DE3038788C2 - - Google Patents
Info
- Publication number
- DE3038788C2 DE3038788C2 DE3038788A DE3038788A DE3038788C2 DE 3038788 C2 DE3038788 C2 DE 3038788C2 DE 3038788 A DE3038788 A DE 3038788A DE 3038788 A DE3038788 A DE 3038788A DE 3038788 C2 DE3038788 C2 DE 3038788C2
- Authority
- DE
- Germany
- Prior art keywords
- signal
- circuit
- signal representing
- motor
- motor current
- 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
Links
- 239000003990 capacitor Substances 0.000 description 5
- 230000010354 integration Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Multiple Motors (AREA)
- Protection Of Generators And Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8000672A SE417754B (sv) | 1980-01-29 | 1980-01-29 | Belastningsindikator for vexelstromsmotorer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3038788A1 DE3038788A1 (de) | 1981-07-30 |
| DE3038788C2 true DE3038788C2 (forum.php) | 1987-06-19 |
Family
ID=20340099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19803038788 Granted DE3038788A1 (de) | 1980-01-29 | 1980-10-14 | Belastungsanzeiger fuer wechselstrommotoren |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4333118A (forum.php) |
| JP (1) | JPS5716597A (forum.php) |
| CH (1) | CH655393B (forum.php) |
| DE (1) | DE3038788A1 (forum.php) |
| DK (1) | DK147444C (forum.php) |
| FI (1) | FI68471C (forum.php) |
| FR (1) | FR2474698B1 (forum.php) |
| GB (1) | GB2070355B (forum.php) |
| IT (1) | IT1135196B (forum.php) |
| NO (1) | NO157594C (forum.php) |
| SE (1) | SE417754B (forum.php) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5956896A (ja) * | 1982-09-24 | 1984-04-02 | Toshiba Corp | 交流電動機の制御装置 |
| JPH074080B2 (ja) * | 1984-04-13 | 1995-01-18 | 日立機電工業株式会社 | クレーン等巻上装置の速度制御装置 |
| US4563508A (en) * | 1984-05-18 | 1986-01-07 | Dart Industries, Inc. | Injection moldable aromatic polyesters compositions and method of preparation |
| US4879623A (en) * | 1985-12-02 | 1989-11-07 | Caterpillar Industrial Inc. | Voltage transients |
| US4713608A (en) * | 1986-03-06 | 1987-12-15 | Computer Power Systems Corporation | Apparatus for providing cost efficient power measurement |
| US4891975A (en) * | 1986-04-04 | 1990-01-09 | Movats Incorporated | Method and apparatus for remote monitoring of valves and valve operators |
| US4869102A (en) * | 1986-04-04 | 1989-09-26 | Movats Incorporated | Method and apparatus for remote monitoring of valves and valve operators |
| US5000040A (en) * | 1986-04-04 | 1991-03-19 | Movats Incorporated | Method and apparatus for remote monitoring of valves and valve operators |
| US4831873A (en) * | 1986-04-04 | 1989-05-23 | Movats Incorporated | Method and apparatus for remote monitoring of valves and valve operators |
| US4888996A (en) * | 1987-12-22 | 1989-12-26 | Movats Incorporated | DC motor operated valve remote monitoring system |
| US5005008A (en) * | 1989-04-20 | 1991-04-02 | Hewlett Packard Company | Method and apparatus for providing thermodynamic protection of a driver circuit used in an in-circuit tester |
| AT393912B (de) * | 1989-11-16 | 1992-01-10 | Elin Energieanwendung | Verfahren zur ermittlung des mechanischen drehmomentes |
| SE516155C2 (sv) | 1997-10-28 | 2001-11-26 | Emotron Ab | Belastningsvakt |
| US6501629B1 (en) | 2000-10-26 | 2002-12-31 | Tecumseh Products Company | Hermetic refrigeration compressor motor protector |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1135694A (fr) * | 1955-03-24 | 1957-05-02 | Procédé et appareil de mesure de puissance réelle | |
| US3579217A (en) * | 1968-06-10 | 1971-05-18 | Thomas Machinery Corp | Method and apparatus for detecting and indicating malfunction of a tableting machine |
| US3931559A (en) * | 1974-08-02 | 1976-01-06 | Delta-X Corporation | Malfunction detector circuit for the use with a pump-off control circuit |
| JPS5133451A (forum.php) * | 1974-09-13 | 1976-03-22 | Hitachi Ltd | |
| DD128743A1 (de) * | 1976-12-02 | 1977-12-07 | Dieter Zenkel | Schaltungsanordnung zum erfassen der mechanischen belastung eines drehstrommotors |
| US4100587A (en) * | 1976-12-28 | 1978-07-11 | General Electric Company | Circuit for detecting the flow of an excess of reverse power from a load to a power system |
| US4079313A (en) * | 1977-04-18 | 1978-03-14 | Allen-Bradley Company | Digital watts transducer |
| DE2844548A1 (de) * | 1978-10-12 | 1980-04-30 | Elfi Innovationer | Schaltungsanordnung zur anzeige des belastungszustandes eines wechselstrommotors |
| FR2470973A1 (fr) * | 1979-12-07 | 1981-06-12 | Telemecanique Electrique | Dispositif de determination du couple fourni par un moteur electrique asynchrone |
-
1980
- 1980-01-29 SE SE8000672A patent/SE417754B/sv not_active IP Right Cessation
- 1980-10-14 DE DE19803038788 patent/DE3038788A1/de active Granted
-
1981
- 1981-01-19 FI FI810144A patent/FI68471C/fi not_active IP Right Cessation
- 1981-01-26 US US06/228,553 patent/US4333118A/en not_active Expired - Lifetime
- 1981-01-27 NO NO810261A patent/NO157594C/no unknown
- 1981-01-27 IT IT19358/81A patent/IT1135196B/it active
- 1981-01-27 DK DK35881A patent/DK147444C/da not_active IP Right Cessation
- 1981-01-27 FR FR8101478A patent/FR2474698B1/fr not_active Expired
- 1981-01-27 CH CH50181A patent/CH655393B/de unknown
- 1981-01-29 JP JP1090481A patent/JPS5716597A/ja active Granted
- 1981-01-29 GB GB8102764A patent/GB2070355B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2474698B1 (fr) | 1985-06-28 |
| NO157594C (no) | 1988-04-13 |
| FR2474698A1 (fr) | 1981-07-31 |
| JPS5716597A (en) | 1982-01-28 |
| GB2070355A (en) | 1981-09-03 |
| DK147444B (da) | 1984-08-06 |
| DK35881A (da) | 1981-07-30 |
| NO810261L (no) | 1981-07-30 |
| FI810144L (fi) | 1981-07-30 |
| DK147444C (da) | 1985-02-18 |
| IT1135196B (it) | 1986-08-20 |
| GB2070355B (en) | 1983-11-30 |
| US4333118A (en) | 1982-06-01 |
| DE3038788A1 (de) | 1981-07-30 |
| SE417754B (sv) | 1981-04-06 |
| CH655393B (forum.php) | 1986-04-15 |
| NO157594B (no) | 1988-01-04 |
| FI68471C (fi) | 1985-09-10 |
| JPS6333398B2 (forum.php) | 1988-07-05 |
| IT8119358A0 (it) | 1981-01-27 |
| FI68471B (fi) | 1985-05-31 |
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|---|---|---|
| DE3038788C2 (forum.php) | ||
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: EMOTRON AB, HELSINGBORG, SE |