What is a 35kV gas-insulated switchgear, and how does it differ from other gas-insulated switchgears?
The 35kV gas-insulated switchgear from Qingchang Electric Power is the QLG series 40.5kV ring main unit. This type of gas-insulated switchgear is independently developed and produced by us, featuring a fully insulated and fully enclosed structure, which effectively prevents flooding and pollution, making it suitable for various harsh environments while ensuring reliable operation and the safety of operators. The 35kV gas-insulated switchgear uses SF6 gas as the insulating medium, and its compact design, excellent insulation performance, and miniaturization guarantee a wide range of application scenarios, while reducing maintenance work and lowering actual operating costs.
Currently, the main voltage levels of ring main units can be divided into 12kV, 24kV, and 40.5kV (i.e., 35kV), and the Qingchang Electric Power product series covers all three voltage levels. Different voltage ring main units have different optimal application scenarios. In comparison, the 35kV gas-insulated switchgear is more suitable for large public places with high voltage levels, especially new energy power generation stations, where the 35kV gas-insulated switchgear can be used on the high-voltage side of the inverter box in clean energy generation systems.
Different ring main units also vary in size. The dimensions (mm) of a single unit of the 35kV gas-insulated switchgear are 430 in width, 2135 in height, and 920 in depth, while the 12kV and 24kV units measure 700, 1500, and 770 respectively. Therefore, the 35kV gas-insulated switchgear occupies a smaller footprint, making it suitable for projects with space constraints.
Qingchang Electric Power's various products can also be paired with the 35kV gas-insulated switchgear to achieve more modular functions. The QBZ-IIA self-powered microcomputer protection device provides time overcurrent protection and ground protection functions; the QCD-3000 series distribution automation terminal (DTU) can perform fault detection, fault recording, information uploading, and the acceptance and execution of control commands, enabling remote monitoring and control; fault indicators can be installed on power lines to detect and indicate short circuits and single-phase grounding faults, helping to quickly identify fault sections. With the above equipment, the reliability and stability of power distribution can be enhanced while reducing the cost of manual equipment maintenance.
Beijing Qingchang Electric Technology Co., Ltd. - Expert in Ring Main Unit Manufacturing
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