Description
Overview
XGN15-12(SF6)Unit type ACmetal-enclosed ring main unit(hereafter refertoasring network cabinet)isa new generation ofhigh-pressure ele ctric appliance product designed and developed independently by our own company according to the requirement of the domestic agricultural electricity and the city net transformation after introduction of overseas advanced technology. Each technical performance index completely reaches the IEC298 and GB3906 standard.
The loop-net cabinets main switch, the operating mechanism and the components is made of the ABB Corporation original piece or the SFL-12/24 switch equipment imported overseas and ass- embled at home. We can also install the ABB Corporation original piece of HAD/US type SF according to the request of users. The circuit breaker or the VD4-Svacuum circuit-breaker divide into two kinds: be operated manually and electrically according to the operating mode. This product has the remarkable characteristies such as the small volume, light weight, artistic appearance, simple operation, long life, high parameter with no pollution and ltte maintenance. This product has the remarkable characteristies such as the small volume, light weight, artistic appearance, simple operation, long life, high parameter with no pollution and ltte maintenance.
Model and meaning
Use environmental conditions
1 .Ambient air temperature: -15ºC~+40ºC ;
2.Altitude: ≤1000m;
3.Relative humidity: daily s 95%, mon thly ≤ 90%;
4.Seismic intensity: ≤ Ms8;
5.The installation site should be free of fire, explosive danger,serious pollution,chemical corrosion or severe vibration.
6.Nole: Please negotiate with us if your product is used beyond the range of above conditio
The main technical parameters| Name | Unit | Value |
| Rated voltage | KV | 12 |
| Rated frequency | HZ | 50 |
| Max rated current of main busbar andfuse | A | 630/1250 |
| Max rated current of main busbar andfuse Rated shirt time withsfand current of main | KA/s | 20/3 |
| Main loop, carthed loop maximum endurable rated currentRated withstand cnrrent of main loop and | KA | 50 |
| Main lop. earthed loop short circuit on- and off rated crrentRated short- circuif on- ofl urrent of main time withsfand urrent of main | KA | 50 |
| the opening times of the load switch wit h full capacity | times | 100 |
| The fused breaker opening the current Breaking current of fuse | KA | 31.5/40 |
| Rated closed loop breakingcurrent | A | 630 |
| Rated shift current | A | 1600 |
| Machine' life Mechanical life | times | 2000 |
| 1min line frequency resistance (peak valuc) recurrence, to the earth/isolation fracture | kv | 42/48 |
| Lighting impulse W ithstand vohage(peak value) recurrence, to the earth/isolation fracture | kv | 75/85 |
| Secondary loop lmin power frequenly withsfand volfage | kv | 2 |
| Protection level | | IP3X |
Structural features and working principleThe outline structure of the product is referred to as diagram 1 and diagram 2; the installation dimension is referred to as diagram3. This ring network type cabinet makes air as the The outline structure of the product is referred to as diagram 1 and diagram 2; the installation dimension is referred to as diagram3. This ring network type cabinet makes air as the
1. Incoming cabinet scheme
There is aZFN-10/630 type vacuum load switch on the main cireuit inside the cabinet with isolating knife, and grounding knife conditionally. The three of them are all installed in one machine stand and there are interlocks among them, so that it is realized to connect the operation of three working stations of bus, isolation and grounding. Inside the cabinet the com-ponents such as CT, PY are available.
2.Outgoing cabinet scheme
ZFN-10/630 type vacuum load switch, fuse with striker (used as isolating switch) and grounding knife on the main circuit inside the cabinet, and the three working stations oper-ation can be realized. Inside the cabinet the components such as CT/PT and ZNO arrester are available, so the metering cabinet can be omitted. Inside the incoming cabinet and out-going cabinet, there is insulating protecting bafle interlocked with grounding switch. And inside the cabinets ,the mechanical interlocks are adopted between each switch and bafle .as well as the cabinet door with the requirement of"five-prevention" and IP2X of the protection degree of the cabinet enclosure.
Complaint
