FIELD: electricity.
SUBSTANCE: circuit breaker contains support insulator (20); at least one horizontally arranged disjunctor (10) of prolonged shape placed on support insulator (20); current taps (30) connected to the ends of disjunctor, in some versions there is horizontally arranged capacitor (50) and/or resistor (60) of prolonged shape connected between current taps parallel to disjunctor (10); at least one corona ring (40) located at least partially around one of current taps. Corona ring (40) is located so that vertical distance (d1) between inner surface of lower part of corona ring and the central axis (10a, 50a, 60a) of disjunctor (10), specified capacitor (50) or additional resistor (60), depending on their position, is about 1.5-4 times less than distance (d2) between inner surface of upper part of corona ring and the central axis.
EFFECT: increasing circuit breaker dielectric strength under increased humidity conditions.
18 cl, 4 dwg
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