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1.发明授权PROCEDE DE DETERMINATION DE L INSTANT DE FERMETURE D UN DISJONCTEUR SUR UNE LIGNE HAUTE TENSION 有权程序用于确定SCHLIESSMOMENTS断路器开关ON高压线
公开(公告)号：EP1609163B1
公开(公告)日：2009-03-25
申请号：EP04742825.5
申请日：2004-04-01
申请人： AREVA T&D SA
IPC分类号： H01H9/56
摘要： The invention relates to a method for determining the moment of closure of a circuit breaker in a three-phase high-voltage electric network after contact (7A, 8A, 7B, 8B, 7C, 8C) separation in the presence of an error in one of the three phases A, B or C. Determination of the moment of closure comprises the following stages: measurement of voltages ULA0, ULB0 and Ulc0, measurement of voltage USA0, determination of voltage US A0, US B0 and US c0, calculation of the differences ULAB, ULAC and ULBC, calculation of the differences USAB, USAC and USBC, determination of the moment of closure on the basis of the voltage differences.
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2.发明公开PROCEDE DE DETERMINATION DE L INSTANT DE FERMETURE D UN DISJONCTEUR SUR UNE LIGNE HAUTE TENSION 有权程序用于确定SCHLIESSMOMENTS断路器开关ON高压线
公开(公告)号：EP1609163A1
公开(公告)日：2005-12-28
申请号：EP04742825.5
申请日：2004-04-01
申请人： Areva T & D SA
IPC分类号： H01H9/56
摘要： The invention relates to a method for determining the moment of closure of a circuit breaker in a three-phase high-voltage electric network after contact (7A, 8A, 7B, 8B, 7C, 8C) separation in the presence of an error in one of the three phases A, B or C. Determination of the moment of closure comprises the following stages: measurement of voltages ULA0, ULB0 and Ulc0, measurement of voltage USA0, determination of voltage US A0, US B0 and US c0, calculation of the differences ULAB, ULAC and ULBC, calculation of the differences USAB, USAC and USBC, determination of the moment of closure on the basis of the voltage differences.
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