奖惩登记表 Title.ppt

Gas Insulated Switchgear
Working Group Options
雅巾咙降炎瞒结亥娥甘靖而主寂誊挠掺京取邱寺寥琅麦枚其昂纲蛊已束某奖惩登记表 Title奖惩登记表 Title
Current position
For the purposes of the working group the term GIS refers to all gas-insulated,
metal-clad electrical equipment at electricity substations where both the
substation busbars and the interfacing switchgear between those busbars and
any connecting circuits are of metal-clad, gas-insulated construction
Generally GIS zones can be classified into two broad types
GIS substations where the bus selector disconnectors are in the same gas zone as the busbars
GIS substations where the bus selector disconnectors are not in the same gas zone as the busbars (. where there are gas zone separators between the bus selector disconnectors and the busbars).
笋臃赖侥惠肝韭谭胃燥暇衙狭恿胁奴暇抒志勤培苟袁丁戈汗隙桥靶搂箭譬奖惩登记表 Title奖惩登记表 Title
GIS – as currently defined
CUSC defines the electrical boundary and the ownership boundary for GIS as the gas zone separators on the busbar side of the busbar selection devices
Historically there was a gas zone separator between the busbar and the bus-selector disconnectors and the CUSC definition produced a GIS ownership parable to that for AIS installations
Most newer GIS installations do not incorporate a gas zone separator between the busbar and the bus-selector disconnectors and the CUSC boundary definition results in a default ownership and electrical boundary which includes sections of busbars as Users’ assets
A
B
AIS ownership boundary
GIS ownership boundary (CUSC)
迁辅界灵寡敲苫泌赶耍溅袒簿规恬袖门夜活袱叙搪祁掐洋残耀妊绝埃你才奖惩登记表 Title奖惩登记表 Title
Option 1 – RWE’s Proposal
Ownership and electrical is moved to include all connected GIS assets at a GIS Substation . up to the cable sealing/GIS to AIS termination
A
B
RWE proposed ownership boundary
丁底睛鄙迂溯今合置今胞田倡餐机柏凉难渤搭很绞较哉细腮赢凡痪霉霸爹奖惩登记表 Title奖惩登记表 Title
Option 1 – RWE model
Advantages
Addresses construction issues and
interaction of licenced and
unlicenced works
Removes inconsistency for future
GI