The GGD type AC low-voltage distribution board is suited for power users such as power plants, substations, and industrial & mining enterprises. It is designed for AC 50 Hz systems with a rated operational voltage of 380V and rated operational currents up to 3150A. Its primary functions are power conversion, distribution, and control for motors, lighting, and other distribution equipment within the power distribution system.
◆ Ambient Air Temperature: -5°C to +40°C, with a daily average not exceeding +35°C.
◆ Altitude: 2000 meters and below.
◆ Relative Humidity: Shall not exceed 50% at the maximum temperature of +40°C. Higher relative humidity is permissible at lower temperatures (e.g., 90% at +20°C). Potential condensation due to temperature fluctuations should be taken into consideration.
◆ Installation Tilt: The equipment should not be installed with a tilt exceeding 5° from the vertical plane.
◆ Location: The equipment must be installed in an area free from severe vibration and impact, and in a location that will not cause corrosion to the electrical components and materials.
◆ Special Requirements: Users with specific needs may consult with our company’s technical engineers for a solution.
When placing an order, customers are required to provide the following information:
◆ Any other special requirements that deviate from the product’s standard usage conditions.
◆ The complete product model, including the main and auxiliary circuit diagram numbers.
◆ The main circuit system single-line diagram and arrangement sequence.
◆ The auxiliary circuit electrical schematic diagram.
◆ A detailed list of components to be installed inside the cabinet.
| Model | Rated voltage (V) | Rated current (A) | Rated short-circuit breaking current (KA) | Rated short-circuit withstand current (1S)(KA) | Rated peak withstand current (KA) |
| GGD-Ⅰ | 400 | 100 | 15 | 15 | 30 |
| 630 (600) | |||||
| 400 | |||||
| GGD-Ⅱ | 400 | 1600 (1500) | 30 | 30 | 63 |
| 1000 | |||||
| 600 (600) | |||||
| GGD-Ⅲ | 400 | 3150 | 50 | 50 | 105 |
| 2500 | |||||
| 2000 |
Main circuit scheme:
The GGD series offers a total of 133 circuit schemes, comprising 310 specifications. The breakdown is as follows: the GGD-I series includes 49 schemes and 123 specifications; the GGD-II series has 53 schemes and 107 specifications; the GGD-III series provides 27 schemes and 68 specifications; and the GGJ1/GGJ2 series consists of 24 schemes and 12 specifications.
