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|Altitude:||Up To 3000m||Rated Voltage:||40.5|
|Rated Current:||630A||Rated Current Of Fuse:||50A|
gas insulated switchgear,
high voltage electrical switchgear
40.5Kv Sf6 RMU Switchgear Gas Insulated Combined Apparatus with 3units
a. Equipped with load switch, load switch +fuse composite apparatus and circuit breaker function unit, its function is very complete.
b. It has multi-function common box type and external busbar extension type for choice , it can realize flexible combination of multiple scheme.
c. Small volume, low weight, minimum volume for one single is 500*1000*1750(mm). It is convenient for transportation, carry and installation.
d. It is suitable for the place which has high demand on space, such as wind generator tower.
e. Easy operation, safe using, convenient maintenance, the switchgear can service for 30 years without maintenance.
f. The switchgear is designed to be omniseal without exposed live part and can run for a long time in the severe environment.
|Rated Current||A||630 1250 2000 2500|
|Rated Power Frequency Withstand Voltage (1min)||V||95||65|
|Rated Lightning Impulse Withstand Voltage||V||185||125|
|Rated Short-circuit Breaking Current||kA||20 25 31.5|
|Rated Short-circuit Making Current||kA||50 63 80|
|Rated Short-time Withstand Current||kA||20 25 31.5|
|Rated Peak Withstand Current||kA||50 63 80|
|Rated Duration of Short-circuit||s||4|
|Enclosure Protection Class (Gas-filled Enclosure/HV Cabinet)||IP67/IP4X|
|Main Circuit Resistance of Each Phase||μΩ||≤250|
|SF6 Gas Rated Operating Pressure (Gage Pressure for 20℃ )||Mpa||0.05|
|SF6 Gas Minimum Operating Pressure (Gage Pressure for 20℃)||Mpa||0.02|
|SF6 Gas Annual Gas Leakage Rate||％||≤1|
|Rated Auxiliary Circuit Operating Voltage||V||DC110/220|
|Enclosure Dimension (Width*Depth*Height)||mm||(600～1200)*1400*2500|
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