发明名称 |
PERFECCIONAMIENTOS EN CONTADORES TRIFASICOS ELECTRONICOS DE ELECTRICIDAD PARA EL CAMBIO DE CARGA DE CONDENSADOR |
摘要 |
<p>An electronic multiphase watt-hour metering system containing time-division multiplying circuitry. A duty cycle modulator and a switching device are provided for each phase of interest, the output signals of which are combined and conducted to a current-to-frequency converter. The output frequency of the current-to-frequency converter is responsive to the rate of electrical power consumption from a multiphase transmission system. In one embodiment, the current-to-frequency converter is coupled at its output to an accumulating counting system for recording the total energy supplied to a load. There may further be provided an indicator responsive to the frequency of the current-to-frequency converter for providing a visual indication of the instantaneous rate of power usage.</p> |
申请公布号 |
ES495198(D0) |
申请公布日期 |
1981.06.01 |
申请号 |
ES19980004951 |
申请日期 |
1980.09.19 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT,DE BERLIN Y MUNCHEN |
发明人 |
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分类号 |
G01R22/00;G01R21/127;(IPC1-7):01R11/00;01R21/06 |
主分类号 |
G01R22/00 |
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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