Solid insulated ring main unit SisGRM
Categories：Secondary distribution network products
Product Profile ：
SisGRM solid fully insulated ring network cabinet is an intelligent, environmentally friendly and full working condition equipment with high reliable operation safety. It is suitable for 12kV and 24kV secondary distribution network systems. It has the characteristics of full insulation, longevity noodles, maintenance free, small space occupation, safety and reliability, and is not affected by the environment. It is widely used in industrial and civil ring networks and terminal power supply. Especially suitable for secondary distribution stations, switch stations, industrial and mining enterprises, airports, railways, commercial areas, high-rise buildings, highways, subways, tunnels, especially in special environments such as coastal areas, low-lying areas, and high voltage.
| Project | Unit | Unit |
| Rated voltage (kV) | 12 | |
| Rated current (A) | 630 | |
| Rated frequency (Hz) | 50 | |
| Power frequency withstand voltage (kV) phase to phase and relative to ground fracture | 42/48 | |
| Lightning impulse withstand voltage (kV) phase to phase, relative to ground/fracture | 75/85 | |
| Rated short-circuit breaking current (kA) | 20 | |
| Rated cable charging breaking current (A) | 25 | 10 |
| Rated short-time withstand current (kA) | 20 | |
| Rated short-time endurance time (S) | 4 | |
| Rated peak withstand current (kA ) | 50 | |
| Rated short-time closing current (kA) | 50 | |
| Mechanical lifespan (secondary) Main switch/isolating switch | 10000/3000 | |
| Main circuit resistance (uQ) | ≤150 | |
| Internal arcing test AFLR level (kA/S) | 20/0.5 | |
| Partial discharge (pC) | ≤20 | |
| Protection level cabinet/switch | IP4X/IP67 | |
Comprehensive and specially designed to ensure that operators can safely operate different functional units; Simplicity means reliability and environmental friendliness. Because every component needs to be manufactured, it will have an impact on the environment. Choose environmentally friendly materials to provide society with a product that is green at all stages of its lifecycle. Modular design, flexible combination of solutions, easy for users to choose and use. Intelligent design, adopting advanced protection, control, and monitoring functions, makes equipment control more intelligent, status more transparent, and better serves power grid operation and equipment maintenance.
RELATED PRODUCT
Develop and produce intelligent digital switchgear systems for medium and low voltage distribution, providing a comprehensive solution for new power supply and distribution systems.
