GGD AC Low Voltage Switchgear

GGD AC Low Voltage Switchgear is a widely used low-voltage complete power distribution unit. It boasts high reliability, ease of installation and maintenance, and a competitive price, helping you save costs. Choose Shangming as your supplier with confidence and receive worry-free one-stop service.

What is GGD AC Low-Voltage Switchgear?

GGD AC low-voltage switchgear is a mature and widely used low-voltage AC distribution switchgear, often used as the main power distribution or sub-distribution equipment in power distribution systems. It is also a product that Shangming can supply in bulk.

GGD is a common and mature low-voltage switchgear model. "Low-voltage" indicates that this product is used for low-voltage power distribution such as AC 380V/400V. It integrates circuit breakers, busbars, protection and control components to ensure the safe and stable operation of the power distribution system.

Technical Features

Cabinet Structure: The GGD AC low-voltage switchgear adopts a general-purpose cabinet design, assembled using cold-formed steel sections through partial welding. This results in a cabinet with high rigidity and load-bearing capacity.

Modular Design: Cabinet frame components and specialized accessories are supplied by a steel section sub-center, ensuring high precision and quality of the cabinet.

Heat Dissipation System: The cabinet features varying numbers of ventilation holes at both the top and bottom. When the electrical components inside generate heat, hot air rises and is exhausted through the upper slots, while cool air is replenished through the lower slots, forming a natural airflow.

Protection Rating: Standard configuration is typically IP30. IP40 can be customized to meet environmental requirements. Please contact Shangming for details; our technical team will conduct a pre-customization analysis.

Why Choose GGD AC Low-Voltage Switchgear?

Economy: Compared to withdrawable switchgear, GGD AC low-voltage switchgear has a simpler structure, eliminating complex drawer interlocking mechanisms and expensive connectors, resulting in a 30%-50% lower cost. Furthermore, its components are highly versatile, and spare parts are readily available.

Intuitive Operation and Maintenance: GGD's fixed structure makes all connection points and wiring readily visible, facilitating inspections. Compared to the potential risks of poor connector contact or arcing in drawer-type switchgear, fixed bolt-fastened connections offer higher reliability over long-term operation.

High Breaking Capacity: Rated short-circuit breaking current up to 50kA.

Good Dynamic and Thermal Stability: This switchgear can withstand the mechanical stress and thermal shock generated by short-circuit currents.

Application Scenarios

The high cost-effectiveness and mature technology of GGD AC Low Voltage Switchgear are the reasons why many customers choose them. Projects where we have cooperated most frequently include:

Substations and Power Plants: GGD can be used for power conversion in AC 50Hz power systems with a rated operating voltage of 380V.

Industrial Enterprises: Responsible for the control, power distribution, and lighting of large motors.

Buildings: Main distribution rooms in commercial complexes and residential areas.

Capacitor Compensation: Commonly used for reactive power compensation in power systems, i.e., GGD type compensation cabinets.

Ordering Information

If you are certain you need to order GGD cabinets, please contact Shangming immediately and provide the following information:

Main Circuit Diagram (Single Circuit): We need to determine the layout of the internal circuit breakers and busbars.

Auxiliary Circuit Diagram (Second Circuit): Control logic, indicator lights, and instrument requirements.

Component List: Whether you specify a particular brand of circuit breaker, such as Schneider, ABB, Chint, etc.

Cabinet Color: Default is light gray (RAL 7035), customizable.

FAQ

Q: What size circuit breaker can be installed in a GGD cabinet?

A: GGD cabinets have a very high load-bearing capacity. The main incoming line can accommodate universal circuit breakers up to 3150A or even 4000A. Outgoing lines can be flexibly arranged with molded case circuit breakers according to requirements.

Note: When customizing, you need to specify the busbar specifications with us to ensure that the copper busbar cross-sectional area meets the temperature rise requirements of the rated current.

Q: How effective is this cabinet at preventing dust and moisture?

A: The standard GGD cabinet has an IP30 protection rating.

In dusty factories or damp basements, the rating can be increased to IP40 by adding sealing strips and protective panels.

However, since it relies on natural ventilation channels, an excessively high IP rating will affect heat dissipation; a balance must be struck between protection and heat dissipation.

Q: Are the busbars inside the GGD cabinet laid horizontally or vertically?

A: GGD cabinets typically use a horizontal busbar arrangement at the top.

This layout not only enhances the dynamic stability of the cabinets, but also facilitates the horizontal connection of multiple GGD cabinets.