The GCS type Low-voltage Withdrawable Assembled Switchgear (hereinafter referred to as the “Switchgear”) is a product developed by our company to meet the extensive demands of our clientele. It is designed to align with domestic conditions, boasting high technical performance indicators, and is capable of adapting to the evolving needs of the power market while competing with existing imported products. This product is now widely selected by power users. The switchgear is suitable for distribution systems in industries such as power plants, petroleum, chemical, metallurgy, textiles, and high-rise buildings. In locations with high automation levels, such as large-scale power plants and petrochemical systems, which require computer interface compatibility, it serves as a low-voltage assembled distribution device. It is used for power distribution, centralized motor control, and reactive power compensation within three-phase AC systems with a frequency of 50 (60) Hz, a rated operational voltage of 380V (400V, 660V), and a rated current of up to 4000A.
◆ Ambient Air Temperature: -5°C to +40°C. The daily average temperature does not exceed +35℃. Derating operation may be required based on actual conditions.
◆ Altitude: 2000 meters and below.
◆ Relative Humidity: Does not exceed 50% at the maximum temperature of +40°C. Higher relative humidity is permissible at lower temperatures (e.g., 90% at +20°C). The potential for occasional condensation due to temperature fluctuations should be considered.
◆ The equipment should be installed with a tilt not exceeding 5° from the vertical plane, and the entire switchboard lineup should be relatively level.
◆ The equipment should be installed in a location free from severe vibration and impact, and in an area that will not lead to corrosion of the electrical components and materials.
◆ Users with special requirements may consult with our company’s technical engineers for a solution.
When placing an order, the customer must provide the following information:
◆ The complete product model, including the main and auxiliary circuit diagram numbers.
◆ Single-line diagram of the main circuit system layout/sequence.
◆ Electrical schematic diagram for the auxiliary circuits.
◆ List of components to be installed inside the cabinet.
◆ Setting parameters for the circuits, such as voltage, current, and time.
◆ Any other special requirements that deviate from the product’s normal usage conditions.
| Item | Parameter | |
| Rated voltage of main circuit | 400V、690V | |
| Rated frequency | 50Hz | |
| Rated insulation voltage | 690V (1000V) | |
| Rated current | Horizontal busbar below 4000A | |
| Vertical busbar 1000A | ||
| Busbar rated short-time withstand current(KA/S) | 50, 80 | |
| Busbar rated peak withstand current(KA/0.1S) | 105, 176 | |
| Rated voltage of auxiliary circuit | AC230V、400V、DC110V、220V | |
| Power frequency test voltage (V/5S) | 2500 | |
| 1760 | ||
| Protection grade | IP30, IP40 | |
| Busbar set | Three-phase four-wire system | A, B, C, PEN |
| Three-phase five-wire system | A, B, C, PEN, N | |
