FIELD: electricity.
SUBSTANCE: invention is related to design of vacuum relay intended for switching without load of high-voltage power circuits. According to the invention in vacuum relay a movable contact is fixed rigidly to core of electromagnetic drive into a common lever movable without friction and free play, while position of permanent magnet and its field counteracts pressure of atmospheric pressure to a flexible element separating air and vacuum by exercising effect on the core. Magnetic field value is regulated by a certain ratio of the core length and cross-section of permanent magnet in direction of the core stroke as well as by selection of parameters for magnetic circuit of permanent magnet.
EFFECT: improved reliability, resistance to wear, operational speed of the relay and reduced power of its control.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| HIGH-VOLTAGE VACUUM SWITCH | 1994 |
|
RU2076371C1 |
| HIGH-VOLTAGE VACUUM SWITCH | 1994 |
|
RU2066891C1 |
| HIGH-VOLTAGE VACUUM SWITCH | 2003 |
|
RU2260868C2 |
| HIGH-VOLTAGE VACUUM CHANGE-OVER SWITCH | 0 |
|
SU892504A1 |
| HIGH-VOLTAGE VACUUM SWITCH | 0 |
|
SU938327A1 |
| HIGH-VOLTAGE VACUUM SWITCH | 2006 |
|
RU2314588C1 |
| VACUUM SWITCH | 2001 |
|
RU2230383C2 |
| HIGH-VOLTAGE VACUUM CHANGE-OVER SWITCH | 0 |
|
SU892505A1 |
| HIGH-VOLTAGE VACUUM SWITCH | 1993 |
|
RU2064702C1 |
| THRESHOLD SWITCH | 0 |
|
SU736205A1 |
