GB2161334B - Safety device for alternating current motors - Google Patents
Safety device for alternating current motorsInfo
- Publication number
- GB2161334B GB2161334B GB08506237A GB8506237A GB2161334B GB 2161334 B GB2161334 B GB 2161334B GB 08506237 A GB08506237 A GB 08506237A GB 8506237 A GB8506237 A GB 8506237A GB 2161334 B GB2161334 B GB 2161334B
- Authority
- GB
- United Kingdom
- Prior art keywords
- alternating current
- safety device
- current motors
- motors
- safety
- 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
- H02H7/0833—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 for electric motors with control arrangements
- H02H7/0844—Fail safe control, e.g. by comparing control signal and controlled current, isolating motor on commutation error
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843408790 DE3408790A1 (en) | 1984-03-10 | 1984-03-10 | FUSE ARRANGEMENT FOR AC MOTORS |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8506237D0 GB8506237D0 (en) | 1985-04-11 |
GB2161334A GB2161334A (en) | 1986-01-08 |
GB2161334B true GB2161334B (en) | 1987-10-14 |
Family
ID=6230084
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08506237A Expired GB2161334B (en) | 1984-03-10 | 1985-03-11 | Safety device for alternating current motors |
Country Status (4)
Country | Link |
---|---|
AT (1) | ATA69885A (en) |
DE (1) | DE3408790A1 (en) |
FR (1) | FR2561046A1 (en) |
GB (1) | GB2161334B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100424991C (en) * | 2004-09-27 | 2008-10-08 | 乐金电子(天津)电器有限公司 | Drive circuit for rotating resonance type motor |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1097014B (en) * | 1959-10-03 | 1961-01-12 | Calor Emag Elektrizitaets Ag | Overcurrent release device for AC circuits |
DE2607067A1 (en) * | 1976-02-21 | 1977-08-25 | Purfuerst Kg Ing Buero | Speed controlled DC motor protection circuit - has diode switching in ballast resistor when motor acts as generator |
GB1568507A (en) * | 1976-10-15 | 1980-05-29 | Colair Electronics Ltd | Electric motor control units |
DE3119794C2 (en) * | 1981-05-19 | 1985-06-27 | Kautt & Bux Kg, 7000 Stuttgart | Protective circuit arrangement for a phase angle controlled or -regulated electric motor |
-
1984
- 1984-03-10 DE DE19843408790 patent/DE3408790A1/en active Granted
-
1985
- 1985-03-08 AT AT69885A patent/ATA69885A/en not_active IP Right Cessation
- 1985-03-08 FR FR8503457A patent/FR2561046A1/en not_active Withdrawn
- 1985-03-11 GB GB08506237A patent/GB2161334B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3408790C2 (en) | 1989-01-12 |
DE3408790A1 (en) | 1985-09-19 |
GB2161334A (en) | 1986-01-08 |
FR2561046A1 (en) | 1985-09-13 |
GB8506237D0 (en) | 1985-04-11 |
ATA69885A (en) | 1992-01-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |