Box-Type Feeder Terminal Unit
Product Description
Mainly used for data acquisition, control, monitoring, and protection of outdoor pole-mounted circuit breakers or load break switches. It enables the “Three-Remote” functions (Telemetering, Telesignaling, and Telecontrol) for pole-mounted switchgear. Concurrently, it communicates with the distribution automation master station to transmit collected information via wireless or fiber-optic networks, executing master station regulations and control commands for the feeder and its terminal devices. It is typically installed directly on feeders.
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Product Advantages
Compact design with enclosure dimensions less than 520×350×200mm.
Modular design with flexible configuration, supporting single-board upgrades.
Dual-zone redundant backup and self-recovery technology for OS, critical programs, and parameters.
Status Awareness Technology: Temperature detection & control, positioning, etc.
Status Awareness Technology: Temperature detection & control, positioning, etc.
Equipped with remote O&M capabilities under communication-enabled conditions.
Box-Type Feeder Terminal Unit
HXD833-F30
Technical Specifications
| Parameter Name | Parameter | Remarks |
| Power Source | DC24V | |
| Communication Power Supply | DC24V/DC48V | |
| Communication Channels | At least 3 communication channels. | |
| Telemetry | Collects 2 line voltages, three-phase protection/measurement current, zero-sequence current, zero-sequence voltage | |
| Output Circuits | 2 remote control open/close circuits | |
| Communication Interfaces | 1 Bluetooth interface; 1 hot-swappable 4G/5G module interface; 2 RS232 communication interfaces; 2 Ethernet communication interfaces; 1 serial maintenance port; | |
| Metering Function | Built-in line loss metering | |
| Protection Functions | Three-stage overcurrent protection, two-stage zero-sequence current protection, short-circuit fault alarm, small current grounding line selection, three-shot auto-reclosing, non-interrupting current blocking, undervoltage alarm, zero-sequence overvoltage alarm, PT disconnection alarm, post-acceleration protection | |
| Time Synchronization | GPS/Beidou time synchronization | |
| Connection Type | Circular aviation connector (6-pin PT, 6-pin anti-open circuit current, 14-pin digital input/output) | Connected to the 26-pin aviation connector of the pole-mounted switch |
| Backup Power Supply | Rated voltage DC24V, single battery capacity ≥7Ah, service life ≥3 years, capable of completing "open-close-open" operation and maintaining operation of the distribution terminal and communication module for at least 4 hours. | Optional 12Ah or other capacity based on user requirements |
| IP Rating | IP65 |
