Capacitive signal coupler

Details Capacitive signal coupler Capacitive signal coupler

1982-11-22

1984-05-29

Griffin, Donald A.

Electricity: electrical systems and devices

Miscellaneous

357 51, H01G 900, H01L 2702

Patent

active

044518706

ABSTRACT:
A capacitive signal coupler for use with a large dynamoelectric machine for coupling signals indicative of corona discharge from the stator bars to a monitor system is combined with an end cap made to fit over the connector extending between two stator bars. The end cap has a high voltage capacitor encapsulated in its walls. One lead from the capacitor is fastened to the connector with a screw before the end cap is installed. The other lead projects from the end cap and is connected to one terminal of a high voltage fuse. The fuse is secured to the end cap. The other terminal of the fuse is adapted to be connected to a cable leading to a monitor system. The coupler is preferably fastened to the lower end of the conductors of a vertical dynamoelectric machine where there is a full range of choice of location in the circuit voltages from line to neutral in two bar steps. The end cap is epoxy sealed in place to make an installation requiring little more space than the installation of a normal end cap.

REFERENCES:
patent: 1856392 (1932-05-01), Kevelson
patent: 4107762 (1978-08-01), Shirn et al.
patent: 4169271 (1979-09-01), Saitoh
patent: 4245187 (1981-01-01), Wagner et al.

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