ZW32-40.5 Outdoor Pole Mounted Vacuum Circuit Breaker | 35kV High Voltage Auto Recloser

The ZW32-40.5 Series Outdoor Vacuum Circuit Breaker is designed for three-phase power systems with a rated voltage of 35kV and AC 50Hz. It serves as an essential protective component for separating and combining load currents, overload currents, and short-circuit currents. This pole-mounted breaker can be integrated with a reclosing controller to function as an intelligent auto-recloser, capable of identifying current characteristics and performing multiple automatic reclosing sequences. Equipped with an electronic PT for power supply and signal output, it provides advanced three-stage composite protection, including overcurrent, inrush current, and short-circuit quick-break delays.

Product categories

ZW32-40.5 Outdoor Pole Mounted Vacuum Circuit Breaker | Auto Recloser

The ZW32-40.5 series outdoor high-voltage vacuum circuit breaker is a robust and intelligent protection solution designed for three-phase power systems with a rated voltage of 35kV and a frequency of AC 50Hz. This versatile equipment is engineered for separating and combining load currents, overload currents, and short-circuit currents, making it an essential component for rural and industrial power distribution networks.

Core Functionality & Intelligence

  • Auto-Reclosing Capability: When equipped with a reclosing controller, the ZW32-40.5 identifies current characteristics to achieve multiple automatic reclosing sequences, significantly reducing power outage times.

  • Integrated Power Source: It features a self-provided PT (Potential Transformer) as a power source, enabling the unit to function as an intelligent circuit breaker with voltage and current signal output.

  • Advanced Composite Protection: The electronic PT allows for a sophisticated three-stage protection system, including overcurrent delay, inrush current delay, and short-circuit quick-break protection.

Key Technical Advantages

  • Maintenance-Free Vacuum Arc Quenching: Utilizes vacuum technology for arc extinguishing, ensuring high reliability and a long service life with minimal maintenance.

  • Pole-Mounted Design: Specifically designed for pole-top installation, saving substation space and simplifying the layout of distribution lines.

  • Flexible Control: The system can be controlled remotely or locally, providing utilities with flexible management of their grid assets.

Applications

  • Grid Automation: Ideal for smart grid projects requiring automated fault isolation and power restoration.

  • Substation Protection: Used in 35kV transformer substations and industrial distribution systems for reliable switching operations.

  • Line Sectionalizing: Effective for segmenting long distribution lines to isolate faults and minimize the impact on customers.

Auto-Recloser and Control Configuration

Please specify whether the ZW32-40.5 is required as a basic outdoor breaker or as an intelligent auto-recloser package. For automated feeders, confirm the protection functions, CT/PT sensors, controller model, communication protocol, SCADA points, control power supply and required reclosing sequence.

Compare the key selection factors in our 35kV VCB guide or send your single-line diagram and RFQ.

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