| Customization: | Available |
|---|---|
| Certification: | CCC, ISO9001 |
| Shell Material: | Steel Plate |
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The ZHENGXI XGN2-12 Ring Main Unit (RMU) is a high-performance, metal-enclosed, air-insulated switchgear designed for 12kV three-phase AC 50Hz power distribution systems. Engineered with precision for environments requiring frequent operations, the RMU utilizes advanced vacuum circuit breakers and rotating-style isolation switches to ensure optimal electrical performance, safety, and reliability.
This Ring Main Unit adheres to both national (GB3906) and international (IEC298) standards, with protection ratings up to IP4X, making it the ideal solution for medium-voltage indoor power systems. With enhanced mechanical interlocking and advanced insulation technology, the ZHENGXI XGN2-12 RMU delivers robust, flexible solutions tailored for today's evolving power infrastructure.
| Item | Unit | XGN15-12(F) / 630-20 | XGN15-12(F.R)/T125-31.5 |
|---|---|---|---|
| Rated Voltage | kV | 12 | 12 |
| Rated Current | A | 630 | 125 |
| Rated Frequency | Hz | 50 | 50 |
| Rated Frequency Withstand Voltage | kV | 42/48 | 42/48 |
| Rated Impulse Withstand Voltage | kV | 75/85 | 75/85 |
| Rated Active Load Breaking Current | A | 630 | - |
| Closed-Loop Distribution Circuit Current | A | 630 | - |
| Short-Circuit Making Current (Peak) | kA | 50 | 80 |
| Peak Withstand Current | kA | 50 | 50 |
| Short-Time Withstand Current | kA | 20 | 20 |
| Short Circuit Duration | s | 4 | 4 |
| Rated SF Gas Pressure (20°C) | MPa | 0.04 | 0.04 |
| Loop Resistance | µΩ | ≤200 | ≤400 |
| Mechanical Endurance (LBS/Earthing) | Cycles | 5000/3000 | 5000/3000 |
| Short-Circuit Breaking Current | kA | 20/50 | 31.5/50 |
| Transfer Current | A | - | 1750 |
| Protection Degree | - | IP4X | IP4X |
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