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China GXGN-12 Solid-Insulated Ring Main Unit Switchgear - Eco-Friendly, Maintenance-Free, Factory Supplies
Type Designation
| 1 | Manufacturer Code |
| 2 | Solid Fully Insulated Enclosed Ring Main Unit Switchgear |
| 3 | Design Serial Number |
| 4 | Rated Voltage (kV) |
| 5 | Rated Current (A) |
| 6 |
Switch Type: C — Load Switch; V — Circuit Breaker; G — Disconnector; F — Load Switch-Fuse Combination Switchgear; CB — Load Switch without Grounding; VB — Circuit Breaker without Grounding; VZ — Circuit Breaker Linked Switch |
| 7 | Rated Short-Time Withstand Current (20, 25kA) |
| 8 | B: Without Grounding Switch; Z: Bottom Direct Outgoing Line |
Switchgear Technical Parameters
| Name | Unit | Parameter | |||
| Rated Voltage | kV | 12 | |||
| Rated Frequency | Hz | 50 | |||
| Rated Current | A | 630 | 1250 | ||
| Rated Insulation Level | Power Frequency Withstand Voltage | Break | kV | 48 | |
| Phase-to-Phase | kV | 42 | |||
| Phase-to-Ground | kV | 42 | |||
| Lightning Impulse Withstand Voltage | Break | kV | 85 | ||
| Phase-to-Phase | kV | 75 | |||
| Phase-to-Ground | 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 (1p) | kA | 63 | 80 | ||
| Rated Short-Circuit Making Current (Peak) (1ma) | kA | 63 | 80 | ||
| Enclosure Protection Level | IP4X | ||||
| Operation Mode | Spring-Operated (Energy Storage Type) | ||||
Product Display
Disconnector and Earthing Switch Technical Parameters
| No. | Item | Unit | Parameter | ||
| 1 | Rated Voltage | kV | 12 | ||
| 2 | Rated Current | A | 630 | 1250 | |
| 3 | 4s Rated Short-Time Withstand Current (RMS) | kA | 25 | 31.5 | |
| 4 | Rated Peak Withstand Current (Peak) | kA | 63 | 80 | |
| 5 | 1min Power Frequency Withstand Voltage | Phase-to-Phase & Phase-to-Ground | kV | 42 | |
| Isolating Break | 48 | ||||
| 6 | Rated Lightning Impulse Withstand Voltage | Phase-to-Phase & Phase-to-Ground | kV | 75 | |
| Isolating Break | 85 | ||||
| 7 | Main Switch Mechanical Life | operations | 3000 | ||
| 8 | Earthing Switch Mechanical Life | operations | 3000 | ||
External Dimensions
Switchgear Dimensions
| Model | Width (mm) | Depth (mm) | Height (mm) |
| Load Switch PT Cabinet (CPT) | 500 | 950 | 1650 |
| Circuit Breaker Cabinet (VB) | 425 | 860 | 1850 |
| Circuit Breaker Cabinet (V) | 425 | 860 | 1850 |
| Circuit Breaker Bus Tie Cabinet (VZ) | 425 | 860 | 1850 |
| Busbar Rising Cabinet (G) | 425 | 860 | 1850 |
| Load Switch-Fuse Combination Cabinet (F) | 500 | 950 | 1650 |
Frequently Asked Questions
Q What is the rated voltage of the GXGN-12 Solid-Insulated Fully Enclosed Ring Main Unit Switchgear?
The rated voltage of the GXGN-12 Ring Main Unit Switchgear is 12 kV, with a rated frequency of 50 Hz. It supports rated currents of 630 A and 1250 A.
Q What switch types are available for this Ring Main Unit Switchgear?
The switchgear is available in multiple switch types: C (Load Switch), V (Circuit Breaker), G (Disconnector), F (Load Switch-Fuse Combination), CB (Load Switch without Grounding), VB (Circuit Breaker without Grounding), and VZ (Circuit Breaker Linked Switch).
Q What is the enclosure protection level of this switchgear?
The enclosure protection level of the GXGN-12 Switchgear is IP4X, providing protection against solid objects greater than 1mm in diameter, suitable for indoor medium-voltage distribution environments.
Q What is the mechanical life of the disconnector and earthing switch?
Both the main disconnector switch and the earthing switch have a rated mechanical life of 3,000 operations, ensuring long-term reliable performance in ring main unit applications.
Q What are the typical cabinet dimensions of the GXGN-12 Ring Main Unit?
Cabinet dimensions vary by model. For example, the Circuit Breaker Cabinet (V/VB/VZ) measures 425mm (W) × 860mm (D) × 1850mm (H), while the Load Switch PT Cabinet (CPT) and Load Switch-Fuse Combination Cabinet (F) measure 500mm (W) × 950mm (D) × 1650mm (H).
Q What operation mechanism does the GXGN-12 Switchgear use?
The GXGN-12 Switchgear uses a Spring-Operated (Energy Storage Type) mechanism, which enables reliable and fast switching operations while ensuring safe and consistent performance under rated conditions.