Core Functions and Advantages of Intelligent Reclosing

2025-06-01 15:38:59

Core Functions and Advantages of Intelligent Reclosing

Modern intelligent reclosing is no longer limited to "coincidence" operations, but also integrates state perception, strategy optimization and network collaboration capabilities. Its core breakthroughs include:

Multi-dimensional fault identification and protection

Integrate multi-source data such as current, voltage, phase and temperature to achieve:

Accurately distinguish fault types such as short circuit, overload, leakage and undervoltage;

It can cut off leakage or short-circuit current within 0.03 seconds, which is much faster than traditional mechanical protection devices.

Dynamic optimization of the coincidence strategy

Post-acceleration protection: Instantaneous tripping occurs when overlap fails to avoid delay.

Pre-acceleration protection: The first end of the radial network trips without delay, relying on reclosing to correct selectivity.

Dual power supply synchronous detection: By using the logic of "closing the side without voltage first and closing the side with synchronous detection later", the impact of non-synchronous closing is avoided.

Anti-interference and system coordination capabilities

Locking mechanism: Automatically locks in case of manual opening, abnormal circuit breaker (such as insufficient pressure), or failure of continuous reclosing.

It is linked with SCADA and fault location systems to achieve rapid isolation and recovery of faults across the entire network