Low voltage metal clad switchgear is suitable for power generation and power supply systems with three-phase Ac frequency of 50Hz, rated working voltage of400v(690v) and rated current of4000A or less, and is used for power, power distribution,motor centralized control and capacitance compensation,widely used in power plants, petroleum, chemical industry, metallurgy, textile, high-rise buildings and other places.

Low voltage metal clad switchgear adopts a new manufacturing process, and each functional unit adopts modular design, so that low voltage metal clad switchgear is flexible and convenient, which can replace the GCS scheme and function on the market at present.

Standards

lEC60439-1
GB7251.1
JB/T 9661

Structure Description

The new hand-operated propulsion mechanism is applied to unit drawers, break-up operation and electric operation. it is amuti-circle labor-saving propulsion mode, which realizes easy, flexible and stable propulsion and removal of drawers. Threestation tool it has mechanical positioning and display, and has a "click" position sound prompt function, which makes it easyand fexible to promote the three-pole and four-pole drawers of 630A; Closing intelock has the function of re-locking andresetting, and the principle of propulsion mechanism and the technology of interlocking mechanism are advanced. Amongthem.the specialinterlocking mechanismfor electric operation can ensure that the drawer can be moved only by cutting ofthe switch, effectively preventing misoperation, and realizing that the electric operation mechanism can not take electricitywhen the rocking handle enters the mechanism (operational state) , and only when the rocking handle is pued out, theelectric operation mechanism can take electricity, which makes the empty opening and electric closing have high operaionsafety;
The new hand-pulled propulsion interlocking mechanism is applied to the unit drawer, which has the functions of threeposition locking, display, closing interlocking position auxiliary power supply, and switch re-button reset function;
The new small hand-pulled propulsion mechanism is applied to 1/2 and 1/4 drawer units, and has the functions of threeposition locking, display, closing interlock position auxiliary power supply, and switch re-buckling reset function;
The new push interlocking mechanism of drawer has mechanical displav of separation, test and connection position, andthe electrical contacts are synchronized with the position.