发明名称 |
PROTECTION RELAY SYSTEM AGAINST SINGLE-PHASE FAULTS FOR MEDIUM-VOLTAGE DISTRIBUTION NETWORKS |
摘要 |
The electrical power distribution network comprises a medium-voltage feeder having an upstream end intended to be connected to a power source. The feeder includes at least first and second consecutive protection relays positioned along the feeder and defining the ends of a first element to be monitored. The first protection relay includes a search module configured to trip a breaker to interrupt the electrical power distribution: after a first time delay when the search module detects a single-phase permanent fault in a monitoring area of the first element; and after a second time delay longer than the first time delay when the search module detects a single-phase permanent fault in an additional monitoring area located downstream of the area. |
申请公布号 |
US2014098450(A1) |
申请公布日期 |
2014.04.10 |
申请号 |
US201314046215 |
申请日期 |
2013.10.04 |
申请人 |
ELECTRICITE DE FRANCE;SCHNEIDER ELECTRIC INDUSTRIES SAS |
发明人 |
JECU CRISTIAN;ALIBERT PHILIPPE;RAISON BERTRAND;CHILARD OLIVIER |
分类号 |
H02H3/40 |
主分类号 |
H02H3/40 |
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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