Summary
HXGN11-12 HV Switchgear Metal-clad AC Ring Main Unit(RMU) is a new HV apparatus which is introduced from aboard and accords with the requirements of rural and city power distribution & transmission system. This product has passed the type test report and all the performances have already satisfied the requirements of IEC 62271-200 Standard <<1KV-52KV AC HV Metal-clad Switchgear and its Controlling Equipments>>. It has reliable anti-misoperation function, and the protection degree is IP3X. It applies to the 12kV, three phases, 50/60Hz power distribution systems in such occasions: Enterprises, Mining places, High buildings, Residence community, School, Park, etc.
Ambient condition
- Ambient temperature: -10℃ ~+40℃；
- Altitude: ≤1000m；
- Relative humidity: ≤90%(Month mean value);≤ 95%(+25℃ )(Daily mean value);
- Occasions without flammable and explosive matter, without corrosive chemical and frequent severe vibration, without strong shake.
Model
Product feature
The meter’s compartment is insulated by metal partitions board from the main busbar compartment and others, so it is saftelyfor usage.
Set metal partitions board with in the disconnect gaps, and it is intergrated with earthing swit ch: when the eart hing switc h isclosed, it is disconnecting the isolating gaps, so it is very reliable, safety and easily for maintanence;
Spring energy storage operating: when the HV fuses blew, all the three phases will shed automatically;
The mechanical interlock satisfy the ‘5 protection’ requirements.
The switchgear can be as RMU power supply unit or other connection types very easily, and it is also can be extended very easily;
Use the vacuum load break for breaking and closing, so it is reliable and safety.
The structure of the switchgear is simple, it has beautiful appearance, and can be operated easily by both manual and motor.
Technical specification
| No . | Item | Unit | Parameter |
| 1 | Rated voltage | kV | 12 |
| 2 | Rated frequency | Hz | 50 |
| 3 | Main busbar rated current | A | 630 |
| 4 | Rated short-time withstand current( Functional unit) | kA/S | 20/3 |
| 5 | Earthing circuit rated short time withstand current | kA | 20/2 |
| 6 | Rated peak withstand current | kA | 50 |
| 7 | Earthing circuit rated peak withstand current | kA | 50 |
| 8 | Main/earthing circuit rated short circuit making current(Peak) | kA | 50 |
| 9 | Fuse breaking current | kA | 31.5 |
| 10 | Mechanical life | Times | 5000 |
| 11 | 1 min P.F withstand voltage | kA | 42/48 |
| P to E, P to P/ Across open contacts (Valid value ) | |||
| 12 | Lightning impulse withstand voltage | kA | 75/85 |
| P to E, P to P/ Across open contacts (Peak value ) | |||
| 13 | Secondary circuit 1 min P.F. withstand voltage | kA | 2 |
| 14 | Outline dimension(WxDxH) | mm | 650x850x1900 |
| 15 | Net weight | Kg | 160 |
| 16 | Package outline dimension(WxDxH) | mm | 800x1000x2000 |
| 17 | Gross weight | Kg | 220 |
Outline and dimension
HXGN11-12 HV Switchgear Metal-clad AC Ring Main Unit(Feeder)
1. Insulation insert board 2. Anti-explosion abservation window 3. Primary cable buck
4. Dry type CT 5. Operation mechanism 6. LBS and fuse combination apparatus
7. Main busbar compartment 8. Busbar bushing 9. Press releasing device.