Intelligent design
Vacuum arc extinguishing, environmentally friendly and compact structure
Modular design
Flexible and rich solutions
Product Introduction
GSR-12 environmentally friendly intelligent gas insulated ring network switchgear is a green intelligent ring network switch introduced by our company with advanced environmentally friendly intelligent design concepts from Germany. equipment. This series of products uses dry gas as the insulating medium, sealing the primary main circuit of the switch cabinet in a gas box that uses advanced robot welding technology and undergoes strict helium mass spectrometry leak detection. It uses a mature and reliable vacuum arc extinguisher as the vacuum circuit breaker and The main breaking component of the load switch adopts a uniquely designed three-position isolating switch to ensure safe and reliable operation and maintenance of the distribution network.
The launch of the GSR series of environmentally friendly intelligent fully enclosed switchgear products truly fully meets the needs of customers such as State Grid and China Southern Power Grid Corporation for environmentally friendly ring main units and will lead the way. The future development trend of environmentally friendly ring main unit products.
Technical Parameters
| Project | Unit | Data | |
| Rated voltage | kV | 12 | |
| Rated power frequency withstand voltage ( Phase to phase, phase to ground) | kV | 42 | |
| Rated power frequency withstand voltage (fracture) | kV | 48 | |
| Rated lightning impulse withstand voltage (phase to phase, phase to ground) | kV | 75 | |
| Rated lightning impulse withstand voltage (fracture) | kV | 85 | |
| Rated busbar current | A | 630,1250 | |
| Circuit breaker parameters | Rated current | A | 630,1250 |
| Rated short-time withstand current | kA/S | 20,25/4 | |
| Rated short-circuit opening Breaking current | kA | 50,63 | |
| Rated peak withstand current | kA | 20, 25 | |
| Rated short-circuit closing current | kA | 50,63 | |
| Three-station isolation Switch parameters | Rated current | kA | 630,1250, |
| Rated short-time withstand current | kA/S | 20,25/4 | |
| Rated peak withstand current | kA | 50,63 | |
| Load switch | Rated current | A | 630 |
| Rated short-time resistance Current | kA/S | 20/4 | |
| Rated peak withstand current | kA | 50 | |
| Mechanical life | Circuit breaker | times | 10000 |
| load Switch | times | 10000 | |
| Isolating switch | times | 5000 | |
| Grounding switch | times | 5000 | |
| Rated operating sequence of circuit breaker | O-0.3s-CO-180s-CO | ||
| Annual leakage rate | %/year | 0.1 | |
| Drying air pressure (℃) | Mpa | 0.02 | |
| Minimum functional normal air pressure (gauge pressure at 20℃ ) | Mpa | 0 | |
| Withstand pressure level | Mpa | ≥0.09 | |
| Outline dimensions (width*depth*height) | mm | 420*850*2000 | |
| Cabinet protection Level | IP4X/2X | ||
Product size
| State Grid Standardized Dimensions | Width | Depth | Height | Height of instrument box | Cabinet combination |
| Busbar cabinet | 460mm | 770mm | 1640mm | 350mm | Side expansion/top expansion |
| Load switch cabinet | 460mm | 770mm | 1640mm | 350mm | Side expansion/top expansion |
| Circuit breaker cabinet | 460mm | 770mm | 1640mm | 350mm | Side expansion/top expansion |
| PT Cabinet | 600mm | 770mm | 1640mm | 350mm | Side expansion/top expansion |
| Metering cabinet | 810mm | 770mm | 1640mm | 350mm | Side expansion/top expansion |
| Note: The above plans can be used to produce a total box. The total box size adopts the single plan size * the number of total boxes. The maximum total box is 3 units | |||||
Features
Intelligent design - basic equipment of intelligent distribution network, maintenance-free fixed circuit breakers and load switch cabinet solutions, providing solutions for the upgrading and transformation of distribution network
Vacuum arc extinguishing, environmentally friendly and compact structure - using dry air protection, no SF6 greenhouse gas, safe and environmentally friendly. Slight positive pressure design prevents external moisture from entering the inside of the air box.
Modular design - small size, compact structure, safe and reliable busbar splicing, and convenient operation and maintenance. Standardized and modular cabinet design, high production efficiency.
Flexible and rich solutions - The combination of solutions is flexible and changeable to meet various power distribution plans of users.
Product usage environment
Ambient temperature:
Maximum temperature +50℃
Minimum temperature -40℃
Indoor ambient humidity:
Daily average relative humidity below 95%
Monthly average relative humidity below 90%
The altitude of the installation site is 5000m and below
Note: If the operating conditions are different from the above or applied to more Harsh environments, such as high altitude, low temperature, severe pollution, etc., need to be negotiated between the user and the manufacturer when ordering.
