Dielectric fluid for a metallized film capacitor

Details Dielectric fluid for a metallized film capacitor Dielectric fluid for a metallized film capacitor

1988-05-10

1990-06-05

Griffin, Donald A.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

29 2542, 252579, H01G 422, H01G 1300

Patent

active

049319000

ABSTRACT:
A zinc metallized film capacitor includes a dielectric fluid comprising epoxidized soybean oil having at least one epoxy group per molecule, preferably four epoxy groups per molecule. Utilizing epoxidized soybean oil with zinc metallization results in a substantial performance improvement under high temperature and high voltage conditions, providing a zinc metallized film capacitor of reduced size and cost. In addition, the epoxidized soybean oil is relatively non-toxic, reducing environmental concerns.

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"On the Prevention of the Capacitance Loss of MPP Capacitors," Nishiki Research Laboratory, Kureha Chemical Industry Co., Ltd., 1986.

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