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Mobile WebSite1 GGD series switchgear
1.1 Use GGD type AC low-voltage power distribution cabinet is suitable for power distribution of 50Hz, rated working voltage 380V and rated working current 1000-3150A for power users such as substations, power plants, factories and mines, as power, lighting and distribution equipment. The use of electrical energy conversion, distribution and control.
GGD AC low-voltage power distribution cabinet is a new low-voltage power distribution cabinet designed according to the requirements of the Ministry of Energy, the majority of power users and design departments, in accordance with the principles of safety, economy, rationality and reliability. The product has the characteristics of high breaking capacity, good dynamic thermal stability, flexible electrical scheme, convenient combination, series, practicality, novel structure and high protection level. It can be used as a replacement for low-voltage switchgear.
1.2 Structural Features The cabinet of the 1GGD AC low-voltage power distribution cabinet adopts the general-purpose cabinet form. The frame is assembled by partial welding of 8MF cold-formed steel, and has 20-mode mounting holes with high universal coefficient. 2GGD cabinet fully considers the heat dissipation problem. There are different numbers of heat dissipation slots at the upper and lower ends of the cabinet. When the electrical components in the cabinet are heated, the heat rises and is discharged through the upper slot, and the cold air is continuously replenished into the cabinet by the lower slot, so that the sealed cabinet is self-contained. A natural air duct is formed from the bottom to the bottom for heat dissipation. According to the requirements of modern industrial product design, the 3GGD cabinet adopts the golden ratio method to design the shape of the cabinet and the division size of each part, so that the whole cabinet is beautiful and fresh. The top cover of the 4 cabinet can be removed when needed, which is convenient for the assembly and adjustment of the main busbar on the site. The four corners of the cabinet top are equipped with lifting rings for lifting and shipping. The protection level of the 5 cabinet is IP30, and the user can also choose between IP20 and IP40 according to the requirements of the environment.
2 GCK series switchgear
2.1 Purpose GCK low-voltage withdrawable switchgear (hereinafter referred to as switchgear) consists of two parts: power distribution center (PC) cabinet and motor control center (MCC). The device is suitable for AC 50 (60) HZ, rated working voltage less than or equal to 660V, rated current 4000A and below, as a power distribution equipment for power distribution, motor control and lighting.
GCK switchgear complies with IEC60439-1 "Low-voltage switchgear and control equipment", GB7251.1-1997 "Low-voltage switchgear and control equipment", GB/T14048.1-93 "Low-voltage switchgear and control equipment general" and other standards . It has high breaking capacity, good dynamic thermal stability, advanced and reasonable structure, flexible electrical scheme, series, versatility, arbitrary combination of various scheme units, and a cabinet. The number of circuits accommodated is large, saving floor space, high protection level, safe and reliable, and convenient maintenance.
2.2 Structural Features 1 The whole cabinet adopts the assembled structure, the modular hole is installed, the parts are versatile, the applicability is good, and the standardization degree is high. 2 The upper part of the cabinet is the busbar room, the front part is the electrical room, and the rear part is the cable entry and exit line room. There is steel plate or insulation board between each room for isolation to ensure safety. The door of the 3MCC cabinet drawer chamber is mechanically interlocked with the operation handle of the circuit breaker or the isolating switch, and the door can be opened only when the handle is in the breaking position. 4 The power switch, the tie switch and the drawer of the MCC cabinet have three positions: the on position, the test position, and the off position. 5 The top of the switchgear can be equipped with a busbar bridge according to the need of power.
3 GCS series switchgear
3.1 Application GCS type low-voltage withdrawable switchgear is used for power, distribution and motor centralized control in three-phase AC frequency 50Hz, rated working voltage 400V (690V), rated current 4000A and below. Capacitor compensation. Widely used in power plants, petroleum, chemical, metallurgy, textile, high-rise buildings and other places, can also be used in large power plants, petrochemical systems and other places with high degree of automation, requiring a computer interface. Execution standard: This product complies with the requirements of GB7251.1-1997 "Low-voltage switchgear and control equipment" and JB/T9661-1999 "Low-voltage withdrawable switchgear".
3.2 Structural Features 1 The frame adopts 8MF open-type steel. The main frame is equipped with mounting holes of Φ9.2mm with modulus of E=20mm and 100mm, which makes the frame assembly flexible and convenient. 2 The functional rooms of the switchgear are isolated from each other, and the compartments are divided into functional unit rooms, busbar rooms and cable rooms. The role of each chamber is relatively independent. 3 Horizontal busbars are arranged in a flat arrangement behind the cabinet to enhance the ability of the busbar to resist electric power, which is the basic measure to make the main circuit capable of high short-circuit strength. 4 cable compartment design makes it easy to access the cable up and down. The height of the 5 drawer height is 160mm. The drawer change only changes in height dimension, and its width and depth dimensions do not change. Drawers of the same functional unit have good interchangeability. The unit circuit is rated at 400A or below. The 6-drawer panel has obvious signs of position, combination, test, and extraction. The drawer unit is provided with a mechanical interlock. The 1 drawer unit is the main body, and has both withdrawing type and fixing property. It can be mixed and used at will. The protection level of the 7 cabinet is IP30 IP40, which can also be selected according to user needs.
