XGN15-12/24 series unit type metal-enclosed ring network switchgear is based on FLN port-12/24 type SF6 load switch as the main switch and the whole cabinet is air-insulated, suitable for distribution automation, compact and scalable metal Closed ring network switchgear. It has the characteristics of simple structure, flexible operation, reliable interlocking and convenient installation. For a variety of different applications, different user requirements can provide satisfactory technical solutions.
The main switch of XGN15-12/24 series unit type metal-enclosed ring network switchgear adopts the FLN36-12/24 type produced by our company or the SFG type SF6 load switch produced by ABB company, and can also be equipped with VS1 type, VD4/S type, ISM type vacuum circuit breaker or HD4/S5 type SF6 circuit breaker. The load switch and circuit breaker can be operated manually or electrically, and the power distribution automation function can be realized after selecting the electric operating mechanism, PT, CT, FTU and communication device.
|Rated demand impulse withstand voltage||phase to phase, phase to earth||KV||75||125|
|Primary isolation fracture||KV||85||145|
|1min power frequency withstand voltage||phase to phase, phase to earth||KV||42||65|
|Primary isolation fracture||KV||48||79|
|Rated current||Main Busbar||A||630||630|
|Rated short-circuit withstand current||Main circuit||KA||20||20|
|Rated short-circuit withstand current duration||S||4*||4|
|Rated peak withstand current||KA||50**||50|
|Load switch mechanical life||Time||>5000||>5000|
|Earthing switch mechanical life||Time||>2000||2000|
|Load break switch cabinet||Cabinet width||mm||375, 500, 750||600|
|Cabinet height||mm||1635, 1885||2000|
|Low voltage room||Height||mm||350, 450||710|
|circuit breaker cabinet||Cabinet width||mm||800||–|
Note: *The parameter of the ring main unit assembled with ABB’s SFG switch (upper unit) is 25KA/2S
The parameters of the ring main unit assembled with ABB’s SFG switch (upper unit) are 63KA
The load break switch used is a separate unit, inside filled with SF6 has as insulation meaium, wren aisunguisnea teatures of long service nte, nign parameters, tree of poiiuuon and little maintenance;
2. The enclosure consists of premium Aluminum zinc coated sheet steel, which makes it an ti-corrosion, anti-oxidation, more artistic and novel in structure;
3. Spring charging operation, three-phase tree trip, five-proot interlock and operation meth anism as a whole, safe and reliable linkage;
4. The ring main unit can easily form ring network power supply unit or otherforms of wiring, and enjoy great extendibility;
5. SF6 load break switch is used with safe and reliable comprehensive properties, free of oil and poison as well as risks of explosion or fire disasters.
6. The design would be used as a combined cabinet along with KYNzB-iz(GZSI) central-in-stalled switchgear.
XGN15-24 RMU Outline installation dimension
1. Altitude: no more than 1000m;
2. Ambient temperature: maximum temperature +40℃, minimum temperature -35℃;
3. Environmental humidity: the daily average does not exceed 95%; the monthly average does not exceed 90%;
4. Earthquake resistance: 8°
5. There is no explosive and corrosive gas in the surrounding air, and there is no severe vibration and shock in the installation site.
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