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China GCS Low Voltage Withdrawable Type Switchgear - Reliable Power Distribution Solutions from Top Suppliers and Factory
Model meaning
Conditions of use
Altitude: ≤2000m;
Air temperature: The upper limit of ambient air temperature is +40℃, and the lower limit is -5℃. The average temperature within 24 hours should not exceed +35℃, the minimum temperature under storage and transportation conditions is -30℃.
Relative humidity: It doesn't exceeds 50% at a maximum temperature of +40℃; higher relative humidity is allowable at lower temperatures (e.g. 90% at +20℃); however, it should be considered that occasional condensation may occur due to temperature change.
Installation location: When installing the equipment, the inclination of the vertical plane should not exceed 5°. It should be installed in a place without severe vibration and impact and with medium not enough to corrode electrical component.
Note: When the above normal service conditions cannot meet the usage requirement, it shall be negotiated between the user and the manufacturer.
Product characteristics
Strong commonality of structure and flexible assembly: The switchgear is a fully assembled combination structure, with installation holes of 20mm and 100mm modules on the side, with diameter of φ 9.2mm, making internal installation flexible and convenient.
Functional compartments: The compartments of the switchgear can be divided into functional unit room, busbar room and cable room. The functions of each functional unit are relatively independent, and the areas are strictly separated by continuously grounded metal plate or pressed flame-retardant plastic plate to ensure safe use and prevent the spread of accident.
Durable structural components: All structural components inside the switchgear shall be galvanized and passivated. The door panels and side panels around the switchgear are made of high-quality cold-rolled steel plates processed and formed by CNC machine tool, and then the surface is treated with acid washing, phosphating, and electrostatic spraying for wear and corrosion resistance. It has both strong mechanical strength and reliable grounding protection continuity.
Advanced draw-out unit features: The draw-out unit of the switchgear has connection position, test position, disconnection position, draw-out position and isolation position. Each draw-out unit and switch is equipped with mechanical interlock device: the draw-out unit can only be pulled out and inserted when the switch is in the open state, and cannot be pulled out or inserted when the switch is in the closed state. To prevent unauthorized operation, the operating mechanism handle can be locked in the open position with a padlock. Functional draw-out units of the same specification can be easily interchanged, with each draw-out unit corresponding to a maximum of 36 pairs of auxiliary contacts, which can meet the needs of remote operation control, electricity metering and computer interface automation monitoring system.
Busbar arrangement and safety: The horizontal main busbar is flatly arranged at the back of cabinet to enhance the busbar's ability to resist electric power, which is a basic measure to make the main circuit of the device have high short-circuit strength. The vertical busbar is assembled in insulated functional board to prevent phase discharge caused by switch arcing on the vertical busbar, improving the product's electric shock protection ability and safe operation rate. The design of the cable compartment makes it very convenient for cables to enter and exit both up and down.
Technical parameter
| Parameter Item | Value / Specifications |
|---|---|
| Rated insulation voltage (V) | AC660 |
| Rated working voltage (V) | AC380V (AC400) |
| Rated current of horizontal busbar (A) | ≤4000A |
| Rated current of vertical busbar (A) | 1000A |
| Maximum current of draw-out circuit (A) | 400A |
| Rated frequency (Hz) | 50(60) |
| Peak withstand current of horizontal busbar (kA) | 105, 176 |
| Short time withstand current of horizontal busbar (kA/1S) | 50, 80 |
| Peak withstand current of vertical busbar (kA) | 105 |
| Short time withstand current of vertical busbar (kA/1S) | 50 |
| Rated power frequency withstand voltage (V/1min) | 2500 |
| Secondary power frequency withstand voltage (V/1min) | 2500 |
| Enclosure protection level | IP40 |
| Enclosure dimension (mm) | Width 600(800, 1000) × Depth 800(1000) × Height 2200 |
| Effective height of functional unit (mm) | 1760 |
Switchgear and draw-out types
According to the purpose, it can be classified into: incoming cabinet, bus-tie cabinet, feeder cabinet (motor centralized control cabinet, lighting distribution cabinet), and reactive power compensation cabinet. According to the incoming method, it can be classified into four types: upper incoming and upper outgoing, upper incoming and lower outgoing, lower incoming and upper outgoing, and lower incoming and lower outgoing.
There are five specifications for draw-out unit height, all based on a unit height of 160mm: 1/2 unit, 1 unit, 3/2 unit, 2 unit and 3 unit in five sizes. Draw-out circuit current is 400A or below.
Outline and installation dimension of switchgear
| Name of switchgear | Width (W) | Depth (D) | Height (H) | Cable outlet (FXG) |
|---|---|---|---|---|
| Incoming cabinet | 600, 800, 1000 | 800, 1000 | 2200 | |
| Bus-tie cabinet | 800, 1000 | |||
| Feeder cabinet | 800, 1000 | 200×400, 400×400 | ||
| Draw-out cabinet | 800, 1000 | 200×350, 400×350 | ||
| Compensation cabinet | 800, 1000 |
Note: The above are recommended sizes. Users with special size requirement can negotiate with our company.
Mounting dimension
Installation diagram
Frequently Asked Questions (FAQ)
What are the ambient air temperature limits for this switchgear?
The upper limit of ambient air temperature is +40℃, and the lower limit is -5℃. The average temperature within 24 hours must not exceed +35℃, and the minimum allowed temperature under storage and transportation conditions is -30℃.
What is the maximum installation altitude for the equipment?
The switchgear is designed to operate safely at an altitude of ≤2000m. If you require operation at higher altitudes, please contact the manufacturer for customized specifications.
How is the structural safety and compartment separation designed?
The compartments are divided into functional unit room, busbar room, and cable room. Each functional unit operates independently, strictly separated by continuously grounded metal plates or pressed flame-retardant plastic plates to ensure safety and prevent accidents from spreading.
What safety mechanisms are in place for the draw-out units?
Each draw-out unit and switch features a mechanical interlock device. The unit can only be inserted or pulled out when the switch is in the open state. For security, the operating handle can also be padlocked in the open position.
What is the enclosure protection level (IP Rating) of this switchgear?
The default enclosure protection level for this switchgear is IP40, offering reliable protection against solid objects and dust entry.
Can the switchgear be customized to different dimensions?
Yes. While the standard recommended dimensions are 600/800/1000mm in width, 800/1000mm in depth, and 2200mm in height, users with special size requirements can negotiate customized dimensions with our company.