KGN Fixed Metal-clad Switchgear Overview KGN -12 fixed metal-clad switchgear(short for switchgear as below) applies to 3.6~12KV, 3 phase AC 50/60Hz network for receiving and distributing power energy and also for control, monitor and protection. It ca n be used in s ingle busbar, single busbar section system. It is manufactured accords to IEC62271-200& GB3906 3~35KV AC Metal Enclosed Switchgear, DL404 Order Specification for Indoor AC HV Switchgear and so on. It has reliable prevention function against false operation. Ambient condition 1. Ambient temperature: -10 ~40 ; daily average: 35 ; 2. Altitude: 1000m 3. Relative humidity:daliy average: 95%,monthly average: 90% 4. Earthquake intensity: 8 degree; 5. Applicable occasions should be free from inflammables, explosives,corrosives and severe vibration. Techincal parameterNo.ItemUnitData1Rated voltagekv122Rated currentA630, 12503Rated peak withstand currentKA50, 63, 804Rated short time withstand currentKA20, 25, 31.55Rated short circuit breaking current breaking timeTIEMS306Mechanical lifeTIMES300007Rated short circuit continuous timeS48Rated short circuit breaking currentKA20, 25, 31.591 min P.F. withstand voltageKV42(phase to earth)48 (across open contacts)10Lightning impulse withstand voltage75(phase to earth)80 (across open contacts)11Dimension(WxDxH)mm800x1100x238012Protection degreeIP4X
