Basic Electrical Measurements |
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31 pages matching current transformer in this book
Page vii
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Contents
DEVELOPMENT OF THE ELECTRICAL UNITS | 1 |
EXPERIMENTAL PROCEDURES ERRORS | 13 |
AIDS TO COMPUTATION | 39 |
Copyright | |
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accuracy adjustment ammeter amount application arrangement balance bridge burden calibration capacitance carry cause cell cent circuit coil comparison component computed connected constant construction correct Courtesy current transformer curve cycles damping deflection depends desired detector determined diagram dial direction effect electrical element equal equation error factor field Figure Find flux frequency galvanometer given gives greater ground impedance important increase indicated inductance instrument limit load magnetic material means measurements ment meter method moving needed obtained ohms operating parallel particularly phase angle placed pointer position possible potential potentiometer primary produced quantity R₁ range ratio reading Reference represents resistance resistor resonant result scale secondary sensitivity shield shown in Fig shows shunt standard temperature terminals torque transformer turns units unknown usually voltage voltmeter wattmeter winding wire zero