GB1601678A - Method for monitoring the run-up to speed of asynchronous motors and apparatus for the performance thereof - Google Patents
Method for monitoring the run-up to speed of asynchronous motors and apparatus for the performance thereof Download PDFInfo
- Publication number
- GB1601678A GB1601678A GB8338/78A GB833878A GB1601678A GB 1601678 A GB1601678 A GB 1601678A GB 8338/78 A GB8338/78 A GB 8338/78A GB 833878 A GB833878 A GB 833878A GB 1601678 A GB1601678 A GB 1601678A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- time
- delay
- current
- phase angle
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/0816—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors concerning the starting sequence, e.g. limiting the number of starts per time unit, monitoring speed during starting
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/093—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against increase beyond, or decrease below, a predetermined level of rotational speed
Landscapes
- Control Of Electric Motors In General (AREA)
- Motor And Converter Starters (AREA)
- Control Of Multiple Motors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH270177A CH615538A5 (US20110232667A1-20110929-C00004.png) | 1977-03-04 | 1977-03-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1601678A true GB1601678A (en) | 1981-11-04 |
Family
ID=4239647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8338/78A Expired GB1601678A (en) | 1977-03-04 | 1978-03-02 | Method for monitoring the run-up to speed of asynchronous motors and apparatus for the performance thereof |
Country Status (7)
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2128425A (en) * | 1982-10-08 | 1984-04-26 | Newelec Pretoria | Stall detection apparatus |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3754697A (en) * | 1970-09-10 | 1973-08-28 | Brunswick Corp | Apparatus for providing composite sheathed element |
US4361792A (en) * | 1980-05-06 | 1982-11-30 | Chesebrough-Pond's Inc. | Digital induction motor control system |
US4404511A (en) * | 1980-10-23 | 1983-09-13 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Motor power factor controller with a reduced voltage starter |
US4451823A (en) * | 1981-08-07 | 1984-05-29 | Dart Controls, Inc. | Overload sensing circuit for a motor |
US4409532A (en) * | 1981-11-06 | 1983-10-11 | General Electric Company | Start control arrangement for split phase induction motor |
FR2522895B1 (fr) * | 1982-03-03 | 1985-11-08 | Equip Elect Cie Continenta | Dispositif de protection contre le blocage des moteurs electriques |
JPS5967826A (ja) * | 1982-10-06 | 1984-04-17 | 株式会社椿本チエイン | 電動機械の過負荷・軽負荷保護装置 |
US4998097A (en) * | 1983-07-11 | 1991-03-05 | Square D Company | Mechanically operated pressure switch having solid state components |
US4864287A (en) * | 1983-07-11 | 1989-09-05 | Square D Company | Apparatus and method for calibrating a motor monitor by reading and storing a desired value of the power factor |
CH663863A5 (de) * | 1983-12-23 | 1988-01-15 | Bbc Brown Boveri & Cie | Anlaufschutz fuer eine asynchrone drehfeldmaschine. |
DE3426746C1 (de) * | 1984-07-20 | 1986-02-13 | Mannesmann AG, 4000 Düsseldorf | Hebezeug mit UEberlastsicherung |
AU569646B2 (en) * | 1984-12-18 | 1988-02-11 | Toshiba, Kabushiki Kaisha | Detecting critical rotation speed of an induction motor |
DE3635863A1 (de) * | 1986-10-22 | 1988-05-05 | Pilz Gmbh & Co | Schaltungsanordnung zur ueberwachung eines motorparameters |
US4873473A (en) * | 1988-01-28 | 1989-10-10 | Dart Controls, Inc. | Modular motor controller |
US5061884A (en) * | 1990-02-12 | 1991-10-29 | Kb Electronics, Inc. | Current limiting control circuit for D.C. motors with line dropout protection |
US5329223A (en) * | 1992-06-26 | 1994-07-12 | Green Technologies, Inc. | Ideal voltage controller for conserving energy in inductive loads |
US5444359A (en) * | 1992-06-26 | 1995-08-22 | Green Technologies, Inc. | Load sensitive variable voltage motor controller |
DE19843133C2 (de) | 1998-09-21 | 2001-03-15 | Siemens Ag | Verfahren zum Messen der Drehzahl einer Induktionsmaschine und zugehörige Einrichtung |
DE19911036C1 (de) * | 1999-03-12 | 2000-06-21 | Mannesmann Vdo Ag | Regler für Heizungs- und Klimageräte in Kraftfahrzeugen |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE47962C (de) * | W. Th. SMITH in Birmingham, Grafschaft JEFFERSON, Alabama, V. St. A | Geschütz-Blockverschlufs mit durch Schrauben bewirkter Dichtung | ||
US2992365A (en) * | 1955-03-24 | 1961-07-11 | Everett C Brill | Watt-sensing device |
FR1566188A (US20110232667A1-20110929-C00004.png) * | 1967-12-06 | 1969-05-09 | ||
CH575187A5 (US20110232667A1-20110929-C00004.png) * | 1974-02-14 | 1976-04-30 | Sulzer Ag | |
DE2416999C3 (de) * | 1974-04-08 | 1978-12-21 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Verfahren und Schaltungsanordnung zur Drehzahlmessung bei einem Antriebssystem |
-
1977
- 1977-03-04 CH CH270177A patent/CH615538A5/de not_active IP Right Cessation
- 1977-04-09 DE DE19772715935 patent/DE2715935A1/de not_active Ceased
-
1978
- 1978-02-10 US US05/876,630 patent/US4194145A/en not_active Expired - Lifetime
- 1978-03-01 DK DK93578A patent/DK93578A/da not_active Application Discontinuation
- 1978-03-02 NL NL7802290A patent/NL7802290A/xx not_active Application Discontinuation
- 1978-03-02 GB GB8338/78A patent/GB1601678A/en not_active Expired
- 1978-03-02 AT AT0149478A patent/AT363153B/de not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2128425A (en) * | 1982-10-08 | 1984-04-26 | Newelec Pretoria | Stall detection apparatus |
Also Published As
Publication number | Publication date |
---|---|
ATA149478A (de) | 1980-12-15 |
DK93578A (da) | 1978-09-05 |
DE2715935A1 (de) | 1978-09-07 |
NL7802290A (nl) | 1978-09-06 |
US4194145A (en) | 1980-03-18 |
CH615538A5 (US20110232667A1-20110929-C00004.png) | 1980-01-31 |
AT363153B (de) | 1981-07-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |