ZW7-40.5 High Voltage Outdoor Vacuum Circuit Breaker, manufactured and supplied by China's Jinhand Electrical, is designed for three-phase AC 50Hz, 40.5kV systems. This factory-direct breaker provides reliable switching and interruption of load, overload, and short-circuit currents in power distribution networks.
1.Reliable Protection: Effectively interrupts load currents, overloads, and short-circuit currents, ensuring the safety and integrity of power systems.
2.High Voltage Capacity: Specifically designed for operation at 40.5kV, making it suitable for high-voltage applications in outdoor settings.
3.Durability: Built for outdoor use, offering robust performance in various environmental conditions.
| Project | Unit | Parameter | ||
| Rated Voltage | kV | 40.5 | ||
| Rated Insulation Level | Power Frequency Withstand Voltage | Dry Type | 95 | |
| Wet Type | 80 | |||
| Lightning Impulse Withstand (Peak) | 185 | |||
| Rated Current | A | 1250、1600、2000 | ||
| Rated Short-Circuit Breaking Current | kA | 20、25、31.5 | ||
| Rated Operating Sequence |
|
Open-0.3s Close/Open-180s Close/Open | ||
| Rated Short-Circuit Current Breaking Operations | Times | ≥30 | ||
| Rated Short-Circuit Making Current(Peak) | kA | 50、63、80 | ||
| Rated Peak Withstand Current | ||||
| Rated Short-Time Withstand Current | kA | 20、25、31.5 | ||
| Rated Short-Circuit Duration | S | 4 | ||
| Average Opening Speed | m/s | 1.5±0.2 | ||
| Average Closing Speed | 0.7±0.2 | |||
| Contact Closing Bounce Time | S | ≤2 | ||
| Three-Phase Closing(Opening)Synchronization Time Difference | ≤2 | |||
| Closing Time | ≤150 | |||
| Opening Time | ≤60 | |||
| Mechanical Life | Times | 10000 | ||
| Rated Operating Voltage and Auxiliary Circuit Rated Voltage | V | DC220、110、24 | ||
| AC220、110、24 | ||||
| DC Resistance per Phase Circuit(Excluding Transformers) | μΩ | ≤100 | ||
| Permissible Wear Thickness of Moving and Fixed Contacts | mm | 3 | ||
| Weight | kg | 800 | ||
1.Three-Phase Design: Optimized for three-phase power systems with an AC frequency of 50Hz, enhancing compatibility with standard electrical networks.
2.Versatile Operation: Capable of switching and interrupting multiple types of currents, including load, overload, and short-circuit currents.
3.Vacuum Technology: Utilizes vacuum interruption technology, which enhances reliability and reduces maintenance requirements compared to traditional circuit breakers.
1.Full-Scenario High-Voltage Protection: Rated voltage 40.5 kV, suitable for 35 kV medium-voltage distribution networks, with complete load, overload, and short-circuit current breaking capability.
2.Long Mechanical Life: Mechanical life up to 10,000 operations, suitable for frequent switching and automation applications.
3.Strong Environmental Adaptability: Fully sealed solid-insulated pole design, excellent resistance to condensation, pollution, and salt fog, suitable for harsh outdoor environments.
4.Integrated Smart Functions: Supports remote monitoring and local control, with optional intelligent protection, communication, and diagnostic units to support distribution network automation upgrades.
1.Maintenance-Free Vacuum Interrupter: No inspection or replacement of arc-extinguishing medium required throughout its service life, significantly reducing maintenance workload and costs.
2.Modular Structural Design: Current transformers, operating mechanisms, and control units are modularly designed, allowing quick replacement of faulty components and minimizing downtime.
3.Intelligent Condition Monitoring: Integrated sensors and communication modules support temperature monitoring, online mechanical characteristic analysis, and fault early warning for predictive maintenance.
4.Long-Term Maintenance-Free Operation: Few lubrication points, high mechanism reliability, requiring only basic routine inspections, reducing long-term operational costs.
1.Compact Transport Design: Three-pole common enclosure structure, total shipping weight 800 kg, suitable for standard container and truck transport with sturdy, shock-proof packaging.
2.Quick Installation Solution: Provides pre-assembled mounting brackets and standardized accessories, supporting pole-mounted, platform, or foundation installation with simple on-site connection.
3.Easy Commissioning: Equipped with local control panel and debugging interfaces, supports preset parameters, functional testing, and remote commissioning to shorten commissioning time.
4.Global Logistics Support: Partners with multiple international logistics companies to provide door-to-door shipping, customs clearance, and on-site delivery guidance.
1.Fully Sealed Stainless Steel Enclosure: Protection rating IP67, corrosion and UV resistant, suitable for high humidity, high altitude, and coastal areas.
2.High Insulation Reliability: Dry power frequency withstand voltage 95 kV, wet 80 kV, lightning impulse withstand 185 kV, stable insulation performance with low partial discharge.
3.Precise Mechanism Operation: Average opening speed 1.5±0.2 m/s, closing speed 0.7±0.2 m/s, three-phase synchronization ≤2 ms, ensuring reliable operation.
4.Wide Temperature Adaptability: Operating temperature range -40℃ to +60℃, energy storage mechanism and controller validated through high/low temperature cycling tests.
1.Fully Automated Production Line: Uses robotic welding, CNC machining, and APG (Automatic Pressure Gelation) process for solid-insulated poles to ensure consistency.
2.Strict Factory Testing: Each unit undergoes mechanical characteristic tests, circuit resistance tests, power frequency and impulse withstand voltage tests, and partial discharge detection.
3.Material and Process Control: Contacts made of copper-chromium alloy, mechanism components heat-treated and surface-finished, insulation materials meet environmental and weather resistance standards.
4.Quality Traceability System: Implements barcode management system to record key component sources, process parameters, and test data for full lifecycle traceability.
1.Integrated Intelligent Pole: Combines vacuum interrupter, insulation support, and sensors into a solid-insulated pole for compact structure and high reliability.
2.Dual Energy Storage Spring Mechanism: Features manual/electric energy storage, short storage time, stable closing/opening energy, supports fast auto-reclosing.
3.Smart Communication Compatibility: Supports multiple communication protocols including IEC 61850, Modbus, DNP3.0 for easy integration into smart substation systems.
4.User-Friendly Interface: Equipped with large LCD screen and keypad, supports Chinese/English menus, event logging, fault query, and parameter setting.
Over ten years of robust growth has enabled Jinhand to become one of China’s foremost manufacturers and suppliers of electrical equipment. Our factory has embraced various advanced technologies and machinery, and we invite you to procure our high-quality, reasonably priced products made in China.
Address
No. 188, Wei 15th Road, Yueqing City, Wenzhou City, Zhejiang Province, China
