GGD AC Low-Voltage Power Distribution Cabinet
GGD Fixed Low-Voltage Switchgear is an advanced, cost-effective power distribution cabinet designed for high safety, reliability, and flexibility. Suitable for power plants, substations, and industrial enterprises, it operates on a 50Hz AC system with a rated working voltage of 380V and a rated current up to 6300A. It serves as an ideal modernization solution for lower-voltage switchgear components, providing efficient electrical energy conversion, distribution, and control for power, lighting, and distribution equipment.
Description
Technical Features
1. GGD Basic Framework: Constructed using locally welded assemblies of 8MF or C-shaped cold-formed steel, ensuring high mechanical strength.
2. Natural Ventilation: The cabinet features ventilation slots at both the top and bottom ends, utilizing the principle of rising hot air to create a natural convection channel.
3. Golden Ratio: The cabinet’s exterior design adopts modern industrial styling principles, featuring aesthetically pleasing proportions and a fresh, contemporary appearance.
4. Reliable Grounding: Instrument doors housing electrical components are connected to the framework via multi-strand flexible copper wires, ensuring the entire cabinet forms a complete grounding protection circuit.
5. Top-Mounted Main Busbars: The main busbars are positioned at the top of the cabinet; constructed from high-conductivity, premium-grade copper, they are secured at connection points using double-bolt fasteners.
6. High-Insulation Clamps: The busbar clamps are injection-molded from a high-strength, flame-retardant PPO alloy material, effectively preventing short-circuit faults.
7. Safety Clearances: The primary components and wiring meet the required standards for electrical clearance (12 mm) and creepage distance (12 mm).
8. Flexible Installation: Internal components can be installed in fixed, plug-in, or withdrawable configurations, ensuring simple and intuitive operation of the switchgear.
Technical Parameters
Product Model: GGD AC Low Voltage Power Distribution Cabinet
| Item | Unit | GGD1 | GGD2 | GGD3 |
| Rated Operating Voltage | V | 380 (400) | ||
| Rated Insulation Voltage | V | 660 (1000) | ||
| Rated Voltage of Auxiliary Circuit |
V | 220/380 (400)
AC/DC 110, 220 |
||
| V | ||||
| Rated Frequency | Hz | 50 (60) | ||
| 1min Power Frequency Withstand Voltage of Main Circuit | Hz | ≤60 | ||
| Peak Withstand Voltage of Main Circuit | A | ≤6300 | ||
| Rated Current of Main Busbar | 400~1000 | 1000~1600 | 2000~3200 | |
| Rated Short-circuit Breaking Capacity | 15 | 30 | 50 | |
| Peak Withstand Current of Main Busbar | 30 | 63 | 105 | |
| Busbar System – Three-phase Four-wire | A, B, C, PEN | |||
| Busbar System – Three-phase Five-wire | A, B, C, N, PE | |||
| Protection Level | IP30 to IP54 | |||
| Executive Standard | IEC60439-1, GB7251.1 | |||
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