发明名称 |
Apparatus for harmonic analysis of waveforms in an AC electrical system |
摘要 |
A monitor (1) for an ac electrical system (3) generates on-line a display (21) presenting the values, either in magnitude or as a percent of the fundamental, of 50 harmonics of any of the currents and voltages in the system. The display (21) also incudes the phase angle of each harmonic relative to a reference waveform, which is preferably phase A-B voltage or phase A to neutral voltage. <IMAGE>
|
申请公布号 |
EP0793108(A2) |
申请公布日期 |
1997.09.03 |
申请号 |
EP19970102692 |
申请日期 |
1997.02.19 |
申请人 |
EATON CORPORATION |
发明人 |
COX, ROGER WILLIAM;ELMS, ROBERT TRACEY |
分类号 |
G01R19/25;G01R23/20;G01R29/00;(IPC1-7):G01R23/20 |
主分类号 |
G01R19/25 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|