Electrical circuit interrupter for dry metallized film capacitors

• Main Authors: CARINO; JOHN W, STRANGE; THOMAS F
• Format: Patent
• Language: English
• Published: 21.10.1986
• Edition: 4
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

An electrical dry metallized film capacitor includes a capacitor roll section, formed from a metallized film having connecting leads attached to the top and bottom thereof. The capacitor roll section is then coated with a non-stick coating and then inserted into a closed-end container, the connecting lead attached to the bottom of the capacitor roll section being dressed along the side thereof to the open end of the container. Potting compound is then inserted into the container up to the top of the capacitor roll section. Upon electrical failure of the capacitor, the non-stick coating allows gases, formed in the capacitor roll section, to axially shift the capacitor roll section thereby breaking the connection to the bottom connecting lead which is securely held by the potting compound.