GB940614A - An arrangement for preventing overheating of electrical apparatus - Google Patents
An arrangement for preventing overheating of electrical apparatusInfo
- Publication number
- GB940614A GB940614A GB5214/62A GB521462A GB940614A GB 940614 A GB940614 A GB 940614A GB 5214/62 A GB5214/62 A GB 5214/62A GB 521462 A GB521462 A GB 521462A GB 940614 A GB940614 A GB 940614A
- Authority
- GB
- United Kingdom
- Prior art keywords
- breaker
- circuit
- trip
- arrangement
- overheating
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
- E04G21/08—Internal vibrators, e.g. needle vibrators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Breakers (AREA)
Abstract
940,614. Protective arrangements. VIBRATECHNIQUES S.A. Feb. 12, 1962 [March 28, 1961], No. 5214/62. Heading H2K. A three-phase apparatus, e.g. an electric concrete vibrator, is protected against excess currents and short-circuits by two trip coils 12 of a three-pole thermal-magnetic circuit-breaker 11 and against overheating by a thermal switch 4 incorporated in the apparatus 3 and connected in series with the third trip coil 12 of the circuit-breaker 11. The circuit-breaker 11 has two poles connected between two of the supply lines (L 2 , L 3 ) and the apparatus 3, the other supply line L 1 being connected directly to the apparatus. The third pole of the circuit-breaker is connected in series with the thermal switch 4 across the lines L 2 , L 3 so that in the event of overheating, the switch 4 closes to trip the circuit-breaker 11.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR856997A FR1293056A (en) | 1961-03-28 | 1961-03-28 | Safety device against overheating of electrical devices and its application to concrete vibrators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB940614A true GB940614A (en) | 1963-10-30 |
Family
ID=8751838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5214/62A Expired GB940614A (en) | 1961-03-28 | 1962-02-12 | An arrangement for preventing overheating of electrical apparatus |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1293056A (en) |
| GB (1) | GB940614A (en) |
-
1961
- 1961-03-28 FR FR856997A patent/FR1293056A/en not_active Expired
-
1962
- 1962-02-12 GB GB5214/62A patent/GB940614A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1293056A (en) | 1962-05-11 |
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