Description：

The 40.5kV GIS equipment represents a new - generation medium - voltage switchgear, evolved from high - voltage 126kV GIS technology. It finds applications in power systems, power generation, rail transit, petrochemicals, metallurgy, mining, building materials, and other large industrial sectors.

Tailored for the retrofit of old air - insulated switchgears, this product undergoes specialized optimization. With a cabinet width ranging from 1200mm to 1680mm and a depth from 2800mm to 3200mm, it enables retrofitting without the need to redo foundations, replace cables, or reinforce load - bearing structures.

Features：

• Superior Insulation: Boasts a fully enclosed, gas - insulated structure. Eliminates issues like condensation, insulation deterioration - induced discharge, and contact overheating common in air - insulated switchgears.

• Enhanced Safety & Control: Features a three - position disconnector with an electric mechanism and one - key sequential control. Prevents risks such as manual operation jamming of mobile circuit breakers and avoids tipping - related injuries.

• Retrofit - Friendly: Ideal for retrofitting old air - insulated switchgears. No need to redo foundations, replace cables, or shut down the entire power station during the process.

• Advanced Circuit Breaker: Equipped with a self - blasting SF6 circuit breaker. Switching reactive loads won’t cause current interception. Comes with a C2 - level certification report for back - to - back capacitor banks from Xi'an High Voltage Apparatus Research Institute Co., Ltd.

• User - Adaptable Operation: Retains the operating habits of traditional switchgear products. Operation and maintenance personnel can quickly get accustomed to using this new product.

• Eco - Friendly Option: Aligns with green environmental protection trends. Offers product solutions with mixed gases.

Technical Parameters：

What is the internal structure of a GIS device？

The GIS conductive circuit is composed of several components. According to the working mode, it can generally be divided into: fixed contact (the electrical contact fastened with fasteners such as screws is called fixed contact, and the fixed contact has no relative movement in the working process. Such as the connection between the contact and the basin, etc.), contact contact (the electrical contact that can be separated in the working process is also called separable contact), sliding and rolling contact (in the working process, the contacts can slide or roll with each other, but the electrical contact that cannot be separated is called sliding and rolling contact. The intermediate contact of the switching appliance is the use of this electrical contact).