IT1225531B - Indicatoreelettronico di senso ciclico delle fasi per sistemi elettrici trifasi - Google Patents
Indicatoreelettronico di senso ciclico delle fasi per sistemi elettrici trifasiInfo
- Publication number
- IT1225531B IT1225531B IT8040417A IT4041780A IT1225531B IT 1225531 B IT1225531 B IT 1225531B IT 8040417 A IT8040417 A IT 8040417A IT 4041780 A IT4041780 A IT 4041780A IT 1225531 B IT1225531 B IT 1225531B
- Authority
- IT
- Italy
- Prior art keywords
- phases
- phase electric
- electric systems
- electronic cycle
- sense indicator
- Prior art date
Links
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
- G01R29/18—Indicating phase sequence; Indicating synchronism
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Measurement Of Current Or Voltage (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT8040417A IT1225531B (it) | 1980-04-11 | 1980-04-11 | Indicatoreelettronico di senso ciclico delle fasi per sistemi elettrici trifasi |
| EP81830049A EP0038307A1 (en) | 1980-04-11 | 1981-03-27 | Electronic phase sequence indicator for three-phase electric systems |
| US06/253,156 US4427939A (en) | 1980-04-11 | 1981-04-10 | Electronic phase sequence indicator for three-phase electric systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT8040417A IT1225531B (it) | 1980-04-11 | 1980-04-11 | Indicatoreelettronico di senso ciclico delle fasi per sistemi elettrici trifasi |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8040417A0 IT8040417A0 (it) | 1980-04-11 |
| IT1225531B true IT1225531B (it) | 1990-11-22 |
Family
ID=11249316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT8040417A IT1225531B (it) | 1980-04-11 | 1980-04-11 | Indicatoreelettronico di senso ciclico delle fasi per sistemi elettrici trifasi |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4427939A (it) |
| EP (1) | EP0038307A1 (it) |
| IT (1) | IT1225531B (it) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6044577A (en) * | 1998-09-28 | 2000-04-04 | Breeze Technology | Self-ventilating footwear |
| US20100148319A1 (en) * | 2008-11-13 | 2010-06-17 | Solexel, Inc. | Substrates for High-Efficiency Thin-Film Solar Cells Based on Crystalline Templates |
| CN104502736B (zh) * | 2015-01-09 | 2017-06-23 | 珠海派诺科技股份有限公司 | 一种在线式相序自适应方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2583798A (en) | 1949-11-14 | 1952-01-29 | Gen Electric | Power factor and phase rotation hook on meter |
| DE868178C (de) * | 1951-09-04 | 1953-02-23 | Gossen & Co G M B H P | Drehfeldrichtungsanzeiger |
| AT182446B (de) * | 1951-12-07 | 1955-06-25 | Licentia Gmbh | Ferrodynamisches Meßwerk für Leistungsmeßgeräte |
| DE1037585B (de) * | 1957-02-21 | 1958-08-28 | Licentia Gmbh | Leistungsfaktormesser |
| NL273111A (it) | 1961-01-03 | |||
| US3555417A (en) * | 1968-09-23 | 1971-01-12 | Benedict S Mitchell Sr | Apparatus for indicating phase sequence |
| US3584299A (en) | 1969-07-11 | 1971-06-08 | Sun Oil Co | Hook-on power factor, volt and ampere meter |
-
1980
- 1980-04-11 IT IT8040417A patent/IT1225531B/it active
-
1981
- 1981-03-27 EP EP81830049A patent/EP0038307A1/en not_active Withdrawn
- 1981-04-10 US US06/253,156 patent/US4427939A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0038307A1 (en) | 1981-10-21 |
| IT8040417A0 (it) | 1980-04-11 |
| US4427939A (en) | 1984-01-24 |
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