Corona discharge-resistant insulating varnish composition and insulated wire having insulated layer formed therefrom
OwnerHyung-Sam CHOI, Joon-Hee LEE +1inventors
InventorsHyung-Sam CHOI, Joon-Hee LEE, Sun-Joo PARK
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Abstract
Disclosed is an insulating varnish composition including an organo silica sol containing a silica covered with a dispersant in a solvent containing N-methyl-2-pyrrolidone (NMP) as a main component and a polyamidimide resin dispersed in a solvent containing NMP as a main component. An insulated layer formed from the insulating varnish composition containing inorganic insulating particles of silica uniformly dispersed therein may have excellent corona discharge resistance, thereby preventing the insulation breakdown.
Claims13
A corona discharge-resistant insulating varnish composition, comprising:
- an organo silica sol dispersed in a solvent containing N-methyl-2-pyrrolidone (NMP) as a main component;
- and
- a polyamidimide resin dissolved in a solvent containing NMP as a main component.
An insulated wire having an insulated layer formed from an insulating varnish composition including an organo silica sol containing a silica covered with a dispersant in a solvent containing NMP as a main component, and a polyamidimide resin dissolved in a solvent containing NMP as a main component.
Dependencies are inferred from the claim text.