Vacuum circuit interrupter with on-line vacuum monitoring appara

Details Vacuum circuit interrupter with on-line vacuum monitoring appara Vacuum circuit interrupter with on-line vacuum monitoring appara

1981-01-19

1984-04-03

Scott, J. R.

Electricity: circuit makers and breakers

Liquid contact

Time delay

H01H 3366

Patent

active

044409958

ABSTRACT:
A vacuum circuit interrupter is taught which utilizes the vapor deposition shields thereof and the existing high voltage electrical source or network which is controlled by the circuit interrupter to produce a cold cathode 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 utilized to supply electrical current to a current measuring device and to return one of the shields of the cold cathode detector to the common terminal of the aforementioned voltage source.

REFERENCES:
patent: 3263162 (1966-07-01), Lucek et al.
patent: 3575656 (1971-04-01), Watrous, Jr.
patent: 3958156 (1976-05-01), Tjebben

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