FIELD: electrical engineering; high-voltage circuit- opening devices. SUBSTANCE: switch has case, compression chamber, suction chamber, and movable tubular contact member with vent hole open to suction chamber. Mentioned tubular contact also has additional vent hole open to switch interior. Movable tubular contact has internal pipe connected to additional vent hole and duct between tubular contact and pipe communicates with vent hole. EFFECT: improved breaking capacity of switch. 1 dwg
| Title | Year | Author | Number |
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SU985838A1 |
