Important FeaturesXGN55-27.5 GIS has independent intellectual
property rights, owns two inventions, four practical new-type
patents.XGN55-27.5 GIS designs refer to GB3906,TB/T2803 and EN
standard etc, and has completed all type tests.Using SF6 gas
insulated and vacuum interrupter technology and touching-type solid
interface insulated voltage transformer and surge arrester. The
design is modular with high degree of integration and
miniaturization.The life of three position switch can be up to
10000 times.All high voltage components are sealed in a low
pressure SF6 gas filled stainless steel cabinets with laser cutting
and laser welding technology to ensure excellent are tightness.The
switchgear has the advantage of high reliability, economical and
practical, flexible combination, few maintenance.The switchgear is
safe and can be used at different conditions of different
altitudes, temperature, humidity, and pollution and condensation
site.According to the special requirements of passenger dedicated
line, the switchgear can be run 20 minutes at least when the
current is up to 4000A.Technical Specification:XGN55-27.5 Gas
Insulated Switchgear for Railway UseItemUnitDataRated
VoltageKV1X27.5 2X27.5Maximum VoltageKV1X31.5
2X31.5Rated FrequencyHz50Rated Power Frequency Withstand VoltageTo
EarthKV110Between Poles150Isolation Across120Lighting Impulse
Withstand VoltageTo EarthKV250Between Poles225Isolation
Across2755min Power Frequency Withstand Voltage (Zero In
Voltmeter)To Earth 95Between Poles 140Isolation
Across 118Rated CurrentA1250-3150Rated Short Time Withstand
Current (4s)KA31.520 Min Maximum CurrentA4000Rated Peak Withstand
Current KA80Insulated Gas Type SF6Leakage Rate/Year
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