The GGD Series AC Low-Voltage Stationary Switchgear is the global standard for reliable, fixed-type power distribution. Designed for AC 50/60Hz systems with rated voltages up to 660V, the GGD cabinet is the preferred choice for power plants, substations, and industrial enterprises requiring a stable and economical "Main LV Switchboard."

Unlike withdrawable systems, the GGD series features a fixed internal architecture that allows for larger internal clearances and simplified busbar routing. This makes it exceptionally durable for handling high-amperage loads (up to 3150A) and provides maintenance personnel with easy, direct access to all primary components. With its rigid frame and high short-circuit withstand capacity, the GGD set is engineered for 24/7 heavy-duty industrial service.

• Heavy-Duty Universal Frame: Constructed from 8MF cold-formed steel profiles. The modular hole system (E=20mm) allows for a high degree of internal customization while maintaining superior mechanical strength and structural rigidity.

• Optimized Thermal Management: The GGD cabinet is designed with natural ventilation in mind. Strategically placed cooling slots at the top and bottom of the cabinet door, as well as the side panels, create a chimney effect for efficient heat dissipation.

• High Breaking Capacity: Engineered to accommodate high-performance Air Circuit Breakers (ACBs) and Molded Case Circuit Breakers (MCCBs), supporting a rated short-time withstand current (Icw) of up to 50kA.

• Flexible Circuit Configuration: As a customizable "Stationary Set," we can configure the GGD for incoming lines, bus-couplers, feeders, or capacitor compensation (Power Factor Correction) within the same lineup.

• Industrial Safety & Grounding: Features a comprehensive earthing system with dedicated copper busbars. The door and frame are connected via flexible braided copper wire to ensure total electrical continuity and operator safety.

1. Industrial Factories: Primary power distribution for steel mills, cement plants, and textile factories where high current stability is required.

2. Transformer Substations: Serving as the low-voltage side of 10kV or 35kV step-down transformers in municipal grids.

3. Infrastructure Projects: Reliable power hubs for airports, railway stations, and high-rise commercial complexes.

4. Water & Waste Management: Main control panels for large-scale pumping stations and aeration systems.

• Bespoke Engineering: We provide full CAD design services to tailor the internal components and layout to your Single Line Diagram (SLD).

• Premium Component Integration: We integrate world-class switchgear from brands like Schneider, ABB, and Chint, or provide high-quality cost-effective alternatives to meet your budget.

• Corrosion-Proof Finish: All panels undergo a multi-stage chemical cleaning process followed by an electrostatic epoxy powder coating (Standard RAL 7035), ensuring long-term durability in industrial environments.

• Ready for Global Export: Shipped in heavy-duty, sea-worthy wooden crates with moisture-proof barriers, ensuring the equipment arrives site-ready.

Q: Why choose GGD Fixed Type over Withdrawable (GCK/MNS) types?

A: GGD is significantly more cost-effective and easier to maintain for circuits that don't require frequent "hot-swapping." It also offers superior heat dissipation for very high-amperage main feeders.

Q: Can the GGD cabinet be used for outdoor installation?

A: The standard GGD is an indoor IP30 unit. For outdoor use, we can house the GGD set within an IP54/IP55 weather-proof outdoor kiosk or "Compact Substation."

Q: What is the lead time for a custom GGD lineup?

A: Depending on the complexity and component availability, standard custom GGD lineups are typically manufactured and tested within 3 to 5 weeks.

GGD AC low-voltage fixed switchgear sets are suitable for power, lighting and power distribution equipment conversion, distribution and control in power distribution systems with AC 50Hz, rated working voltage 380V and rated current below 3150A of power users such as power plants, substations, factories and mining enterprises.

The product has the characteristics of high breaking ability, good dynamic and thermal stability, flexible electrical scheme, convenient combination, strong series practicability, novel structure and high protection level.

The GGD AC low-voltage PDC complies with IEC439 "Low-voltage switchgear and Control Equipment" and GB7251.1 "Low-voltage switchgear" and other standards.