发明名称 |
Multi-function counter incorporating electricity meters |
摘要 |
The counter has a respective electricity meter (20,21,22) for each phase, providing output pulses with a frequency (fr, fs,ft) proportional to the power of the corresponding phase. The measuring stage (21) for each phase indicates a phase loss when no zero transitions of the phase voltage are detected and is followed by a respective evaluation stage with a pulse duration decoder for activating a phase loss display.
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申请公布号 |
CH687423(A5) |
申请公布日期 |
1996.11.29 |
申请号 |
CH19930002391 |
申请日期 |
1993.08.12 |
申请人 |
LANDIS & GYR TECHNOLOGY INNOVATION AG |
发明人 |
NIEPOLOMSKI, ANDRZEJ;RICCIARDI, BRUNO;IMFELD, JOE |
分类号 |
G01R19/25;G01R21/133;G01R22/00;(IPC1-7):G01R11/16;G04G15/00;H02H3/26 |
主分类号 |
G01R19/25 |
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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