Basic Switching and Isolation Functions
Normal Circuit Operation: Enables manual, electric, or remote switching of high-voltage line loads, offering flexible control over circuit connection and disconnection during routine operations and maintenance.
Safety Isolation: Provides a clearly visible break point in the open position; combined with mechanical interlocking mechanisms, it ensures the safety of personnel and equipment during line maintenance.
Extreme Environment Adaptability: Features a fully enclosed structure resistant to wind, rain, dust, and UV radiation; operates stably across a wide temperature range (-40°C to +65°C) with protection ratings up to IP67.
Multiple Fault Protection Functions
Overcurrent and Short-Circuit Protection: Detects abnormal current surges or short-circuit faults and interrupts the fault current within milliseconds, preventing accidents from escalating and damaging power equipment.
Grounding and Undervoltage Protection: Automatically identifies ground faults and interrupts the circuit; actively trips the breaker during undervoltage conditions to prevent damage to connected equipment.
Anti-Misoperation Interlocking: Utilizes dual mechanical-electrical interlocking to eliminate errors-such as operating disconnectors under load-thereby mitigating human-related safety risks.
Smart Grid Expansion Functions
"Three-Remote" Automation Control: Supports remote control, remote signaling, and remote adjustment; enables remote monitoring and unmanned operation when integrated into distribution automation systems.
Automatic Reclosing: Intelligent models can be configured for 1 to 3 automatic reclosing attempts, rapidly restoring power after transient faults and significantly enhancing supply reliability.
Dual Power Source Switching: Certain models equipped for dual power sources can rapidly switch between two power lines (switching time ≤ 0.2 seconds), ensuring continuous power supply for critical facilities such as hospitals and data centers.