Vacuum circuit interrupter with insulated vacuum monitor...

Details Vacuum circuit interrupter with insulated vacuum monitor... Vacuum circuit interrupter with insulated vacuum monitor...

H - Electricity

01

H

324/21, 306/215

H01H 33/66 (2006.01) G01L 21/30 (2006.01) H01H 33/668 (2006.01)

Patent

CA 1173108

41 49,345 ABSTRACT OF THE DISCLOSURE A vacuum circuit interrupter as taught which utilizes the vapor deposition shields thereof in the existing high voltage source or network which is con- trolled by the circuit interrupter to produce a cold cathode ion detector for determining the quality or amount of vacuum within the vacuum circuit interrupter. The central shield support ring which protrudes through the insulating casing of the circuit interrupter is used to supply ion current to a current detecting bridge through a circumferentially insulated surge resistor and from there to the common terminal of the aforementioned voltage source to thereby return one of the plates of the ion detecting device to the voltage source.

393699

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