Single-Phase Smart Isolating Recloser
Applied to 15.5kV single-phase lines, it filters transient faults and isolates permanent faults through multi-shot reclosing and lockout functions.
Product Description
The HXD820 series single-phase reclosers include two models: HXD820-15 and HXD820-27; each model is available in three current ratings: 200A, 100A, and 40A; depending on the voltage rating of the single-phase recloser, it can be used to replace traditional fuses in power grids of corresponding voltage levels. With a mechanical lifespan of approximately 10,000 operations, a single recloser is equivalent to 10,000 fuses, significantly reducing fuse blowouts and material waste, lowering labor and resource investments in operation and maintenance, enhancing grid responsiveness and stability, and drastically shortening power outage durations.
Product Advantages
Single-Phase Smart Isolating Recloser
Single-Phase Recloser Product Parameters
| Parameter | HXD820-29 | HXD820-20 |
| Rated Voltage | 27kV | 15.5kV |
| Rated Frequency | 50Hz/60Hz | 50Hz/60Hz |
| Neutral Grounding Method | Effectively Grounded | Effectively Grounded |
| Power Frequency Withstand Voltage | 60kV (Dry, 1min) | 50kV (Dry, 1min) |
| 60kV (Wet, 10s) | 50kV (Wet, 10s) | |
| Lightning Impulse Withstand Voltage | 150kV | 110kV |
| Rated Current | 40/100/200A | 40/100/200A |
| Rated Short-Circuit Breaking Current | 6.3kA | 6.3kA |
| Number of Short-Circuit Breaking Operations | 68 | 68 |
| Rated Peak Withstand Current | 16.4kA (100A/200A) 10.4kA (40A) | 16.4kA (100A/200A) 10.4kA (40A) |
| Rated Short-Circuit Duration | 1s (100A/200A) 0.5s (40A) | 1s (100A/200A) 0.5s (40A) |
| Rated Line Charging Breaking Current | 10A | 10A |
| Rated Cable Charging Switching Current | 25A | 25A |
| Rated Operating Sequence | O-t1-CO-t2-CO-t2-CO, t1 = 0.5s-30s t2 = 1s-30s Adjustable | O-t1-CO-t2-CO-t2-CO, t1 = 0.5s-30s t2 = 1s-30s Adjustable |
| Maximum Reset Time | 180s | 180s |
| Minimum Trip Current | 2A -6.3kA Programmable | 2A -6.3kA Programmable |
| Minimum Line Current - Self-Powered | 1.5A (40A/100A) | 1.5A (40A/100A) |
| 2A (200A) | 2A (200A) | |
| Mechanical Life | 10000 Operations | 2000 Operations |
| IP Protection Rating | IP66 | IP66 |
| Main Circuit Resistance | ≤4200 μΩ (40A) | ≤4200 μΩ (40A) |
| ≤1200 μΩ (100A) | ≤1200 μΩ (100A) | |
| ≤700 μΩ (200A) | ≤700 μΩ (200A) | |
| Partial Discharge at 1.1 Ur | ≤20 pC | ≤20 pC |
| Weight | 12 kg | 12 kg |
| Protection Functions | 50 Definite Time Overcurrent Protection | 50 Definite Time Overcurrent Protection |
| 51 Inverse Time Overcurrent Protection | 51 Inverse Time Overcurrent Protection | |
| 79 Automatic Recloser | 79 Automatic Recloser | |
| Communication Interface | LoRa | LoRa |
| Communication Frequency | 860MHz-935MHz | 860MHz-935MHz |
| Communication Protocol | Proprietary Protocol | Proprietary Protocol |
| Communication Tools | Laptop, SingleTool Software, LoRa Transceiver | Laptop, SingleTool Software, LoRa Transceiver |
| Communication Distance | Local Communication, <1km | Local Communication, <1km |
| Remote Communication | Via Gateway | Via Gateway |
| Pollution Level | Class 4 | Class 4 |
Gateway Product Parameters
| Parameter | Value | Remarks |
| Input Voltage Range | 90-265VAC | |
| Frequency | 50/60Hz | |
| Average Power Consumption | ≤5W (PT) | Excluding Communication Module |
| Communication Interface | Serial Port and Ethernet Port | |
| Communication Protocol | Modbus IEC, 60870-5-101, IEC 60870-5-104, DNP3.0 LoRa Proprietary Protocol | |
| Communication Distance | Remote Communication | Within 4G Signal Coverage |
| Connection Method between Single-Phase Recloser and Gateway | LoRa | |
| Enclosure Material | 304 Stainless Steel, Thickness=2mm | |
| IP Protection Rating | IP66 | |
| Weight (kg) | 40 | |
| Dimensions (mm) | 730x411x255 | |
| Temperature Range | -40°C to 70°C | |
| Life | 10 Years |
