Automatic Circuit Recloser: Elevating Grid Protection with Intelligent Automation

Smart Fault Isolation, Quick Power Restoration — Automatic Circuit Recloser

The Automatic Circuit Recloser is designed to enhance the reliability of medium-voltage power distribution networks by providing efficient fault isolation and automatic power restoration. Engineered for deployment in both urban and rural settings, it offers seamless integration into existing grid systems, ensuring minimized downtime and optimized power delivery.

How It Works: Fast, Reliable Fault Detection and Auto-Reclosing

The Automatic Circuit Recloser uses cutting-edge vacuum interruption technology and advanced control logic to quickly detect faults and automatically restore power. Once a fault is detected, the recloser isolates the affected section and initiates an automatic reclose sequence, reducing the impact of faults and improving overall grid stability.

• Advanced Fault Detection: The recloser detects both temporary and permanent faults, automatically clearing faults and preventing cascading failures.
• Automatic Power Restoration: After fault isolation, the recloser automatically attempts to restore power, reducing downtime and minimizing service disruptions.

Engineered for Reliability: Built to Endure Harsh Conditions

• Durable Power Supply:
  • Dual power sources: External AC and internal battery backup.
  • Built-in over-discharge protection ensures reliability even during long-term outages.
• Robust Construction:
  • Stainless steel enclosure with corrosion-resistant coating.
  • Weatherproof design that ensures optimal operation in extreme environments.
• Long-Term Durability:
  • Designed to withstand high mechanical stress and harsh outdoor conditions, ensuring reliable operation for years.

Comprehensive Protection Features

The Automatic Circuit Recloser offers a multi-layered approach to protection, reducing the likelihood of faults and improving system resilience:

• Overcurrent Protection: Protects against phase and ground overcurrent conditions.
• Earth Fault Protection: Detects and isolates earth faults efficiently to ensure system safety.
• Cold Load Pickup (CLP) Prevention: Prevents damage during reclosure by managing inrush current.
• Switch-on-to-Fault (SOTF) Prevention: Prevents further system damage by blocking reclosing during fault conditions.
• Over/Under Voltage Monitoring: Ensures system stability by monitoring voltage levels within preset limits (27/59).

Real-Time Monitoring and Diagnostics

The recloser provides comprehensive real-time data, ensuring grid operators have full visibility into the system’s health:

• Current and Voltage Measurements: Continuous tracking of primary and secondary currents and voltages.
• Power Quality Data: Monitoring of active, reactive, and apparent power to identify grid performance.
• Frequency and Power Factor Tracking: Real-time insights into grid frequency and efficiency.
• Historical Event Logging: Detailed logs of faults, trips, and reclosures for system analysis.
• Self-Diagnostic System: Built-in diagnostics ensure proactive maintenance and early fault detection.

Flexible Integration for Future-Ready Grids

The Automatic Circuit Recloser is designed with flexibility in mind, making it an ideal solution for current and future grid automation needs:

• Compatibility: Works seamlessly with both 50Hz and 60Hz systems.
• Multi-Phase Support: Supports both 2-phase and 3-phase wiring configurations.
• Expandable Input Channels: Offers 9 digital input channels for future expansion.
• Easy Configuration: User-friendly setup with two-level password security for enhanced control.
• Future-Proof: Ready for integration with smart grid technologies and automation systems.

Why Choose Automatic Circuit Recloser? Key Advantages

• Minimized Downtime: Intelligent fault detection and automatic recloser functionality ensures faster power restoration and fewer outages.
• Increased Grid Stability: Automatic sectionalizing enhances grid performance by isolating faults and improving power distribution.
• Operational Efficiency: Reduces manual intervention, enabling utilities to focus on strategic operations while the recloser handles fault management.
• Rugged and Reliable: Designed for extreme conditions, reducing maintenance needs and extending equipment life.
• Cost-Effective: Offers an affordable way to upgrade existing systems with advanced protection and automation features.
• Seamless Integration: Works with existing grid protection schemes and can be easily incorporated into ongoing grid upgrades.

Rockwill: Pioneering the Future of Power Distribution

With over 20 years of experience in the design and manufacture of medium-voltage solutions, Rockwill continues to lead the way in innovation and reliability. The Automatic Circuit Recloser reflects Rockwill’s commitment to delivering cutting-edge solutions that enhance grid reliability and contribute to the modernization of power networks worldwide.