发明名称 |
A METHOD AND AN APPARATUS FOR PROTECTING A BUS IN A THREE-PHASE ELECTRICAL POWER SYSTEM |
摘要 |
In the field of three-phase electrical power systems there is a need for an improved method and apparatus for protecting a bus which obviate the prob lems associated with conventional bus protection schemes. A method of protec ting a bus (16) in a three-phase electrical power system comprises the steps of (a) sampling voltage values and current values of each phase of the or e ach power system element (14) within a predefined protection zone; (b) analy sing at least one sampled voltage value of each phase of a power system elem ent (14) within the protection zone to detect when a fault condition arises; (c) on detection of a fault condition, determining whether the fault condit ion has arisen because of a bus fault; and (d) electrically isolating the bu s (16) from the or each power system element (14) within the protection zone when a bus fault is determined so as to clear the bus fault.
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申请公布号 |
CA2671867(A1) |
申请公布日期 |
2008.06.19 |
申请号 |
CA20062671867 |
申请日期 |
2006.12.14 |
申请人 |
AREVA T & D UK LIMITED |
发明人 |
THOLOMIER, DAMIEN;AUPERRIN, FREDERIC;PASSET, ROLAND;APOSTOLOV, ALEXANDER |
分类号 |
H02H7/22;H02H3/38 |
主分类号 |
H02H7/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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