Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With coupling means
Patent
1975-03-13
1977-10-04
Demeo, Palmer C.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With coupling means
174 11R, 324105, G01R 1504, G01R 500
Patent
active
040526682
ABSTRACT:
In an apparatus comprising a high-voltage measuring capacitor and, in particular, comprising a high-voltage measuring capacitor formed by a high-voltage conductor of a fully insulated, metal-encapsulated high-voltage switch-gear installation and by a surface electrode associated with the former, an auxiliary capacitor is associated with and located adjacent to said high-voltage capacitor. The auxiliary capacitor is part of an evaluation device which generates a signal corresponding to capacitance changes of the auxiliary capacitor resulting from external influences. Following the evaluation device is an indicating device for signaling the occurrence of such capacitance changes and/or a control or regulating device for compensating for capacitance changes of the high-voltage measuring capacitor caused by the same external influences.
REFERENCES:
patent: 2269584 (1942-01-01), Eldredge
patent: 2698430 (1954-12-01), Chavigner
patent: 3515988 (1970-06-01), Shawhan
Freygang Hans-Joachim
Margaris Panajotis
Schmitt Reinhold
DeMeo Palmer C.
Karlsen Ernest F.
Siemens Aktiengesellschaft
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