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The 33KV Pole Mounted Recloser Circuit Breaker is specifically engineered for overhead distribution feeders where service continuity, fault isolation speed, and remote network management are critical. Unlike conventional circuit breakers that only disconnect faulted sections, a pole mounted recloser automatically restores power after temporary faults caused by lightning strikes, tree contact, wildlife intrusion, or switching surges. This capability significantly reduces outage duration while improving feeder reliability and customer satisfaction.
Built on the proven vacuum interruption platform used in the 33KV Vacuum Circuit Breaker, the recloser combines advanced fault detection with intelligent self-healing functionality. Similar to the Automatic Reclosing Circuit Breaker, it can automatically analyze fault conditions and execute multiple reclosing sequences before locking out permanent faults. The equipment also inherits the environmental durability of the Outdoor Recloser Circuit Breaker family, making it suitable for coastal regions, mountain networks, deserts, forests, and utility distribution systems. For utilities upgrading aging infrastructure, this solution serves as an ideal replacement for oil reclosers and electromechanical protection systems while maintaining compatibility with modern 33KV Outdoor Recloser Circuit Breaker automation architectures.
Studies across utility distribution networks show that more than 80% of overhead line faults are temporary. Traditional breakers require operator intervention before restoring service, while a 33KV Pole Mounted Recloser Circuit Breaker automatically recloses the feeder after a predefined dead time. This dramatically reduces outage duration and improves key utility performance indicators such as SAIDI, SAIFI, CAIDI, and network availability.
| Parameter | Specification |
|---|---|
| Rated Voltage | 33 kV |
| Maximum System Voltage | 38 kV |
| Rated Frequency | 50 / 60 Hz |
| Rated Continuous Current | 630A / 800A / 1250A |
| Rated Short Circuit Breaking Current | 16kA / 20kA / 25kA |
| Rated Making Current | 50kA / 63kA Peak |
| Lightning Impulse Withstand Voltage (BIL) | 170kV / 200kV |
| Power Frequency Withstand Voltage | 70kV, 1 Minute |
| Mechanical Endurance | ≥30,000 Operations |
| Electrical Endurance | 100 Full Fault Interruptions |
| Maximum Reclosing Shots | 1-4 Programmable |
| Dead Time Setting | 0.3s-300s Adjustable |
| Operating Mechanism | Magnetic Actuator |
| Interrupting Medium | Vacuum |
| Insulation Medium | Solid Dielectric / Dry Air |
| Control Supply Voltage | 24V / 48V / 110V / 220V DC |
| Battery Backup | Standard |
| Communication Protocols | IEC61850, DNP3, Modbus, IEC60870-5-101/104 |
| Cyber Security | IEEE 1686 Compliant |
| Protection Degree | Main Tank IP67 / Control Cabinet IP65 |
| Operating Temperature | -40°C to +55°C |
| Maximum Installation Altitude | 3000m |
| Applicable Standards | IEC 62271-111, IEC 62271-100, IEEE C37.60 |
| Comparison Item | Our 33KV Pole Mounted Recloser | Traditional Pole-Mounted Breaker |
|---|---|---|
| Automatic Service Restoration | Yes, Up To 4 Reclosing Operations | No |
| Fault Analysis Capability | Built-in Intelligent Controller | External Relay Required |
| SCADA Integration | Standard | Optional or Limited |
| Remote Configuration | Supported | Generally Not Available |
| Event Recording | Thousands of Events Stored | Limited Data |
| Maintenance Frequency | Very Low | Higher |
| Smart Grid Compatibility | Excellent | Basic |
| Renewable Energy Integration | Optimized | Limited |
| Utility Reliability Improvement | Significant | Minimal |
| Total Lifecycle Cost | Lower | Higher |
A 33KV Pole Mounted Recloser Circuit Breaker is an intelligent medium-voltage switching device installed on overhead distribution lines. It automatically detects faults, interrupts fault current, and restores service through programmed reclosing operations when the fault is temporary.
Most overhead line faults are temporary and disappear within seconds. Automatic reclosing restores service without requiring field crews, significantly improving grid reliability and reducing customer outages.
Yes. The controller supports IEC 61850, DNP3, Modbus, and IEC 60870 protocols, allowing seamless integration with utility SCADA, DMS, and smart grid platforms.
Available functions include phase overcurrent, earth fault, sensitive earth fault, directional overcurrent, under/over voltage, frequency protection, cold load pickup, inrush restraint, and custom automation logic.
Yes. The recloser is widely used in solar farms, wind farms, battery storage systems, and distributed generation networks where feeder automation and rapid fault recovery are required.
The vacuum interrupter is sealed for life and requires no contact maintenance. Utilities typically perform periodic visual inspections and communication checks, resulting in significantly lower maintenance costs than oil-based switching equipment.
Yes. We offer customized communication protocols, protection schemes, control voltages, enclosure materials, branding, mounting structures, and utility-specific automation logic for international power projects.
As an experienced manufacturer of medium-voltage distribution automation equipment, we provide complete OEM, ODM, and utility engineering support. Services include customized controller programming, private labeling, FAT testing, relay setting assistance, communication protocol integration, project documentation, commissioning guidance, and long-term technical support. Each 33KV Pole Mounted Recloser Circuit Breaker undergoes comprehensive factory testing to ensure reliable performance in smart grid and feeder automation applications worldwide.
