12KV Box Type Fixed SF6 Ring Main Unit
The XGN15-12 box-type fixed AC metal-enclosed switchgear (hereinafter referred to as the ring main unit) is a new type of high-voltage electrical product that we have independently designed and developed by introducing excellent foreign technology and in accordance with the requirements of domestic rural power and urban network renovation.
Product Overview
The XGN15-12 box-type fixed AC metal-enclosed switchgear (hereinafter referred to as the ring main unit) is a new type of high-voltage electrical product that we have independently designed and developed by introducing excellent foreign technology and in accordance with the requirements of domestic rural power and urban network renovation. All technical performance indicators fully comply with IEC62271-200:2003 and GB3906 standards.
The main switch, operating mechanism, and components of the ring main unit use original ABB parts or SFL-12/24 type switchgear assembled domestically with imported components. Additionally, it can be equipped with original ABB HAD/US SF6 circuit breakers or vacuum circuit breakers according to user requirements. The operation modes include manual and motorized operation.
The cabinet is processed by CNC machines and then riveted, achieving a protection level of IP3X, and features reliable mechanical interlocks and anti-misoperation functions. This product is characterized by its compact size, light weight, attractive appearance, ease of operation, long service life, high parameters, environmental friendliness, and low maintenance requirements.
The XGN15-12 box-type fixed AC metal-enclosed switchgear is suitable for use in 50Hz, 12kV power networks, serving as equipment for receiving and distributing electrical energy. The main switch inside the cabinet is an SF6 switch.
Technical Parameters
| No. | Name | Unit | Numerical value |
|---|---|---|---|
| 1 | Rated voltage | kV | 12 |
| 2 | Rated frequency | Hz | 50 |
| 3 | Rated current of main bus / maximum rated current of fuse | A | 630, 125 |
| 4 | Rated short-time withstand current of main circuit and grounding circuit | kA/s | 20, 3 |
| 5 | Rated peak withstand current of main circuit and grounding circuit | kA | 50 |
| 6 | Rated short-circuit making current of main circuit and grounding circuit | kA | 50 |
| 7 | Breaking number of load switch at full capacity | Time | 100 |
| 8 | Fuse breaking current | kA | 31.5, 40 |
| 9 | Rated closed-loop breaking current | A | 630 |
| 10 | Rated transfer current | A | 1600 |
| 11 | Mechanical life | Time | 2000 |
| 12 | 1 min power frequency withstand voltage (peak) relative, ground / isolation fracture | kV | 42, 48 |
| 13 | Lightning impulse withstand voltage (peak) interphase, ground / isolation break | kV | 75, 85 |
| 14 | 1min power frequency withstand voltage of secondary circuit | kV | 2 |
| 15 | Protection grade | — | IP3X |
| No. | Name | Unit | Numerical value |
|---|---|---|---|
| 1 | Width of circuit breaker cabinet | mm | 750 |
| 2 | Other cabinet width | mm | 375, 500 |
| 3 | High | mm | 1600, 1850 |
| 4 | Deep | mm | 980, 900 |
| 5 | Relay box high | mm | 450 |
Structure Diagram
