发明公开
EP0853364A3 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
- 专利标题： Method for measuring a single electrical power load in electrical distribution networks
- 专利标题（中）： 一种用于在电力供应网络测量单个用户负载方法
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申请号： EP97203863.2申请日： 1997-12-10
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公开(公告)号： EP0853364A3公开(公告)日： 1999-10-20
- 发明人: Mariani, Maurizio , Lorito, Fabrizio
- 申请人： ABB SACE S.p.A.
- 申请人地址： Via Baioni, 35 I-24100 Bergamo IT
- 专利权人： ABB SACE S.p.A.
- 当前专利权人： ABB SACE S.p.A.
- 当前专利权人地址： Via Baioni, 35 I-24100 Bergamo IT
- 代理机构： Giavarini, Francesco
- 优先权： ITMI962579 19961210
- 主分类号： H02H7/26
- 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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