FR478800A - Device for preventing the runaway of induced motors - Google Patents
Device for preventing the runaway of induced motorsInfo
- Publication number
- FR478800A FR478800A FR478800DA FR478800A FR 478800 A FR478800 A FR 478800A FR 478800D A FR478800D A FR 478800DA FR 478800 A FR478800 A FR 478800A
- Authority
- FR
- France
- Prior art keywords
- runaway
- motors
- induced
- preventing
- induced motors
- 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
- H02H7/093—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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/22—Automatic control in amplifiers having discharge tubes
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE478800X | 1914-06-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR478800A true FR478800A (en) | 1916-01-07 |
Family
ID=6542309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR478800D Expired FR478800A (en) | 1914-06-04 | 1915-05-25 | Device for preventing the runaway of induced motors |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR478800A (en) |
GB (1) | GB478800A (en) |
-
1915
- 1915-05-25 FR FR478800D patent/FR478800A/en not_active Expired
-
1937
- 1937-07-03 GB GB18565/37A patent/GB478800A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB478800A (en) | 1938-01-25 |
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