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GTXGN-12 AC Solid Insulated Ring Main Unit - Reliable Energy Distribution | China Suppliers & Factory
Product Categories
The switches are categorized based on type into Load Switch with Ground Assembly (C Module), Load Switch without Ground Assembly (CB Module), Circuit Breaker with Ground Assembly (V Module), Circuit Breaker without Ground Assembly (VB Module), Circuit Breaker Link Switch (VZ Module), Load Switch + Fuse Composite Apparatus Switch Assembly (F Module), and Isolating Switch Assembly (G Module).
Model and Definitions
Application Conditions
◇Environmental Temperature: -45℃ to +45℃
◇Humidity: Maximum Average Relative Humidity, Daily Average≤95%, Monthly Average≤90%
◇Altitude: ≤4000 meters
◇Seismic Resistance: 8 degrees
◇Level of Protection: Live Parts Sealed IP67, Fuse Tubes IP67, Switch Cabinet Housing IP4X
Standards for Implementation
◇IEC62271-1-2007 "High-Voltage Switchgear and Controlgear - Part 1: General Specifications"
◇IEC620071-200-2003 "AC Metal-Enclosed Switchgear and Controlgear for 1-52kV"
◇GB3906-2006 "AC Metal-Enclosed Switchgear and Controlgear for 3.6-40.5kV"
◇GB/T11022-1999 "Common Technical Conditions for High-Voltage Switchgear and Controlgear Standards"
◇GB1984-2003 "High-Voltage AC Circuit Breakers"
◇GB1985-2004 "High-Voltage AC Disconnectors and Earthing Switches"
◇GB3804-2004 "High-Voltage AC Load Switches for 3.6kV to 40.5kV"
◇DL/T404-2007 "AC Metal-Enclosed Switchgear and Controlgear for 3.6kV-40.5kV"
◇DIJT5932006 "Common Technical Conditions for High-Voltage Switchgear and Controlgear Standards"
◇Q/GDW730-2012 "Technical Conditions for 12kV Solid Insulated Ring Main Units"
Technical Parameters
Parameters of Switchgear
| No. | Units | Parameters | |||
| Nominal Voltage | KV | 12 | |||
| Rated Frequency | Hz | 50 | |||
| Rated Currency | A | 630 | 1250 | ||
| Nominal Insulation Level | Power Frequency Withstand Voltage | Break Point | KV | 48 | |
| Phase-to-Phase | KV | 42 | |||
| Relative | KV | 42 | |||
| Lighting Impulse Withstand Voltage | Break Point | KV | 85 | ||
| Phase-to-Phase | KV | 75 | |||
| Relative | KV | 75 | |||
| Rated Short-circuit Breaking Current(1s) | KA | 25 | 31.5 | ||
| Rated Short-time Withstand Current(4s) | KA | 25 | 31.5 | ||
| Rated Peak Withstand Current(lp) | KA | 36 | 80 | ||
| Rated Circuit Making Current(Peak)(1ma) | KA | 36 | 80 | ||
| Level of Protection for Shell | IP4X | ||||
| Operation Mode | Spring-operated | ||||
Isolation Ground Switch Technical Parameters
| No. | Items | Units | Parameters | ||
| 1 | Nominal Voltage | kV | 12 | ||
| 2 | Rated Currency | A | 630 | 1250 | |
| 3 | 4S Rated Short-time Withstand Current (Valid Value) | kA | 25 | 31.5 | |
| 4 | Rated Peak Withstand Current (Peak) | kA | 63 | 80 | |
| 5 | 1min Power Frequency Withstand Voltage | Phase-to-Phase and Ground | kV | 42 | |
| Isolation Break Point | 48 | ||||
| 6 | Rated Lighting Impulse Withstand Voltage | Phase-to-Phase and Ground | kV | 75 | |
| Isolation Break Point | 85 | ||||
| 7 | Main Switch Machinery Service Life | Time | 3000 | ||
| 8 | Ground Switch Machinery Service Life | Time | 3000 | ||
Safety and Environmental Protection
Isolation Knife Visible Break Point
The cabinet features a prominent visible window for the Isolation Break Point, allowing personnel to observe the three working positions: isolation engaged, isolation disengaged, and grounding engaged. This design facilitates the on-site staff in determining the position of the isolation knife, ensuring a high level of safety.
Internal Arc Design
Internal Arc Pressure Valve: When an arc occurs inside the product, the pressure will be released through this valve, directing the arc away into the cable trench to prevent accidental injury to operators.
Green & Environmentally Friendly
Designed with environmentally friendly materials, this product does not use SF6 gas as an arc extinguishing medium or insulation, thus avoiding environmental pollution. The one-time circuit design minimizes contact points, ensuring low energy consumption during operation.
External Dimensions
| Model | Width (mm) | Depth(mm) | Height(mm) |
| Load Switch PT Cabinet (CPT) | 500 | 950 | 1650 |
| Circuit Breaker Cabinet (VB) | 400 | 950 | 1650 |
| Circuit Breaker Cabinet(V) | 400 | 950 | 1650 |
| Circuit Breaker Bus Coupling Cabinet (VZ) | 400 | 950 | 1650 |
| Busbar Lifting Cabinet(G) | 400 | 950 | 1650 |
| Load Switch Fuse Combination Cabinet (F) | 500 | 950 | 1650 |
Frequently Asked Questions
Q1:What are the main product categories available?
The switches are categorized into Load Switch with Ground Assembly (C Module), Load Switch without Ground Assembly (CB Module), Circuit Breaker with Ground Assembly (V Module), Circuit Breaker without Ground Assembly (VB Module), Circuit Breaker Link Switch (VZ Module), Load Switch + Fuse Composite Apparatus Switch Assembly (F Module), and Isolating Switch Assembly (G Module).
Q2:What environmental conditions are required for operating this switchgear?
The switchgear is designed for environments with temperatures ranging from -45℃ to +45℃, daily average relative humidity ≤95% (monthly ≤90%), altitudes up to 4000 meters, seismic resistance up to 8 degrees, and protection levels of IP67 for live parts/fuse tubes and IP4X for the cabinet housing.
Q3:Does this equipment use SF6 gas for insulation?
No, this product does not use SF6 gas as an arc extinguishing medium or insulation. It is designed with green, environmentally friendly materials to avoid environmental pollution and features a one-time circuit design to minimize contact points and ensure low energy consumption.
Q4:How does the visible break point design improve safety?
The cabinet includes a prominent visible window for the Isolation Break Point. This allows operators to easily observe the three working positions: isolation engaged, isolation disengaged, and grounding engaged, ensuring safe operations on-site.
Q5:What is the machinery service life of the main switch and ground switch?
Both the main switch and the ground switch are rated for a mechanical service life of 3000 operations.
Q6:What happens in the event of an internal arc fault?
The product is designed with an Internal Arc Pressure Valve. In the event of an internal arc, pressure is safely released through this valve and directed into the cable trench, protecting operators from accidental injury.