GN19 indoor isolating switch is used in three-phase power system with AC 50Hz and voltage 12kV. It is used for dividing and combining circuits with voltage and no load.
environmental conditions 1. Ambient air temperature: upper limit +40ºC, lower limit -30ºC. 2. Altitude: ≤1000m. 3. Relative humidity: daily average is not more than 95%, monthly average is not more than 90%. 4. No frequent violent shaking. 5. Pollution level: 3. 6. There is no danger of fire, explosion and chemical corrosion.
the main structure The conducting part is mainly composed of the stylus and static contacts, the static contacts are installed on the pillar insulators at both ends, and each stylus is composed of two groove pictures. It not only increases the heat dissipation area of the stylus, which is conducive to reducing temperature rise, but also improves the mechanical strength of the stylus and the dynamic stability of the switch. One end of the stylus is installed on the static stylus through the shaft pin (bolt). The other end of the contact cutter can be separately connected with the static contact, and the contact pressure of the contact cutter is maintained by the contact spring at both ends. Base frame assembly: composed of base frame spindle and limit plate, limit plate is mainly used to ensure that the conductive contact "split" and "close" to get the required end position.
Complaint
