Shielded Feeder Terminal Unit
Product Description
Mainly applied to pole-mounted switchgear on 10kV distribution lines. The Feeder Terminal Unit (FTU) primarily monitors 10kV power line operations and switchgear status, while handling fault detection and switch control. Meanwhile, it leverages diverse Feeder Automation (FA) strategies—including centralized, adaptive localized, voltage-time, and voltage-current-time modes—to reliably detect and isolate faults, while restoring power supply to non-fault sectors.
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
Shielded standardized structure, fully meeting State Grid standards.
Fully modular design with standardized internal wire harness connections.
Dual-zone redundant backup and self-recovery technology for OS, critical programs, and parameters.Single-phase grounding fault detection accuracy of over 90% in distribution networks.
Diverse Communication Modes: Supports fiber-optic Ethernet and 4G/5G wireless. Communications can be encrypted via both software and hardware, with a built-in State Grid professional security chip.
Status Awareness Technology: Temperature detection & control, positioning, etc.
Equipped with remote O&M capabilities under communication-enabled conditions.
Shielded Feeder Terminal Unit
HXD837-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 |
