Supplier Details
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GGD Series Fixed Type Low Voltage Switchgear can be widely used in power distribution system with AC 50Hz and rated voltage of 400V, shch as power plants, substations, factories and so on. It usually realizes power conversion, distribution and control of power, lighting and distribution equipment.
This product has the characteristics of high breaking capacity, good dynamic and thermal stability, reasonable structure, strong applicability and high protection level, and can be used as an updated product.
This product meets the standards of IEC60439, GB7251.1, GB7251.12 and others.
Normal Operating Conditions
1. Ambient Temperature: -5℃~+40℃. The average temperature is not higher than +35℃ within 24 hours.
2. Clean air is required. The relative air humidity does not exceed 50% at +40℃, and higher relative humidity is allowed at lower temperature.
3. Altitude ≤2000m.
4. This product is suitable for transportation and storage at -25℃ to +55℃, which is allowed to reach +70℃ in a short time (less than 24 hours). Under extreme temperature, the device should not be damaged irretrievably and it should work normally under normal conditions.
Note: The special written instructions are required when ordering beyond the NORMAL OPERATING CONDITIONS.
Model Definition
Model Definition
Product Features
GGD switchgear adopts assembled structure and all structural parts are firmly connected by screws. The frame, door and panel are painted with polyester orange-figured paint after phosphating treatment, and all parts without painting are galvanized and passivated. The protection level of the shell is IP30, and the protection level of IP20~IP40 can also be selected according to the requirements of the installation sites. This switchgear is also designed with a good natural ventilation system.
This product allows a variety methods of incoming line to meet the needs of various engineering designs. At the same time, a fixed position is reserved in the cabinet to install relay protection devices and automatic devices for special users such as power plants.
This switchgear has the characteristics of high breaking capacity, good dynamic and thermal stability and flexible combination of electrical schemes.
Electric Performance
Main Busbar
Given the price and the feasibility of replacing copper with aluminum, the manufacturers generally adopt single aluminum busbar when the rated current is below 1500A, otherwise double copper busbar will be adopted. The manufacturer can also replace the aluminum busbar with the copper busbar as per the user's requirements. The overlapping surfaces of busbars are all treated by tinning process.
Electrical Components
1. GGD cabinet mainly adopts advanced electrical components, such as ME, DZ20, DW15, etc. According to the principle of economy and rationality, some usable older generation (non-obsolete) components are reserved on the premise of fully considering the feasibility.
2. HD13BX and HS13BX rotary operation switches are special components designed to match the unique structure of GGD switchgear, which change the mechanical operation mode and are a kind of practical and neotype electrical components.
3. GGD switchgear has good installation flexibility, so it generally does not bring difficulties to manufacture and install because of updating electrical components.
4. In order to further improve the dynamic stability of the main circuit, we designed ZMJ combined busbar clamp and insulation support for GGD switchgear. The busbar clamp is made of high-strength and high flame retardant PP0 alloy material, which has high insulation strength, good self-extinguishing performance and unique structure, and can be easily combined into a single busbar clamp or a double busbar clamp. The insulating support is a simple molded structure with low cost and high strength, which solves the defect of insufficient creepage distance of the older generation products.
Installation and Use
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