GGD AC Low-Voltage Distribution Cabinet
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Product Introduction
The GGD-type AC low-voltage switchgear is suitable for power distribution systems in power plants, substations, industrial and mining enterprises, and other power users. It operates at 50 Hz AC, with a rated operating voltage of 380 V and a rated operating current up to 3150 A, and is used for the electrical conversion, distribution, and control of power, lighting, and distribution equipment.
The GGD-type AC low-voltage switchgear is a new type of low-voltage switchgear designed in accordance with the requirements of the competent authorities under the Ministry of Energy, as well as those of power users and design institutes, based on the principles of safety, economy, rationality, and reliability. This product features high breaking capacity, excellent dynamic and thermal stability, flexible electrical configurations, convenient combination options, strong series compatibility, high practicality, innovative structural design, and high protection levels. It can serve as an upgraded replacement for conventional low-voltage switchgear assemblies. The GGD-type AC low-voltage switchgear complies with standards such as IEC 439 “Low-Voltage Switchgear and Controlgear Assemblies” and GB 7251 “Low-Voltage Switchgear Assemblies.”
Model Meaning
Operating environment
▷ The ambient air temperature around D shall not exceed +40°C nor fall below -5°C; the average temperature over any 24-hour period shall not exceed +35°C.
▷ For indoor installation and use, the altitude of the installation location must not exceed 2000 m.
▷ The relative humidity of the surrounding air should not exceed 50% at the maximum temperature of +40°C; however, higher relative humidity levels should be permissible at lower temperatures (e.g., up to 90% at +20°C), taking into account the potential for condensation that may occasionally occur due to temperature fluctuations.
▷ The tilt angle of the equipment during installation with respect to the vertical plane shall not exceed 5°.
▷ The equipment should be installed in a location free from severe vibrations and impacts, as well as in an environment that does not expose electrical components to corrosion.
▷ If users have special requirements, they may negotiate with the manufacturer to find a solution.
Technical Parameters
| Model | Rated Voltage (V) | Rated current (A) | Rated short-circuit Breaking current (kA) |
Rated short-time withstand current (1s)(kA) |
Rated peak withstand current (kA) |
|
| GGD1 | 380 | A | 1000 | 15 | 15 | 30 |
| GGD1 | 380 | B | 600(630) | 15 | 15 | 30 |
| GGD1 | 380 | C | 400 | 15 | 15 | 30 |
| GGD2 | 380 | A | 1500 (1600) | 30 | 30 | 63 |
| GGD2 | 380 | B | 1000 | 30 | 30 | 63 |
| GGD2 | 380 | C | 600 | 30 | 30 | 63 |
| GGD3 | 380 | A | 3150 | 50 | 50 | 105 |
| GGD3 | 380 | B | 2500 | 50 | 50 | 105 |
| GGD3 | 380 | C | 2000 | 50 | 50 | 105 |
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GGD AC Low-Voltage Distribution Cabinet
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