Self-Powered Single Phase Smart Recloser Up to 38kV
- Model Number:
- RFS
- Brand:
- SMICO
- Standard:
- IEC 60870-5-104
- Voltage:
- 15KV 27KV 38KV
Description
Fuse-free, self-powered pole-mounted single phase recloser up to 38kV. Compact smart auto-recloser replaces traditional fuse cutouts—zero PT, zero fuse link, low maintenance.
Key attributes
| Brand | SMICO |
| Series | RFS |
| Rated Voltage | 15kV / 27kV / 38kV |
| Rated Current | 200A / 250A / 320A (Optional) |
| Interrupting Current | 8kA / 6.3kA (Optional) |
| Mechanical Life | >10,000 operations |
Description
The SMICO RFS Type single phase auto-recloser is a pole-mounted, self-powered smart recloser engineered for medium-voltage overhead networks up to 38kV. With a fully integrated fuse-free, PT-free, control-box-free design, the RFS replaces conventional expulsion fuse cutouts and sectionalizers—delivering automatic fault clearing and power restoration without manual fuse replacement.
Built on vacuum interruption and line-energy harvesting, the RFS harvests operating power directly from the conductor current, eliminating auxiliary power wiring, external potential transformers, and separate controller cabinets. Its lightweight, compact body installs into existing fuse-cutout mounting interfaces, making it ideal for rural laterals, branch feeders, renewable interconnection points, and smart-grid distribution automation.
When a transient fault occurs—lightning, tree contact, animal bridging—the RFS trips and automatically recloses according to programmable sequences, keeping the main feeder energized and reducing SAIDI/SAIFI. For permanent faults, it locks out and isolates only the affected branch.
Key Advantages
- Self-powered architecture – line-current energy harvesting with backup storage, no external PT
- Fuse-free operation – no consumable fuse links, no crew dispatch for replacement
- Up to 38kV rating – covers 15kV / 27kV / 38kV distribution classes
- Compact & lightweight – fast pole-top installation, lower labor and lifting cost
- Smart protection – overcurrent, earth fault, inrush restraint, configurable reclose logic
- Grid-ready – optional RTU/SCADA communication (DNP3, Modbus, IEC 60870-5-104)
- Harsh-environment proven – sealed insulation, wide temperature range, IP-rated enclosure
Key Electrical Specifications
| Item | Specification |
|---|---|
| Rated Voltage | 15kV / 27kV / 38kV |
| Rated Frequency | 50/60 Hz |
| Rated Current | 200A / 250A / 320A (Optional) |
| Interrupting Current | 8kA / 6.3kA (Optional) |
| Mechanical Life | >10,000 operations |
| Ingress Protection | IP65 |
| Control Power Supply | 1. Built-in CT energy harvesting or battery (main body) 2. PT energy harvesting, solar panel or battery (central control enclosure) |
Typical Applications
- Single-phase overhead branch lines and laterals
- Rural & remote distribution feeders
- Fuse cutout modernization programs
- Solar / BESS / DG connection points
- Utility pole-top automation without control cabinet
