Product Description:
GGD type AC low-voltage power distribution cabinet is suitable for the power distribution system of power users such as power plants, substations, factories and mines with AC 50Hz, rated working voltage 380V, and rated working current up to 6300A. It is used as power conversion, lighting and power distribution equipment. distribution and control purposes.
GGD AC low-voltage power distribution cabinet is a new type of low-voltage power distribution cabinet designed in accordance with the principles of safety, economy, rationality and reliability according to the requirements of the Ministry of Energy’s superiors, power users and design departments. The product has high breaking capacity, good dynamic and thermal stability, flexible electrical scheme, convenient combination,
Series, strong practicability, novel structure, high protection level, etc., can be used as a replacement product for low-voltage complete switchgear.
This product complies with: GB7251.12-2013 and GCS professional standards.
Item Meaning:
Application Condition:
Technical Parameters:
Auxiliary Circuit Scheme：
The design of the auxiliary circuit is divided into two parts: the power supply scheme and the power plant scheme. There is enough space in the GGD cabinet to install secondary components. At the same time, a special LMZ3D current transformer has been developed to meet the needs of power plants and special users. protection needs.
Considering the price ratio and the feasibility of substituting aluminum for copper for the main busbar, a single aluminum row busbar can be used when the rated current is 1500A and below, and a double copper row busbar can be used when the rated current is greater than 1500A. The manufacturer manufactures the prototype according to this regulation and passes the model Test, of course, the manufacturer can also replace the aluminum busbar with the copper busbar of the same carrying capacity according to the user’s requirements. The overlapping surfaces of the busbars are all treated with tinning process.
Electrical Component Selection：
(1). The GGD cabinet mainly adopts relatively advanced electrical components that have been mass-produced in China. At the same time, according to the principle of economy and rationality, some old products such as DZ10D and DZ20 are retained under the premise of fully considering the feasibility. Do not use obsolete products.
(2).HD13BX and HS13BX rotary operation knife switches are special components designed to meet the unique structure of the GGD cabinet. It changes the operation mode of the mechanism and retains the advantages of the old product. It is a utility model. Electrical components.
(3). If the design department chooses new electrical components with better performance and more advanced technology according to the needs of users, because the GGD cabinet has good installation flexibility, it will generally not cause difficulties in manufacturing and installation due to updating electrical components.
(4). In order to further improve the dynamic stability of the main circuit, a ZMJ-type combined busbar clamp and insulating support for the GGD cabinet are designed. The busbar clamp is made of high-strength, high flame-retardant PPO alloy material, which has high insulation strength, good self-extinguishing performance and unique structure. It can be easily combined into a single busbar clamp or double busbar clamp just by adjusting the building block. The insulating support is a sleeve-type molded structure with low cost and high strength, which solves the defect of insufficient creepage distance of old products.
Our company provides the following documents and accessories when supplying:
Optimized by Seraphinite Accelerator
