QGG type solid insulated switchgear

Beijing Qingchang combines the product development experience of air-insulated and gas-insulated switchgear to develop the QGG series of solid-insulated switchgear. The QGG series of solid-insulated switchgear has a high level of operational safety and has been recognized as a high-tech achievement by the Beijing Municipal Science and Technology Commission. After years of dedicated research and iterative innovation, it has successfully developed to the IV generation of products, with each series having its own characteristics, including single-phase switch solutions, three-phase integrated switch solutions, and compact solutions with shielding, fully meeting various user needs.

Product Introduction

Beijing Qingchang has achieved breakthrough innovation through technological integration, combining the product development experience of air-insulated switchgear and gas-insulated switchgear to develop the QGG series solid insulated switchgear, which is a significant breakthrough in the field of medium voltage technology. The QGG series solid insulated switchgear has been recognized as a high-tech achievement by the Beijing Municipal Science and Technology Commission, featuring a high level of operational safety. As a core unit of the distribution network, it is applied in the distribution network. It uses a vacuum arc extinguishing chamber for arc extinction, and the high-voltage live parts are molded with solid insulating materials (epoxy resin materials) with excellent insulating properties, eliminating the gas chamber with a pressure of 0.03Mpa, achieving full insulation, full sealing, and maintenance-free.

The QGG series solid insulated switchgear is equipped with an intelligent online monitoring system that monitors the status of key parts inside the switchgear in real-time, obtains status parameters, and automatically assesses the likelihood of faults occurring, providing strong assurance for the normal operation of the switchgear and the entire distribution line.

After years of dedicated research and development, the solid insulated switchgear has formed the IV series products, each series having its own characteristics. The QGG series solid insulated switchgear, due to its significant technical advantages, is widely adopted by many provincial power grid companies in China and is also exported overseas.

Typical Applications

The QGG series solid insulated switchgear is a green and environmentally friendly solid insulated switchgear that has undergone type testing and is suitable for various distribution systems, including under extremely harsh environmental conditions, such as:

• Substations

User substations, substations and switching stations for power systems and public facilities.

• Industrial Field

Wind power stations, high-rise buildings, airports, open-pit coal mines, subway stations, sewage treatment plants, port facilities, traction power supply systems, automotive industry, petroleum industry, chemical industry, cement industry, thermal power plants, textile industry, paper industry, and emergency power supply systems.

Standards

QGGThe QGG series solid insulated switchgear meets the following standards and specifications:

GB 1984-2003:High Voltage AC Circuit Breakers

GB 3906-2006: 3.6kV~40.5kVAC Metal-Enclosed Switchgear and Controlgear

GB 1985-2004:High Voltage AC Isolators and Earthing Switches

GB 3804-2004: 3.6KV~40.5KVHigh Voltage AC Load Switches

GB 16926-2009:High Voltage AC Load Switch-Fuse Combination Apparatus

GB/T 11022-1999:Common Technical Requirements for High Voltage Switchgear and Controlgear Standards IEC 60529: Degree of Protection Provided by Enclosures (IP Code)

DL/T 1586-2016: 12kVSolid Insulated Metal-Enclosed Switchgear and Controlgear

• qgg