Deeply Integrated Pole-Mounted Circuit Breaker
Designed specifically for 12kV distribution overhead lines, adaptable to harsh environments and frequent operations, ensuring stable grid operation.
Product Description
The HXV8 pole-mounted circuit breaker is an outdoor switchgear developed by our company based on the market demands of State Grid. It is used for the control and protection of three-phase 50Hz, 12kV rated voltage overhead lines in distribution networks. While meeting conventional user requirements, it is also suitable for frequent operation and harsh environmental conditions.
3D 模型加载中...
3D 模型加载失败，请检查 GLB 文件格式、压缩扩展或服务器响应。
Product Advantages
Independent Post
Single-phase independent post-type structure design.
Phase Distance Adaptation
Accommodates technical solutions for different phase spacings.
Coaxial Direct Drive
Coaxial direct-acting disconnector with large contact gap.
Spring Contact Finger
The moving contact of the direct-acting disconnector uses corrugated bronze spring contacts.
Fully Sealed Insulation
The fully sealed insulation enclosure is cast from high-weatherability outdoor epoxy resin.
Maintenance-Free, Long Service Life
Long mechanical life, maintenance-free.
Deeply Integrated Pole-Mounted Circuit Breaker
HXV8-12
Technical Specifications
| Parameter Name | Unit | Value or Description | |
| Rated Voltage | kV | 12 | |
| Rated Insulation Level | 1min Power Frequency Withstand Voltage (Phase-to-Phase, Phase-to-Ground (Wet Test)/Across Open Contact) | kV | 42/48 |
| Lightning Impulse Withstand Voltage (Phase-to-Phase, Phase-to-Ground/Across Open Contact) | kV | 75/85 | |
| Rated Frequency | Hz | 50 | |
| Rated Current | A | 630 | |
| Rated Short-Time Withstand Current | kA | 20 | |
| Rated Peak Withstand Current | kA | 50 | |
| Rated Short-Circuit Current Duration | s | 4 | |
| Rated Short-Circuit Breaking Operations | Times | 30 | |
| Rated Short-Circuit Breaking Current | AC Component RMS | kA | 20 |
| DC Component Percentage | 52% | ||
| Rated Operating Sequence | 0-0.3s-CO-180s-CO | ||
| Rated Short-Circuit Making Current | kA | 50 | |
| Rated Out-of-Phase Breaking Current | kA | 5 | |
| Rated Phase-Opposition Breaking Current | kA | 17.4 | |
| Rated Capacitive Switching Current (Class C2) | Rated Cable Charging Breaking Current (RMS) | A | 25 |
| Rated Main Circuit Resistance | μΩ | ≤80 | |
| Mechanical Life | Circuit Breaker | Times | 12000 |
| Secondary Circuit 1min Power Frequency Withstand Voltage | kV | 2 | |
| Auxiliary and Control Circuit | Rated Supply Voltage | V | DC: 24 or Other |
| Rated Supply Frequency | Hz | 50 | |
| Partial Discharge Level (1.1Ur) | pC | ≤20 | |
| Enclosure Protection Rating of Circuit Breaker | IP67 | ||
| Current Sensor | Phase Current (Ratio) | 600A/1V | |
| Zero-Sequence Current (Ratio) | 20A/0.2V | ||
| Phase Current (Accuracy Class) | Protection 5P10, Metering 0.5S, Three-in-One Compatible | ||
| Zero-Sequence Current (Accuracy Class) | <1% (1%~120% In), Protection 10P10 | ||
| Load Impedance | ≥20kΩ | ||
| Implementation Method | Low-Power Electromagnetic Type | ||
| Temperature Range | -40℃~70℃ | ||
| Voltage Sensor | Phase Voltage (Ratio) | (10kV/√3)/(3.25V/√3) | |
| Zero-Sequence Voltage (Ratio) | (10kV/√3)/(6.5V/√3) | ||
| Phase Voltage (Accuracy Class) | Class 0.5 | ||
| Zero-Sequence Voltage (Accuracy Class) | Class 3P | ||
| Load Impedance | ≥1MΩ | ||
| Implementation Method | Capacitive Voltage Divider | ||
| Temperature Range | -40℃~70℃ | ||
| Energy Harvesting Sensor | Rated Primary Input Voltage | kV | 10kV/√3 |
| Rated Secondary Output Voltage | AC190V | ||
| Single-Side Rated Single-Phase Total Harvesting Power | 6 |
Mechanical Parameters
| Item | Unit | Parameter |
| Contact Gap S | mm | 9 ± 1 |
| Contact Overtravel L1 | mm | 3 ± 1 |
| Opening Speed (6 mm after contact separation) | m/s | 1.2 ± 0.2 |
| Closing Speed (6 mm before contact touch) | m/s | 0.8 ± 0.2 |
| Opening Time | ms | 20 ~ 60 |
| Closing Time | ms | 30 ~ 70 |
| Three-Phase Opening/Closing Non-Simultaneity | ms | ≤ 2 |
| Contact Closing Bounce Time | ms | ≤ 2 |
