Product details

overview

The GN-SRM-12 gas insulated metal switchgear developed by Guineng Electric has passed the type test of the National High Voltage Electrical Testing Center. The product is widely used in 12KV/6.3KV distribution systems and is a switch product for various urban and rural users' power transformation and distribution systems.

The switchgear adopts a modular unit mode, which can be combined according to different purposes; There are two main types of fixed unit combinations and expandable units, which meet the requirements of various substations for compact switchgear

The need for active use. GN-SRM-12 gas insulated metal switchgear is a completely sealed system, with its charged components and switches enclosed within a stainless steel body. The entire switch device is not affected by external environmental conditions, ensuring operational reliability and personal safety. And it has achieved maintenance free operation. By selecting expandable busbars, any combination can be achieved to achieve full modularity. The expansion of busbar safety insulation and shielding ensures reliability and safety. GN-SRM-12 gas insulated metal switchgear can also provide TV based automation solutions, forming the concept of intelligent switches and minimizing on-site installation and debugging workload.

GN-SRM-12 gas insulated metal switchgear is divided into non expandable standard configuration and expandable standard configuration. Due to its combination of full and half modules and self scalability, it has special flexibility.

GN-SRM-12 gas insulated metal switchgear complies with GB standards. Operate under indoor conditions (20 ℃). The demand is increasing day by day, gradually showing a market relationship of supply and demand shortage. Therefore, this system has broad market prospects.

main features 

◆ Operational safety

By implementing the following security measures, we can provide users with special security guarantees

◇ Integrated three station load switch

The circuit breaker uses a load switch instead of an isolation switch, which is safer and more reliable

◇ One side fully enclosed design provides protection against external contact

◇ Mechanical interlocking that meets the five prevention requirements

The live display can provide live indication for incoming and outgoing lines

◆ Reliable operation ◇ Fully enclosed design, all 10KV switches and busbar live parts are sealed in a 3mm stainless steel welded gas box; Equipped with silicone rubber cable plugs, the cable head is fully insulated and sealed to prevent external environmental factors such as dust, moisture, and small animals from affecting it

◇ Spring energy storage operating mechanism, which can be manually or electrically operated

Panel simulation line diagram provides switch position indication

The cabinet is made of galvanized sheet metal, with surface electrostatic spraying to enhance corrosion resistance

◇ Safety pressure range of SF6 gas inside the pressure gauge monitoring box

◇economic

◇ Maintenance free

◇ Highly reliable

Flexible plan

◇ Multiple entry methods, capable of achieving left, right, up or forward lines

◇ Multiple combination methods, allowing for arbitrary combinations between units

◇ Using insulated busbars, it can achieve front and rear parallel cabinets or left and right parallel cabinets

◇ The cost calculation scheme is flexible

Widely used

◇ The feeder line has a large capacity and occupies a small area, suitable for various application needs

The entire switch device is completely unaffected by external environmental conditions, ensuring normal operation even in extreme situations such as short-term water immersion

performance index

SF6 gas pressure

◇ Absolute pressure of 1.4 bar at 20 ℃

◇ Annual gas leakage rate of 0.2%/year

◇ Protection level IP67

◇ Stainless steel thickness of 3.0mm in the air chamber

a bus or bus bar

◇ 400mm copper busbar inside the switchgear ◇ 150mm copper grounding busbar inside the switchgear

◆ Normal operating environment conditions

◇ Maximum temperature 40 ℃

◇ Minimum temperature -50 ℃

◇ Maximum average relative temperature ≤ 95%

◇ Altitude ≤ 2000 meters

◆ Meet the standards

GB/T11022GB3906GBI985

GB3309GB16926GB38041GBI984

IEC60056IEC60129IEC60256

colour

IEC60298IEC60420IEC60694

◇ Front panel of switchgear RAL7012 ◇ Side panel and front cover plate of cable room RAL7035