Medium Voltage SF6 Gas Insulated Switchgear(GIS)
JLGTRM-12 medium voltage solid insulated ring main unit is a complete set of power distribution device of 3.6-12kV,three-phaseAC 50/60Hz,single bussection system.
Main Technical Parameters
| Item | Unit | Parameter | |||
| Rated voltage | KV | 12 | |||
| Rated frequency | Hz | 50 | |||
| Rated current | A | 630 | 1250 | ||
| Rated insulation level | Power frequency withstand voltage |
Across open contacts | KV | 48 | |
| Phase to phase | KV | 42 | |||
| Phase to earth | KV | 42 | |||
| Lightning impulse withstand voltage |
Across open contacts | KV | 85 | ||
| Phaseto phase | KV | 75 | |||
| Phase to earth | KV | 75 | |||
| Rated short circuit breaking current(1s | KA | 25 | 31.5 | ||
| Rated shorttimewithstand current(4s) | KA | 25 | 31.5 | ||
| Rated peak withstand current(lp) | KA | 63 | 80 | ||
| Rated short circuit making current(Ima) | KA | 63 | 80 | ||
| Enclosure protection degree | IP4X | ||||
| Operation method | Spring stored energy | ||||
Product Description
JLGTRM-12 medium voltage solid insulated ring main unit is a complete set of power distribution device of 3.6-12kV,three-phaseAC 50/60Hz,single bussection system.
The ring main unit has the characteristics of simple structure,flexible operation,reliable interlocking,andconvenient installation.It can provide satisfactorytechnical solutions for various applications and differentusers.The adoption of sensor technology,automatic control technology,and information technology,coupledwith advanced technical performance and simple and flexible assembly schemes,can meet the ever-changing needsof the marketand be suitable for the intelligent requirements of the power grid.
The ring main unit is suitable for 50Hz,12kV power systems,and is widely used in industrial and civil cablering networks and distribution network terminal projects.As the reception and distribution of electric energy,it is especially suitable for power distribution in urban residential areas,small secondary substations,switching stations,cable branch boxes,box-type substations,industrial and mining enterprises,shoppingmalls,airports,subways,wind power generation,and hospitals,stadiums,railways,tunnels and other places.Because the product has the advantages offull insulation,full sealing,and full shielding,it is especiallysuitable for usein areaswith highaltitude,high temperature,damp heat,severe cold,andserious pollution.
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