Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
149 words
Grounding switch in combination with a gas-insulated, metal-enclosed, high voltage switchgear, comprising: a movable switch contact in permanent connection with a grounded enclosure of the switchgear; at least one phase conductor; a movable counter contact permanently connected to said at least one phase conductor; a metal screen surrounding said phase conductor in the region of said movable counter contact; a first operating device for displacement of said movable switch contact between an OFF-position and an ON-position for grounding said switchgear, with said movable switch contact in non-contacting and contacting relationship with said movable counter contact, respectively in said OFF-position and said ON-position; said movable counter contact is centrally mounted in said metal screen, and being arranged, upon closing of said movable switch contact to said ON-position, to be displaced from said screen towards said movable switch contact, said movable counter contact being retracted within said screen in said OFF-position.
Claim 2
Dependent Claim
149 words
Grounding switch in combination with a gas-insulated, metal-enclosed, high voltage switchgear, comprising: a movable switch contact in permanent connection with a grounded enclosure of the switchgear; at least one phase conductor; a movable counter contact permanently connected to said at least one phase conductor; a metal screen surrounding said phase conductor in the region of said movable counter contact; a first operating device for displacement of said movable switch contact between an OFF-position and an ON-position for grounding said switchgear, with said movable switch contact in non-contacting and contacting relationship with said movable counter contact, respectively in said OFF-position and said ON-position; said movable counter contact is centrally mounted in said metal screen, and being arranged, upon closing of said movable switch contact to said ON-position, to be displaced from said screen towards said movable switch contact, said movable counter contact being retracted within said screen in said OFF-position.
Claim 3
Dependent Claim
34 words
The combination according to claim 1 wherein said movable counter contact includes an elevated portion extending towards said movable switch contact, such that flash-over occurs between said movable switch contact and said elevated portion.
Claim 4
Dependent Claim
22 words
The combination according to claim 1, further comprising a linkage mechanism for connecting said movable counter contact to said first operating device.
Claim 5
Dependent Claim
40 words
The combination according to any of claims 1, 2 or 3 wherein said first operating device displaces said movable counter contact during the closing operation at a speed of 0.25 to 1 times the speed of said movable switch contact.
Claim 6
Dependent Claim
25 words
The combination according to claim 1, further comprising a second operating device for operating said movable counter contact in synchronism with said first operating device.
Claim 7
Dependent Claim
34 words
The combination according to claim 5 wherein said movable counter contact includes an elevated portion extending towards said movable switch contact, such that flash-over occurs between said movable switch contact and said elevated portion.
Claim 8
Dependent Claim
37 words
The combination according to claims 5 or 6 wherein said second operating device displaces said movable counter contact during the closing operation at a speed of 0.25 to 1 times the speed of said movable switch contact.