Product Overview
GCS low-voltage complete distribution equipment is applicable to power distribution scenarios across power plants, petrochemical, metallurgical, textile, high-rise building and other industries, especially for large-scale power plant and petrochemical projects featuring high automation and computer system interfacing requirements. Designed for 3-phase 50(60)Hz AC power grids with rated operating voltages of 380V, 400V, 660V and rated current up to 6300A, the unit fulfills power distribution, centralized motor control and reactive power compensation duties, serving as a widely adopted reliable low-voltage power distribution solution for industrial and building power supply systems.
Model and Meaning
Service Conditions
- The altitude does not exceed 2000m;
- The ambient air temperature is not higher than +40℃ , and the average temperature within 24h is not higher than +35℃ , and the ambient air temperature is not lower than -50℃ ;
- Atmospheric conditions: the air is clean, the relative humidity does not exceed 50% at a temperature of +40℃ , and the higher relative humidity is allowed at a lower temperature, such as: 90% at +20℃ ;
- There is no fire, explosion hazard, serious pollution, chemical corrosion and severe vibration;
- It is inclined no more than 5 ° from the vertical plane;
- This product is suitable for the following temperature transportation and storage: -25℃ ~ +55℃ , in a short time (not more than 24h) does not exceed +70℃ .
- Note: If the above conditions of use cannot be met, the user shall submit it to the manufacturer at the time of ordering and resolve it by negotiation.
Technical Parameters
| Rated voltage of main circuit (V) | |
| AC 380(400), (660) | Rated short time withstand current of bus bar (kA/1s) 50, 80 |
| Rated voltage of auxiliary circuit (V) | Rated peak withstand current of bus bar (kA/0.1s) 105, 176 |
| AC 220, 380(400) | Line frequency test voltage (V/1min) |
| DC 110, 220 | Main circuit 2500 |
| Rated frequency 50(60)(Hz) | Auxiliary circuit 1760 |
| Rated insulation voltage 660(1000)(V) | Bus bar |
| Rated current (A) | Three-phase four-wire system A.B.C.N |
| Horizontal bus bar ≤4000 | Three-phase five-wire system A.B.C.PE.N |
| Vertical bus bar 1000 (MCC) | Protection grade IP30, IP40 |
Main Features
- Main framework adopts 8MF bar steel. Both sides of bar steel is installed with φ9.2mm mounting hole with modulus 20mm and 100mm. Inner installation is flexible and easy.
- Two types of assembly form design for main framework, full assembly structure and partial (side frame and cross rail) welding structure for user selection.
- Each function compartment of device is separated mutually. The compartments are divided into function unit compartment, bus bar compartment and cable compartment. Each one has relative independent function.
- Horizontal bus bar adopts cabinet back level placed array pattern for enhancing the capacity of resisting electrodynamic force for bus bar. It is the basic measure for obtaining high short circuit strength capacity for main circuit.
- Cable compartment design makes cable outlet and inlet up and down convenient.
Internal Structure
