GCS low-voltage withdrawable switchgear(hereinafter referred to as the switchgear) is applicable to the power distribution systems in power plants, petroleum, chemical industry, metallurgy, textile, high-rise building construction and other industries. It is a complete set of low-voltage power distribution equipment used for power distribution, motor centralized control and reactive power compensation in power generation and supply systems with the three-phase AC frequency of 50 HZ, rated working voltage of 400V or below, 690V, and the rated current of 5000A or less in large-sized power plants, petrochemical systems and other places with high degree of automation requiring accessibility to computers.