Low pressure part
1. models GGD, gck, GCS and MnS.
Tectonic characteristics
The GGD box of AC low-voltage distribution cabinet is a universal box, which is assembled by local welding of 8MF cold-formed steel. It has 20 die mounting holes and has a high universal coefficient. GGD cabinet has enough consideration for heat dissipation. There are different numbers of cooling slots at the upper and lower ends of the chassis. When the electrical components of the chassis generate heat, the heat will be discharged through the upper slot, and cold air will continuously enter the chassis from the lower slot, so that the sealed chassis will form a natural ventilation duct from bottom to top, thus achieving the purpose of cooling.
According to the requirements of modern industrial product modeling design, GGD cabinet adopts the method of golden ratio to design the shape of the cabinet and the division degree of each component, so that the whole cabinet is beautiful and elegant, with a new look. The top cover of the cabinet can be removed when necessary to facilitate the assembly and adjustment of the main bus on site, and rings are installed at the four corners of the cabinet top for hoisting and transportation. The protection level of the cabinet is IP30, and users can also choose between IP20IP40 according to environmental requirements.
Tectonic characteristics
The whole cabinet adopts combined structure, with modular holes installed, which has strong universality, good applicability and high standardization. The upper part of the cabinet is a busbar room, the front part is an electrical room, and the rear part is a cable inlet and outlet room. Each room is separated by steel plates or insulating plates to ensure stability.
The door of the drawer compartment of MCC cabinet is mechanically interlocked with the operating handle of the circuit breaker or disconnector. Only when the handle is in the off position can the door be opened. There are three positions in the drawer of power switch, contact switch and MCC cabinet: connection position, test position and disconnection position.
Bus bridge can be installed at the top of switchgear according to power demand.
The frame is made of 8MF type open section steel, and the installation module on the main frame is E=20mm, and the installation hole is 100mmΦ9.2mm, which makes the frame assembly flexible and convenient.
Each function room of switchgear is isolated from each other, and its function room is divided into unit room, bus room and cable room. The function of the room is relatively independent. The transverse bus is arranged horizontally at the back of the box to improve the anti-electric ability of the bus, which is the basic measure to make the main circuit have high short-circuit strength. The design of cable compartment makes it very convenient for cables to go up and down. The modulus of drawer height is 160 mm. What changes the drawer is only the height, but the width and depth have not changed. Drawers with the same functional unit have good conversion performance. The rated current is 400A or less. There are obvious position marks on the drawer panel, such as opening, closing, testing and drawing. The utility model has a mechanical interlocking device. A drawer unit is the main body, which has the characteristics of combining drawers and fixing, and can be mixed and combined for arbitrary use.
The protection level of the box is IP30IP40, and it can also be selected according to the needs of users.
Tectonic characteristics
Revolutionizing Functionality: Sealed L-Handle Design
Introducing the Sealed L-Handle Design, a groundbreaking innovation in engineering and ergonomics. This unique design combines strength with efficiency, featuring a watertight seal to protect against external elements while providing a comfortable grip. The L-shape allows for better leverage and reduced strain on users, enhancing productivity in various industries. A testament to seamless functionality and user-centric thinking, the Sealed L-Handle is set to redefine handling standards.
The frame of MNS low-voltage switchgear is a combined structure, and its basic skeleton is composed of C-shaped steel. All structural parts of the cabinet frame are galvanized, which are firmly connected to the basic cabinet frame by self-tapping locking screws or 8.8-grade hexagon bolts, and are combined with the doors, partitions, mounting brackets, bus functional units and other parts of the corresponding modification scheme to form an integral switch cabinet. The internal dimensions, component dimensions and compartment dimensions of the switch box are designed in a modular way (E=25mm).
Each cabinet of MNS combined low-voltage switchgear is divided into three rooms, namely, horizontal bus room (behind the cabinet), small drawer room (in front of the cabinet) and cable room (under or in front of the cabinet). The room of the utility model is separated by steel plates or high-strength flame-retardant plastic functional plates, and the upper and lower drawers are separated by metal plates with vent holes, which can comprehensively prevent accidents caused by arcing caused by the failure of switching elements or short circuit between bus bars and other lines.
The structural design of MNS low-voltage switchgear can meet the requirements of various wiring schemes: up, down, up and down four wiring modes.
Compact structure: the space for accommodating functional units is small.
The connector has strong universality and flexible assembly. With E=25mm as the modulus, the structure and drawer can be arbitrarily combined according to the requirements of system design.
Bus bar protection adopts high-strength flame-retardant plastic functional board with high insulation strength, which has fault arc resistance and makes operation and maintenance stable and reliable.
The mechanical interlocking mechanism of all kinds of drawers meets the specification requirements, with three obvious positions of connection, test and separation, which is stable and reliable.
