FIELD: electricity.
SUBSTANCE: invention refers to switching device with vacuum arc-extinguishing chamber in which at least one movable contact element is located; two in-series connected contact devices with two opened contact planes are located inside vacuum arc-extinguishing chamber; contact element moving together with the first contact element is enveloped with bowl-shaped device which is a part of contact element or rigidly connected to it or equipped with a hole through which the contact element having active contact surfaces on both sides passes. Both contacts have the possibility of being actuated with one common actuator.
EFFECT: increasing switching capacity and dielectric strength.
10 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| HIGH-VOLTAGE VACUUM CIRCUIT BREAKER | 2015 |
|
RU2584551C1 |
| SWITCHING DEVICE UNIT | 2013 |
|
RU2631259C2 |
| CONTACT SYSTEM OF VACUUM ARC-QUENCHING CHAMBER FOR VOLTAGE OF 100 kV | 2010 |
|
RU2464663C2 |
| VACUUM ARC-QUENCHING CHAMBER FOR LOW VOLTAGE SWITCHING INSTALLATIONS | 2007 |
|
RU2407094C1 |
| VACUUM ARC CHUTE | 0 |
|
SU1081695A1 |
| ARC BLOW-OUT CIRCUIT BREAKER | 2011 |
|
RU2581599C2 |
| CONFIGURATION OF ELECTRIC CONTACTS FOR VACUUM CIRCUIT BREAKER | 2011 |
|
RU2545514C2 |
| VACUUM SWITCH | 2001 |
|
RU2230383C2 |
| VACUUM ARC-EXTINGUISHING CHAMBER WITH INTERMEDIATE CONTACT | 0 |
|
SU917229A1 |
| FUSE DISCONNECTING SWITCH | 1998 |
|
RU2241272C2 |
