Low Voltage Switchgear
GCK Low Voltage Draw-Out Switchgear
Product Overview
The GCK low-voltage draw-out switchgear consists of two parts: Power Center (PC) cabinets and Motor Control Center (MCC) cabinets. Suitable for power distribution systems in power plants, substations, industrial and mining enterprises, etc., it is used for power conversion, distribution, and control of power distribution, motor control, lighting, and other electrical equipment in 50Hz AC systems with a maximum working voltage of 660V and maximum working current of 3150A.
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Product Features
- The entire cabinet adopts a knockdown combined structure with modular hole mounting, featuring high component universality, strong adaptability, and a high level of standardization.
- The upper part of the cabinet is the busbar compartment, the front is the electrical compartment, and the rear is the cable inlet/outlet compartment. Each compartment is separated by steel plates or insulation boards to ensure safety.
- The door of the drawer compartment in the MCC cabinet is equipped with a mechanical interlock with the operating handle of the circuit breaker or isolating switch; the door can only be opened when the handle is in the open position.
- The incoming switch, tie switch, and drawers of the MCC cabinet have three positions: connected position, test position, and disconnected position.
- A busbar bridge can be installed on the top of the switchgear as per power-receiving requirements.
Product Details & Applications
Operating Conditions
- Environmental temperature: not higher than+40 ℃, not lower than -5 ℃; The average temperature within 24 hours shall not be+35 ℃; When exceeded, it is necessary to reduce the capacity and operate according to the actual situation;
- Altitude: not exceeding 2000m, for indoor use;
- Atmospheric conditions: The relative humidity of the surrounding air should not exceed 50% at a maximum temperature of+40 ℃, and a relatively high relative humidity is allowed at lower temperatures, such as 90% at+20 ℃. The influence of condensation due to temperature changes should be considered;
- When installing the device, the inclination with respect to the vertical plane shall not exceed 50 ℃, and the entire cabinet row shall be relatively flat (in accordance with GBJ232-82 standard);
- The device should be installed in a place where there is no severe vibration and impact, and where the electrical components are not subjected to the necessary corrosion; Note: If any customized requirements, please consult with our company.
Technical Specifications
| Items | Data | |
|---|---|---|
| Rated operating frequency(Hz) | 50 | |
| Rated working voltage(V) | 380,660 | |
| Rated insulation voltage(V) | 660 | |
| Rated working current(A) | Horizontal busbar | 630-3150 |
| Rated working current(A) | Vertical busbar | 600 |
| Rated short-time withstand current | Horizontal busbar | 80kA(Effective value)/1 sec |
| Rated short-time withstand current | Vertical busbar | 50kA(Effective value)/1 sec |
| Rated peak withstand current | Horizontal busbar | 176kA/0.1s |
| Rated peak withstand current | Vertical busbar | 110kA/0.1s |
| Main circuit connector(A) | 200, 400, 680, 800 | |
| Auxiliary circuit connector(A) | 10 | |
| Power frequency withstand voltage for 1 min(V) | 2500 | |
| Protection level | IP40 | |
| Operation mode | On site, remote, automatic |
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