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Title: Monitoring of power frequency deviation to milihertz resolution
Authors: Liew, A.C. 
Teh, C.N.
Teo, T.T.
Issue Date: Oct-1984
Citation: Liew, A.C.,Teh, C.N.,Teo, T.T. (1984-10). Monitoring of power frequency deviation to milihertz resolution. Electric Power Systems Research 8 (1) : 93-99. ScholarBank@NUS Repository.
Abstract: A power frequency and frequency deviation monitor, capable of measuring, displaying and recording power frequency f (50 or 60 Hz) and its deviation Δf to millihertz resolution (i.e. 0.001 Hz change about the nominal value), has been developed. Basically it uses the phase locked loop circuit as a frequency multiplier and, with a gate time of 1 s, the results of f and Δf are monitored every 1 s and are output on light-emitting diode (LED) decimal display units, paper chart recorders or in binary form for direct processing in a digital computer. Such information is normally used for power system control action studies. © 1984.
Source Title: Electric Power Systems Research
ISSN: 03787796
Appears in Collections:Staff Publications

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