Low-voltage switchgear is used for power users such as power plants, substations, factories and mining enterprises, etc. It is used for power conversion, distribution and control of power, lighting and distribution equipment as the power distribution system with rated working current of 50-60hz to 3150A. Low-voltage switchgear is divided into: GGD low-voltage switchgear series, GCK low-voltage switchgear series, GCS low-voltage switchgear series and MNS low-voltage switchgear series. GGD low-voltage switchgear series of products and equipment are explained by zhongyi electric.
1.GGD low-voltage switchgear - purpose
GGD type ac low-voltage distribution cabinet is suitable for power distribution system with ac 50Hz, rated working voltage 380V and rated working current 1000-3150a of power supply, lighting and distribution equipment for power conversion, distribution and control.
GGD type ac low-voltage distribution cabinet is a new type of low-voltage distribution cabinet designed according to the requirements of the department of energy, the vast number of power users and design departments in accordance with the principles of safety, economy, rationality and reliability. The products have the characteristics of high breaking ability, good dynamic and thermal stability, flexible electrical scheme, convenient combination, series, strong practicability, novel structure and high protection level. It can be used as the replacement of low-voltage switchgear assembly.
2. GGD low-voltage switchgear - structural features
GGD type ac low-voltage power distribution cabinet adopts the general cabinet form, the framework is made of 8MF cold-formed steel with local welding assembly, and has the installation hole of 20 molds, with high general coefficient.
GGD cabinet takes heat dissipation into full consideration. In cabinet put oneself in another's position up and down both ends all have different quantity to come loose hot slot hole, when electric equipment element inside cabinet gives off heat, quantity of heat rises, discharge through upper end slot hole, and cold air is added by lower end slot hole into cabinet ceaselessly, make sealed cabinet put oneself in another's position form a natural ventilation from bottom to top, achieve come loose hot goal.
GGD cabinet according to the requirements of modern industrial product modeling design, adopts the method of golden ratio to design the appearance of cabinet body and the segmentation size of each part, so as to make the whole cabinet beautiful and generous, with a new look. The top cover of cabinet put oneself in another's position can be removed when need, facilitate spot advocate the assembly of female line and adjust, the 4 corners of ark top install condole ring, use at hoisting and loading. The protection level of the cabinet is IP30, and users can choose between IP20 and IP40 according to the requirements of the environment.
3.GGD low-voltage switchgear - operating conditions
Ambient temperature of GGD tank shall not be higher than +40℃, not lower than -5℃; When the product is installed and used, the altitude of the use site shall not exceed 2000M; The relative humidity of surrounding air should not be more than 90% (+25℃); The equipment shall be installed in a place free from violent vibration and shock, and in a place where there is insufficient corrosion of electrical components; The relative humidity of the surrounding air should not exceed 5% at the maximum temperature of 40 degrees Celsius, and a large relative temperature is allowed at the lower temperature. The influence of condensation may occur accidentally due to the change of temperature should be considered. The equipment shall be installed where there is no severe vibration or impact and where the corrosion of electrical components is insufficient; Customers with special requirements can negotiate with the manufacturer to solve.
4. GGD low-voltage switchgear - instructions for ordering
A. full model of products (including main circuit scheme and auxiliary circuit scheme);
B. Main circuit system combination sequence diagram and plane layout diagram;
C. Electrical schematic diagram of auxiliary circuit;
D. List of components inside the cabinet;
E. If users have special requirements, they shall negotiate with the manufacturer to solve them;
F. The ordering unit shall specify the receiving unit, the settlement unit, the method of settlement arrival and the method of taking delivery;
G. If bus bridge is needed, please specify.
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