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China GCS LV Withdrawable Type Switchgear - Reliable Suppliers & Factory for Power Solutions
General
Ministry of electric power industry and Ministry of mechanical power industry issues <note of Popularization and application of GCS type LV draw-out type switchgear> in【1997】#1 document. Currently, GCS type LV draw-out type switchgear has been widely chosen and used by power users.
This device conforms to the relevant standard, such as IEC61439-2 <LV switching device and controlling device-part2: power supply switching device and controlling device>, GB7251.12< LV switching device and control device part2: Complete electric switching and controlling device>, GB/T24274-2009 <LV draw-out switchgear and controlling device>, etc.
Application
This device is suitable in distribution system of power plant, petroleum, chemical, metallurgy, spinning industries and other high-rise buildings. In highly automatic system of power plants and metallurgy systems, which needed to be interface with computer, this device is used as complete LV distribution device for power distribution, motor integrated control, reactive compensation using in the power generation system and distribution system of three phase AC50(60)Hz, rated working voltage 380V (400V), (690V), rated current 4000A or less than 4000A.
Service conditions
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Ambient temperature: Max: +40℃, Min: -5℃, Daily average temperature is not more than 35℃. Capacitance needs to be descended to operate if exceed the max temperature.
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Clean air: Relative humidity is not more than 50% when the max temperature is+40℃. When in lower temperature, higher relative humidity is allowed, such as 90%humidity when the temperature is +20℃, but the effect of condensation should be considered due to the change of temperature.
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Altitude: Gradient of slope is not more than 5 degree when installing, altitude is not more than 2000m.
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In the medium of no explosion risks, the medium has no gas and conductive dust that may corroding the metal and damage insulation.
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If user has other special requirement, please negotiate with our company.
Main technical parameters
| Name | Unit | Parameter | |
|---|---|---|---|
| Rated voltage of main circuit | V | AC380(400), 690 | |
| Rated voltage of auxiliary circuit | V | AC220, 380(400) DC110, 220 |
|
| Rated frequency | Hz | 50/60 | |
| Rated insulated voltage | V | 690, 800 | |
| Rated current | Horizontal bus | A | ≤4000 |
| Vertical bus | A | ≤1000 | |
| Rated short time withstand current of bus | kA/1s | 10, 20, 50, 80 | |
| Rated peak withstand current of bus | kA/1s | 17, 40, 105, 176 | |
| Power frequency test voltage(V/5S) | Main circuit | V | 1890 |
| Bus | Three phase four wires | / | A.B.C.PEN |
| Three phase five wires | / | A.B.C.PE.N | |
| Protection class | / | IP30, IP40, IP42 | |
Structure features
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The materials of main structure are C type steel. There are two module holes in two sides of the profiles steel which center distance are 20mm and 100mm, internal installation is flexible and easy.
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The chambers of switchgear are isolated to functional chamber, busbar chamber and cable chamber. Function of each chamber is relative independent.
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The structure form of feeder cabinet unit in drawer cabinet can be divided to three forms: drawer cabinet, fixed separation cabinet, drawer & fixed separation combination cabinet.
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Horizontal main bus are installed in the top of the switchgear, reserve the rear space for cable outgoing, easy for work on site.
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The design of cable compartment is easy for cable incoming and outgoing.
The dimensions of cabinet is as follow: (Unit: mm)
| Height | 2200 | |||||
| Width | 600 | 800 | 1000 | |||
| Depth | 800 | 1000 | 800 | 1000 | 800 | 1000 |
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Function unit: The modulus of the drawer storey height is 160mm, divide to five series: half unit, one unit, one and a half units, two units, 3units. The rated current of unit circuit is 400A and below.
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The change of the drawers is only the height, width and depth are both not changed. Drawers of the same functional units have good interchangeabilty.
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Each drawer cabinet can be installed at most 11 sets drawers of one unit type or 22 sets drawers of half unit type.
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The drawer panel has clear marking for opening,closing,testing,withdraw positions.
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The drawer cabinet is equipped with mechanical interlock device, prevent inserting and unplugging drawers with load. Switch operation handle can be equipped with up to 3 padlock, prevent unauthorized operations.
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The switch operating handle and drawer pushing and positioning mechanisms are independently set, and mechanical interlock is installed between the these two parts to avoid the phenomenon of switch tripping position jamming caused by the shared operating handle.
Diagram 1 Installation diagram of GCS switchgear (Top mounted busbar)
| Switchgear code | A | B | C | D | Note |
|---|---|---|---|---|---|
| GCS-TG1010-4 | 1000 | 1000 | 900 | 900 | Bus Section Cabinet |
| GCS-TG0810-4 | 800 | 1000 | 700 | 900 | Incoming Cabinet |
| GCS-TG0808-4 | 800 | 800 | 700 | 700 | Incoming Cabinet |
| GCS-TG0608-4 | 800 | 800 | 500 | 700 | Incoming Cabinet |
Diagram 2 Installation diagram of GCS switchgear (Top mounted busbar)
| Switchgear code | A | B | C | D | Note |
|---|---|---|---|---|---|
| GCS-TG0608-1 | 600 | 800 | 500 | 700 | - |
| GCS-TG0610-1 | 600 | 1000 | 500 | 900 | - |
| GCS-TG0808-1 | 800 | 800 | 700 | 700 | - |
| GCS-TG0810-1 | 800 | 1000 | 700 | 900 | - |
Frequently Asked Questions (FAQ)
What standards does the GCS type LV draw-out type switchgear comply with?
The device conforms to key international and national standards, including IEC61439-2 (LV switching and controlling devices), GB7251.12 (Complete electric switching and controlling devices), and GB/T24274-2009 (LV draw-out switchgear and controlling devices).
What are the primary applications of GCS switchgear?
It is ideal for distribution systems in power plants, petroleum, chemical, metallurgy, spinning industries, and high-rise buildings. It works as a complete LV distribution device for motor integrated control, power distribution, and reactive compensation in three-phase AC50(60)Hz systems with rated voltages up to 690V and current up to 4000A.
What environmental and service conditions are required for installation?
The ambient temperature should range between -5℃ and +40℃ (daily average ≤35℃). The installation altitude must not exceed 2000m, and the slope gradient must be ≤5 degrees. It must be installed in environments free of explosion risks, corrosive gases, or conductive dust.
What are the key technical parameters regarding rated current and protection?
The horizontal bus rated current is ≤4000A, and the vertical bus is ≤1000A. The switchgear features protection classes of IP30, IP40, and IP42, ensuring reliable operation and safety.
What safety mechanisms are built into the drawer units?
The drawer cabinet is equipped with a mechanical interlock device to prevent inserting and unplugging drawers under load. Additionally, the switch operating handle can be secured with up to 3 padlocks to prevent unauthorized operations, and it works independently of the drawer pushing mechanism to prevent switch jamming.