IT1264863B1 - Automatic testing device e.g for residual current circuit breakers - switches off mechanical disconnecting chain which starts from relay to hooking of mechanism for a little while, and decouples lever which usually transmits motion in two half-levers - Google Patents
Automatic testing device e.g for residual current circuit breakers - switches off mechanical disconnecting chain which starts from relay to hooking of mechanism for a little while, and decouples lever which usually transmits motion in two half-leversInfo
- Publication number
- IT1264863B1 IT1264863B1 ITMI931332A IT1264863B1 IT 1264863 B1 IT1264863 B1 IT 1264863B1 IT MI931332 A ITMI931332 A IT MI931332A IT 1264863 B1 IT1264863 B1 IT 1264863B1
- Authority
- IT
- Italy
- Prior art keywords
- lever
- levers
- axis
- relay
- testing device
- Prior art date
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
In the testing device the disconnecting lever, which usually transmits the motion from the pusher (11) of the relay (10) to the hooking device usually stopping the disconnecting mechanism of the circuit breaker, is split into two half levers (20,21) linked by a pin or lock. The half levers are hinged on the same axis (14) but have two possible mutual positions. In a first position, corresponding to the normal working order, without the action of external agents, e.g. an electromagnet, the half levers are integral to each other working as a single lever. In a second position, the axis of the half levers is shifted so that the dragging half lever (20) shifts integrally with the axis by means of two stops (22,23) on the axis. The dragged lever (21) stops because it is linked to a stand and is free regarding the axis (14). Thanks to the shifting of the axis a tailpiece (27) of half lever (20) is located inside a free space (28) of the dragged half lever (21). During the test, the pusher of the relay may freely rotate the half-lever (20) till switching on a contact (29) which confirms that the protection system is efficient.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT93MI1332 IT1264863B1 (en) | 1993-06-22 | 1993-06-22 | Automatic testing device e.g for residual current circuit breakers - switches off mechanical disconnecting chain which starts from relay to hooking of mechanism for a little while, and decouples lever which usually transmits motion in two half-levers |
EP94109177A EP0632477B1 (en) | 1993-06-22 | 1994-06-15 | Device for automatically or manually testing of a protecting, controlling or signalling apparatus |
AT94109177T ATE183333T1 (en) | 1993-06-22 | 1994-06-15 | DEVICE FOR AUTOMATIC OR MANUAL TESTING OF A PROTECTION, CONTROL OR ALARM DEVICE |
DE69419985T DE69419985T2 (en) | 1993-06-22 | 1994-06-15 | Device for automatic or manual testing of a protection, control or signaling device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT93MI1332 IT1264863B1 (en) | 1993-06-22 | 1993-06-22 | Automatic testing device e.g for residual current circuit breakers - switches off mechanical disconnecting chain which starts from relay to hooking of mechanism for a little while, and decouples lever which usually transmits motion in two half-levers |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI931332A0 ITMI931332A0 (en) | 1993-06-22 |
ITMI931332A1 ITMI931332A1 (en) | 1994-12-22 |
IT1264863B1 true IT1264863B1 (en) | 1996-10-17 |
Family
ID=11366442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT93MI1332 IT1264863B1 (en) | 1993-06-22 | 1993-06-22 | Automatic testing device e.g for residual current circuit breakers - switches off mechanical disconnecting chain which starts from relay to hooking of mechanism for a little while, and decouples lever which usually transmits motion in two half-levers |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1264863B1 (en) |
-
1993
- 1993-06-22 IT IT93MI1332 patent/IT1264863B1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ITMI931332A1 (en) | 1994-12-22 |
ITMI931332A0 (en) | 1993-06-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970627 |