Product Overview
The GG1A-12(F) Fixed Error-Prevention High-Voltage Switchgear Cabinet is an Indoor HV switchgear designed for fixed installation, featuring a complete mechanical interlocking system that meets the "Five Prevention" safety requirements. It is suitable for 3–10kV three-phase AC 50Hz power systems, serving as a reliable solution for power reception and distribution.
This medium voltage metal clad switchgear is widely used in single busbar systems and can be extended to single busbar with bypass configurations. Based on the upgraded GG1A-12F model, it complies with GB/T11022 standards, ensuring stable performance, high safety, and operational reliability.
Environmental Adaptability
Ambient temperature: Max +40°C, Min -15°C (indoor)
Altitude: ≤1000m
Relative humidity:
- Monthly average ≤90% (at ±25°C)
- Daily average ≤95% (at ±25°C)
Seismic intensity: ≤8 degree
Free from conductive dust, corrosive gases, or insulation-damaging substances
No fire or explosion hazard environments
Technical Specifications
| Item | Unit | Parameter |
|---|---|---|
| Rated Voltage | kV | 3.6 / 7.2 / 12 |
| Rated Current | A | 630–3150 |
| Peak Withstand Current | kA | 50 / 63 / 80 / 100 |
| Short-Time Withstand Current (4s) | kA | 20 / 25 / 31.5 / 40 |
| Operation Method | - | Electromagnetic / Spring-charged |
| Dimensions (W×D×H) | mm | 1200×1200×3100 (≤1600A) / 1540×1400×3100 (≥2000A) |
Product Advantages
1. Robust and Reliable Structure
Constructed with a high-strength welded frame using 50×50×5 angle steel, ensuring excellent rigidity and resistance to deformation. High-quality steel panels enhance corrosion resistance and protection level.
2. Functional Partition for Easy Maintenance
Clear compartmentalized design:
- Upper left: relay & instrument chamber
- Middle: operation panel
- Right: terminal chamber
- Lower: closing contactor & fuse
Improves maintenance efficiency and reduces operational errors.
3. Optimized Internal Layout
Upper section for circuit breaker, lower section for isolator and cable compartments. Separation of power/control systems enhances operational safety.
4. Complete "Five Prevention" Interlocking
Built-in interlocking system effectively prevents:
- Misoperation of disconnectors
- Access to live compartments
- Incorrect switching sequences
Ensuring maximum safety for personnel and equipment.
Product Dimensions and Components
GG-1A (F)
Basic skeleton diagram of high-voltage switchgear
1. Relay door 2. Terminal room door 3. Operation board 4. Contactor room door 5. Main busbar insulator bracket 6. Door to door 7. Next door 8. Relay room 9. Lighting fixtures 10. Terminal room
OCustomization and Selection Guide
Please provide the following information when ordering to ensure accurate product matching:
Main circuit scheme number, main wiring system diagram, layout diagram, floor plan;
Auxiliary circuit and control circuit wiring schematic diagram, terminal block layout;
Model, specification, and quantity of components inside the cabinet;
Whether to add a surge arrester (circuit breaker handcart);
Whether to configure a voltage indicating device;
Cabinet color requirements (if no special request, the company standard will be used);
Special operating environment or other technical requirements.
Applications
This Indoor HV switchgear is widely used in:
1.Industrial and mining power distribution
2.Commercial buildings (malls, hospitals, airports)
3.Residential and municipal infrastructure
4.Retrofit of old distribution systems
It is an ideal medium voltage metal clad switchgear solution for safe, stable, and cost-effective power distribution.
Our Company
Zhejiang Gangheng Electric Co., Ltd., established in 2004, is a national high-tech enterprise specializing in the R&D, production, sales, and technical consulting of high and low voltage electrical equipment (switchgear) and transformers. The company is located in Sidu Town, Jiangshan City, Zhejiang Province, adjacent to National Highway 205, the Zhejiang-Jiangxi Railway, and the G3 Beijing-Taipei Expressway, offering convenient transportation.
The company possesses advanced CNC punching machines, laser cutting machines, copper bar bending machines, and a full set of testing equipment, strictly adhering to international and national standards in production. Our products include theGG1A-12(F) Fixed Error-Prevention High-Voltage Switchgear Cabinet and others. We are listed on the State Grid e-commerce platform and hold ISO9001, ISO14001, and OHSAS18001 certifications, along with type test reports for high-voltage cabinets and multiple patents.
Our products sell well across domestic provinces and are exported to countries such as Iran, Kyrgyzstan, Zimbabwe, and Tanzania. We adhere to the policy of "Prospering the enterprise through science and technology, Building the brand with quality," providing full-cycle services from technical training to after-sales support. With optimal performance, the widest variety, competitive prices, and the best service, we aim to be your trusted partner in power equipment supply.
FAQ
Q: 1. What is GG1A-12(F) Indoor HV switchgear used for?
A: The GG1A-12(F) is an Indoor HV switchgear designed for power reception and distribution in 3–10kV electrical systems. It is widely used in industrial plants, commercial buildings, and infrastructure projects.
Q: 2. What does "Five Prevention" mean in this switchgear?
A: The "Five Prevention" system refers to safety interlocks that prevent:
Incorrect operation of disconnectors
Closing under load
Opening under load
Entering live compartments
Grounding switch misoperation
This ensures maximum safety for both operators and equipment.
Q: 3. Is this a medium voltage metal clad switchgear?
A: Yes, the GG1A-12(F) belongs to medium voltage metal clad switchgear, featuring a fully enclosed metal structure with compartmentalized design for enhanced safety and reliability.
Q: 4. What standards does this switchgear comply with?
A: This medium voltage metal clad switchgear complies with GB/T11022 and other relevant international standards, ensuring high performance and reliability.
Q: 5. What is the installation environment requirement?
A: This Indoor HV switchgear is suitable for indoor environments without:
Conductive dust
Corrosive gases
Fire or explosion hazards
Q: 6. Can this switchgear replace old GG-1A cabinets?
A: Yes, the GG1A-12(F) is an upgraded version of GG-1A switchgear with improved safety features, making it ideal for retrofit and upgrade projects.
Q: 7. What is the delivery time and after-sales service?
A: Standard delivery time: 2–4 weeks (depending on configuration)
Technical support: available before and after sales
After-sales service: remote guidance or on-site support if required
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