Product overview
  72.5/126/145 type GIS is composed of standard modules through same sized flanged joint, which can  meet the demand for substation optimization design through the flexible combination between modules. It saves space and conforms to technical requests.
    This product can be applied to power system, power generation, rail transportation, petrochemical, metallurgy, mining, building materials and other large industrial consumer.

Features and advantages of the product

•  Special arc extinguish chamber design with spring operation mechanism;

• The structure is tight and the minimum interval width can reach 800mm;

• Full three phase encapsulated；

• Self-developed 3 position isolated grounding switch；

• Completely self-research and development with high starting point and large investment;

• Inspected　to be qualified by KEMA High level of parameters, advanced structural design;

• Insulation level is higher than IEC and GB standards;

• Self-blast combined interrupter, 3-position disconnector and earthing switch, spring operating mechanism;

• Double sealing ring structure;

• Minimum area;Compact and standardized module design with minimum intervals width 800mm;

• It is applied to cold, humid, salt fog, coastal, high altitude areas;

• Spring operating mechanism base processed by  Four Axis Milling CNC Machining Center imported from DMG, German;

• Basin-type produced by  vacuum epoxy casting Production line imported from Germany  Hubers;

Technical Parameter

What are the characteristics of GIS equipment？

Due to the excellent insulation performance, arc extinguishing performance and stability performance of SF6 gas, GIS equipment has the advantages of small footprint, strong arc extinguishing ability and high reliability, but the insulation ability of SF6 gas is greatly affected by the uniformity of the electric field, and it is easy to have insulation abnormalities when there are tips or foreign objects inside the GIS.

GIS equipment adopts a fully enclosed structure, which brings the advantages of internal components without environmental interference, long maintenance cycle, low maintenance workload, low electromagnetic interference, etc., while also having problems such as complex single overhaul work and relatively poor detection methods, and when the closed structure is eroded and damaged by the external environment, it will further bring a series of problems such as water ingress and air leakage.