The GTXGN-12 solid fully-insulated enclosed ring main unit is a type of fully-insulated,fully-sealed and maintenance-free solid-insulated vacuum switchgear.This ring main unit features simple structure,flexible operation,reliable interlocking and easy installation.It is applicable to 50Hz,12kV power systems,and widely used in industrial and civil cable ring networks as well as distribution network terminal projects for power reception and distribution.It is especially suitable for urban residential area distribution,small substations,switching stations,cable branch boxes,box-type substations,industrial and mining enterprises,shopping malls,airports,metro systems,wind power generation projects,hospitals,stadiums,railways,tunnels and other scenarios.
The GTXGN-12 solid fully-insulated enclosed ring main unit is a type of fully-insulated,fully-sealed and maintenance-free solid-insulated vacuum switchgear.This ring main unit features simple structure,flexible operation,reliable interlocking and easy installation.It is applicable to 50Hz,12kV power systems,and widely used in industrial and civil cable ring networks as well as distribution network terminal projects for power reception and distribution.It is especially suitable for urban residential area distribution,small substations,switching stations,cable branch boxes,box-type substations,industrial and mining enterprises,shopping malls,airports,metro systems,wind power generation projects,hospitals,stadiums,railways,tunnels and other scenarios.
| Project | Unit | Data | |||
|---|---|---|---|---|---|
| Rated Voltage | KV | 12 | |||
| Rated Frequency | Hz | 50 | |||
| Rated Current | A | 630 | 1250 | ||
| Rated Insulation Level | Power Frequency Withstand Voltage | Break | KV | 48 | |
| Phase-to-Phase | KV | 42 | |||
| Phase-to-Earth | KV | 42 | |||
| Lightning Impulse Withstand Voltage | Break | KV | 85 | ||
| Phase-to-Phase | KV | 75 | |||
| Phase-to-Earth | KV | 75 | |||
| Rated Short-Circuit Breaking Current (1S) | KA | 25 | 31.5 | ||
| Rated Short-Time Withstand Current (4s) | KA | 25 | 31.5 | ||
| Rated Peak Withstand Current (1p) | KA | 63 | 80 | ||
| Rated Short-Circuit Making Current(Peak)(1ma) | KA | 63 | 80 | ||
| Enclosure Ingress Protection (IP) Rating | IP4X | ||||
| Operation Mode | Spring-Operated | ||||
Model Description
Operating Conditions
Environmental Temperature: -45℃ ~ +45℃
Humidity: Maximum Average Relative Humidity, Daily Average ≤ 95%, Monthly Average ≤ 90%
Altitude: ≤ 4000 m
Seismic Resistance: Grade 8
Ingress Protection (IP) Rating: Live Part Sealing IP67, Fuse Cartridge IP67, Switchgear Enclosure IP4X
Dimension
| Model | Width (mm) | Depth (mm) | Height (mm) |
| Load Switch PT Cabinet (CPT) | 500 | 950 | 1650 |
| Circuit Breaker Cabinet (VB) | 400 | 950 | 1650 |
| Circuit Breaker Cabinet (V) | 400 | 950 | 1650 |
| Circuit Breaker Bus Tie Cabinet (VZ) | 400 | 950 | 1650 |
| Busbar Lifting Cabinet (G) | 400 | 950 | 1650 |
| Switch-Fuse Combination Cabinet (F) | 500 | 950 | 1650 |
