1. Product overview
The full name of GGD switchgear is GGD indoor fixed low-voltage switchgear.
The design of GGD switchgear is a technological progress development project issued by the Ministry of Energy, and designed by the joint design and development team of low-voltage switchgear of the Ministry of Energy. The low-voltage withdrawable switchgear is now widely used by power users.
This equipment conforms to the International Electrotechnical Commission IEC439-1 "low-voltage switchgear and control equipment", China's GB7251-1997 "low-voltage switchgear and control equipment", China's national standards and machinery industry association JB/T9661-1999 standard content, and in line with CQC's CCC national compulsory certification standard.
2. Product use
As an AC 50Hz, rated current to 3150KA or less rated working voltage 380V system power distribution system power, lighting and power distribution equipment power conversion, distribution and control purposes.
3. Environmental conditions of product use
(1) The ambient air temperature is not higher than +40 °C and not lower than -5 °C. The average temperature within 24 hours must not be higher than +35°C.
(2) Indoor installation and use, the altitude of the place of use shall not exceed 2000M.
(3) The relative humidity of the surrounding air does not exceed 50% when the maximum temperature is +40 °C, and a large relative humidity is allowed at lower temperatures. (e.g. +20°C.)
90%) should take into account the effects that may occasionally occur due to temperature changes.
(4) The inclination of the equipment with the vertical plane does not exceed 5% when it is installed. The equipment should be installed in a place free of severe vibration and shock, and insufficient to corrode the electrical components
Location.
(5) When the user has special requirements, it can be negotiated with the manufacturer.
4. Model description:
This equipment is suitable for power plants, substations, large buildings, high-rise buildings, airports, hospitals, theaters, stadiums, ports, underground facilities, industrial and mining enterprises, etc. It is used for power conversion, distribution and control of power, lighting and power distribution equipment in AC 380V systems below 3150KA.
1. Flexible line scheme and high breaking capacity
2. Stable dynamic and thermal performance, strong practicability
3. Compact structure, flexible assembly, reasonable distribution, neat arrangement, less floor space
4. Firm structure, reliable connection, high degree of protection and complete functions
5. Safe and simple operation, good interchangeability performance, large short-term withstand current
6. Unique compatible form, can install domestic and imported various series of circuit breakers
Product structure features
1. The cabinet of GGD type AC low-voltage power distribution complete set of switchgear adopts the formation of general cabinet, the frame is partially welded with 8 cold-formed steel, and the frame parts and special supporting parts are produced and supplied by our factory to ensure the accuracy and quality of the cabinet.
2. The parts of the general cabinet are designed according to the module principle, and there are 20 module mounting holes, and the general coefficient is high. It is possible to realize pre-production in the factory. It not only shortens the production and manufacturing cycle, but also improves work efficiency.
3. GGD cabinet design fully consider the heat dissipation slot hole in the cabinet movement, when the electrical components in the cabinet heat, the heat rises, through the upper end slot hole, and the cold air is constantly replenished into the cabinet by the lower end slot hole, so that the sealed cabinet body from bottom to top to form a natural ventilation channel.
4. In accordance with the requirements of modern industrial production modeling design, the GGD cabinet adopts the golden ratio method to design the shape of the cabinet and the pision size of each part, so that the whole cabinet is beautiful and generous.
5. The cabinet door is connected with a shaft movable hinge, the structure is connected, and it is easy to install and disassemble. The folding edge of the door is embedded with a mountain-shaped rubber strip, and the embedded strip between the door and the frame has a certain compression stroke when the door is closed, which can prevent the door from colliding directly with the cabinet and also improve the protection level of the door.
6. The instrument door equipped with electrical components is connected to the frame with multi-stranded soft copper wire. The mounting parts in the cabinet are connected with knurled washers between the frame, and the whole cabinet constitutes a complete grounding protection system.
7. The surface of the cabinet body is treated by high-pressure electrostatic spraying process. It has strong adhesion and good texture. The whole cabinet is matte color, which avoids the dazzling effect and creates a more comfortable visual environment for the staff on duty.
8. The top cover of the cabinet body can be removed when needed, so that the assembly and adjustment of the main busbar on site, the four corners of the cabinet roof are equipped with lifting rings for lifting and shipment.
9. The protection level of the cabinet is IP30, and users can also choose between IP20~IP40 according to the requirements of the use environment.
