GB1443730A - Electric switching apparatus - Google Patents
Electric switching apparatusInfo
- Publication number
- GB1443730A GB1443730A GB5023573A GB5023573A GB1443730A GB 1443730 A GB1443730 A GB 1443730A GB 5023573 A GB5023573 A GB 5023573A GB 5023573 A GB5023573 A GB 5023573A GB 1443730 A GB1443730 A GB 1443730A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switching
- pin
- magnetic
- springs
- holding device
- 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
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/122—Automatic release mechanisms with or without manual release actuated by blowing of a fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
- H01H5/02—Energy stored by the attraction or repulsion of magnetic parts
Landscapes
- Breakers (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Fuses (AREA)
Abstract
1443730 Switching apparatus HAZEMEIJER BV 29 Oct 1973 [30 Oct 1972] 50235/73 Heading H1N Three-phase switching apparatus comprising an insulating stationary portion 1 in which fixed contacts, not shown, are embedded and three symmetrically arranged movable switching caps 3, one shown in Fig. 1, each containing bridging conductors has a switching-on mechanism consisting of a movable cylinder 4 to which the caps 3 are attached together with symmetrically arranged shoes 6 slidable on guides 7 towards a magnetic holding device comprising an arrangement of permanent magnets 10 which retains an armature 11 on the cylinder 4 when the apparatus is in the switched-on position against the stored energy of a set of springs 9 fixedly located on a bracket 8 and attached to the shoes 6 so that the springs are stretched during the switching-on process. In the magnetically retained position the armature 11 rests against a flat 15 of a D-shaft 12 which can be rotated by means of a lever arm 16 being pressed by a pin 17 to disengage the magnetic hold and the apparatus is then switched off by the stored energy of the springs 9. In series connection with its switching cap 3 each phase of the switching apparatus is provided with a fuse 18, Fig. 2, incorporating a striking pin 22 which, when a fuse blows, pushes a permanent magnet 21 towards another permanent magnet 24 located on the other side of a wall 23 forming part of the insulating stationary portion 1. As shown in Fig. 3 the permanent magnets 24 are mounted on the arms of a spider 25 normally lying against an abutment pin 27 and which forms the rotor of a magnetic motor rotatable under magnetic unbalance conditions to rotate clockwise about a pivot 26 so that a projection 28 causes a pendulum 29 to swing anticlockwise about a pivot shaft 30 until its arm carrying a bevelled portion 32 strikes an abutment 31 during which movement the bevelled portion 32 passes over the end of pin 17 and pushes the pin axially to release the magnetic holding device as described. The shaft 30 has an extension 33 by which the pendulum can be reset or be swung manually to release the magnetic holding device. Specification 1,099,901 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL727214678A NL152106B (en) | 1972-10-30 | 1972-10-30 | ELECTRIC SWITCHING DEVICE WITH MAGNETIC LOCKING DEVICE. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1443730A true GB1443730A (en) | 1976-07-21 |
Family
ID=19817264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5023573A Expired GB1443730A (en) | 1972-10-30 | 1973-10-29 | Electric switching apparatus |
Country Status (9)
Country | Link |
---|---|
US (1) | US3859611A (en) |
JP (1) | JPS5735536B2 (en) |
BE (1) | BE806406A (en) |
CA (1) | CA987714A (en) |
CH (1) | CH560962A5 (en) |
FR (1) | FR2204862B1 (en) |
GB (1) | GB1443730A (en) |
NL (1) | NL152106B (en) |
SE (1) | SE387003B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5724565B2 (en) * | 1974-05-29 | 1982-05-25 | ||
JPS593036U (en) * | 1982-06-29 | 1984-01-10 | 株式会社昭和製作所 | Hydraulic shock absorber damping force adjustment device |
CN102412085B (en) * | 2010-09-20 | 2014-09-10 | 西门子公司 | Double-break electrical contact device and isolating switch using same |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1813191A (en) * | 1926-04-30 | 1931-07-07 | Westinghouse Electric & Mfg Co | High speed circuit breaker |
US3234347A (en) * | 1963-08-08 | 1966-02-08 | David Olof Hagglund | Protective switching arrangement with demountable fuse carrier |
GB1143805A (en) * | 1966-08-04 |
-
1972
- 1972-10-30 NL NL727214678A patent/NL152106B/en not_active IP Right Cessation
-
1973
- 1973-10-23 BE BE136971A patent/BE806406A/en unknown
- 1973-10-25 SE SE7314527A patent/SE387003B/en unknown
- 1973-10-26 US US410025A patent/US3859611A/en not_active Expired - Lifetime
- 1973-10-29 JP JP12155073A patent/JPS5735536B2/ja not_active Expired
- 1973-10-29 FR FR7338541A patent/FR2204862B1/fr not_active Expired
- 1973-10-29 GB GB5023573A patent/GB1443730A/en not_active Expired
- 1973-10-30 CA CA184,595A patent/CA987714A/en not_active Expired
- 1973-10-30 CH CH1525773A patent/CH560962A5/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CH560962A5 (en) | 1975-04-15 |
BE806406A (en) | 1974-04-23 |
FR2204862B1 (en) | 1977-03-11 |
FR2204862A1 (en) | 1974-05-24 |
SE387003B (en) | 1976-08-23 |
DE2354133A1 (en) | 1974-05-09 |
JPS5735536B2 (en) | 1982-07-29 |
US3859611A (en) | 1975-01-07 |
JPS4977181A (en) | 1974-07-25 |
DE2354133B2 (en) | 1976-09-16 |
NL7214678A (en) | 1974-05-02 |
NL152106B (en) | 1977-01-17 |
CA987714A (en) | 1976-04-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |