Applicable to three-phase AC power systems with a rated voltage of 24kV and a frequency of 50Hz, widely used in power plants, substations, petrochemicals, metallurgy, manufacturing, airports, and residential areas for the protection and control of electrical facilities. Particularly suitable for locations with frequent operations at rated current or multiple interruptions of short-circuit currents. Fully interchangeable with VD4 and VEP circuit breakers, it can be installed in withdrawable or fixed air-insulated switchgear. The product complies with GB1984 "AC High-Voltage Circuit Breakers," DL/T403 "Technical Conditions for Ordering 12–40.5kV Indoor AC High-Voltage Circuit Breakers," and relevant standards such as IEC60694 and IEC62271-100.
The VKY-24 series solid-sealed high-voltage vacuum circuit breaker adopts advanced APG technology, directly encapsulating the vacuum interrupter and main conductive circuit within an epoxy resin pole to form a solid-sealed insulation method, representing the world's highest level in the design and manufacturing of high-voltage vacuum circuit breakers. Note: When the vacuum interrupter solid-sealed pole of this model is replaced with a conventional insulation cylinder installation method, the model is designated as VKY-24P.