample) |
| JP (1) | JP2002311067A (enExample) |
| KR (1) | KR20020067420A (enExample) |
| CN (1) | CN1217199C (enExample) |
| IT (1) | ITMI20010331A1 (enExample) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI260669B (en) * | 2005-07-26 | 2006-08-21 | Ind Tech Res Inst | Field emission light-emitting device |
| US8164298B2 (en) * | 2009-03-26 | 2012-04-24 | GM Global Technology Operations LLC | System and method for detecting loss of isolation while an AC motor is operating |
| KR101251794B1 (ko) * | 2011-09-30 | 2013-04-08 | 삼성전기주식회사 | 전력 측정 시스템 |
| US10082528B2 (en) * | 2015-05-13 | 2018-09-25 | Mediatek Inc. | Power detector |
| TWI634748B (zh) | 2017-12-05 | 2018-09-01 | 財團法人工業技術研究院 | 量測系統及其鎖相迴路暨量測方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1099456B (it) * | 1978-09-08 | 1985-09-18 | Cgs Apparecch | Strumento indicatore per misure di potenza elettrica provvisto di convertitore statico di misura |
| DE3151904C2 (de) * | 1981-12-30 | 1985-12-12 | Uranit GmbH, 5170 Jülich | Verfahren zum Optimieren der Leistungsaufnahme einer Vielzahl parallelgeschalteter Hysteresemotoren |
| US4989155A (en) * | 1986-08-14 | 1991-01-29 | Gte Valenite Corporation | Intelligent power monitor |
| US4896106A (en) * | 1987-09-21 | 1990-01-23 | Landis & Gyr Metering, Inc. | Watthour meter for wye connected systems |
| US5017860A (en) * | 1988-12-02 | 1991-05-21 | General Electric Company | Electronic meter digital phase compensation |
| DE19735022B4 (de) * | 1997-08-13 | 2008-09-04 | Bucyrus Dbt Europe Gmbh | Verfahren zur Ermittlung der Wirkleistung von Asynchron-Elektromotoren |
-
2001
- 2001-02-16 IT IT2001MI000331A patent/ITMI20010331A1/it unknown
-
2002
- 2002-01-16 EP EP02000295A patent/EP1235075A3/en not_active Withdrawn
- 2002-01-22 US US10/051,100 patent/US6703824B2/en not_active Expired - Fee Related
- 2002-01-25 KR KR1020020004409A patent/KR20020067420A/ko not_active Withdrawn
- 2002-02-08 CN CN021030782A patent/CN1217199C/zh not_active Expired - Fee Related
- 2002-02-15 JP JP2002038429A patent/JP2002311067A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002311067A (ja) | 2002-10-23 |
| ITMI20010331A1 (it) | 2002-08-16 |
| US20020113604A1 (en) | 2002-08-22 |
| EP1235075A3 (en) | 2003-09-03 |
| KR20020067420A (ko) | 2002-08-22 |
| CN1375701A (zh) | 2002-10-23 |
| EP1235075A2 (en) | 2002-08-28 |
| US6703824B2 (en) | 2004-03-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |