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1.发明公开Method for measuring a single electrical power load in electrical distribution networks 失效电子邮件电子邮件电子邮件einziger Beninzerslast在elektrischen Energieversorgungsnetzen
公开(公告)号：EP0853364A2
公开(公告)日：1998-07-15
申请号：EP97203863.2
申请日：1997-12-10
申请人： ABB SACE S.p.A.
IPC分类号： H02H7/26 , G01R21/133
摘要： In an electrical distribution network, a measurement of a single electrical power load is obtained. With this objective, the effective value of the voltage (V) and its frequency (f) are measured in the protection and control device (3) of the primary switch of a board (2), while the protection and control device (21) associated with the particular load (10) measures the effective current (I1) and the phase angle (Φ) between voltage and current is determined by measuring the difference between the instant (tl) of zero crossing of the voltage (V) and that (t2) of the current (I1) in the load (10).
摘要翻译： 在配电网中，获得单个电力负载的测量。 为此，在板（2）的主开关的保护和控制装置（3）中测量电压（V）及其频率（f）的有效值，而保护和控制装置（21） 通过测量电压（V）的零交替瞬间（t1）与（V）的瞬时（t1）之间的差异来确定与特定负载（10）相关联的测量有效电流（I1）的电压和电流之间的相位角（PHI） t2）负载（I1）中的电流（I1）。
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2.发明公开Method for measuring a single electrical power load in electrical distribution networks 失效一种用于在电力供应网络测量单个用户负载方法
公开(公告)号：EP0853364A3
公开(公告)日：1999-10-20
申请号：EP97203863.2
申请日：1997-12-10
申请人： ABB SACE S.p.A.
IPC分类号： H02H7/26 , G01R21/133
摘要： In an electrical distribution network, a measurement of a single electrical power load is obtained. With this objective, the effective value of the voltage (V) and its frequency (f) are measured in the protection and control device (3) of the primary switch of a board (2), while the protection and control device (21) associated with the particular load (10) measures the effective current (I1) and the phase angle (Φ) between voltage and current is determined by measuring the difference between the instant (tl) of zero crossing of the voltage (V) and that (t2) of the current (I1) in the load (10).
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