Solid Insulated Ring Main Unit
HXGN☐-12
A new-generation, eco-friendly, and fully-insulated solid insulated switchgear suitable for various power scenarios, featuring fully solid-encapsulated live parts, partial discharge of less than 20pC, vacuum arc extinguishing, and the capability to realize distribution network automation.
Product Description
All conductive parts inside the switchgear are solid-encapsulated within solid insulating materials, delivering excellent insulation performance with an overall partial discharge of less than 20pC. It is a new type of eco-friendly, fully-insulated, and fully-enclosed metal-enclosed switchgear. The main switch utilizes vacuum arc extinguishing, and adjacent enclosures are connected via insulated busbars. Product configurations include circuit breaker units, load break switch units, load break switch-fuse combination units, PT units, and metering units, which can be configured with protection devices to achieve distribution network automation. It is suitable for power distribution scenarios in small secondary distribution substations, switching stations, residential communities, enterprises, railways, and other power systems.
Product Advantages
Solid Insulated Ring Main Unit
Technical Specifications
| Technical Parameters | Item | Value | ||
| 12kV Load Switch | 12kV Combined Apparatus | 12kV Circuit Breaker | ||
| Rated Voltage kV | 12 | 12 | 12 | |
| Rated Current A | 630 | 630 | 630 | |
| Rated Frequency Hz | 50 | 50 | 50 | |
| Rated Short-Circuit Breaking Current kA | 31.5 | 25 | ||
| Rated Transfer Current | 3150 | |||
| Rated Power-Frequency Withstand Voltage 1min | Phase-to-Ground/Phase-to-Phase kV | 42 | 42 | 42 |
| Across Open Contacts kV | 48 | 48 | 48 | |
| Rated Lightning Impulse Withstand Voltage Peak | Phase-to-Ground/Phase-to-Phase kV | 75 | 75 | 75 |
| Across Open Contacts kV | 85 | 85 | 85 | |
| Rated Short-Time Withstand Current and Duration kA s | 20/4 | 25/4 | ||
| Rated Peak Withstand Current kA | 50 | 63 | ||
| Rated Short-Circuit Making Current kA | 50 | 63 | ||
| Mechanical Life times | 5000 | 5000 | 20000 |
DTU Technical Specifications
| Item | Configuration |
| Power Supply | AC DC220V Backup Power Supply |
| AC DC110V Backup Power Supply | |
| Maximum Monitoring Capacity | Digital Input Channels 105 |
| AC Analog Input Channels 56 | |
| DC Analog Input Channels 2 | |
| Digital Output Channels 34 | |
| Line/Switch Monitoring Quantity 16 | |
| Communication Interfaces | 2 Ethernet Ports, 4 RS232/RS485 Ports |
| DLT634.5101, DLT634.5104, ModBUS, DNP3.0 | |
| Relay Protection | Phase-to-Phase Short Circuit and Single-Phase Ground Fault Monitoring |
| Three-Stage Three-Phase Overcurrent and Two-Stage Zero-Sequence Overcurrent, Reclosing, Post-Acceleration | |
| Fault Recording | Sampling Frequency 6.4kHz, 1128 Points/Cycle |
| Configurable Number of Cycles, Comtrade 1999 Standard Format | |
| Historical Data Storage | Sequence of Events Recording, Remote Control Operation Records |
| Load Curves, Fixed-Point and Extreme Value Records | |
| Fault Recording Records | |
| Information Security | Dedicated Security Chip Hardware Encryption |
| X.509 Standard Format SM2 Digital Certificate | |
| Performance Indicators | Analog Accuracy: Voltage/Current 0.5%, Others 1% |
| Remote Signal Resolution 2ms |
Product Dimensions and Packaging
| Name | Solid Insulated Ring Main Unit (Three-Compartment Assembly Example) |
| Equipment Dimensions | 1500 × 1100 × 2000 |
| Packaging Method | Wood-Steel Edge Box |
| Packaging Dimensions (mm) | 1900 × 1500 × 2200 |
| Packaging Weight (kg) | 650 |
| Quantity per 20ft Container | 3 |
| Length × Width × Height 5.89 × 2.39 × 2.69 m | |
| Quantity per 40ft Container | 7 |
| Length × Width × Height 12.03 × 2.35 × 2.69 m |
