Chapter 31
Metering of Electric Power and Energy
31.1 The Electromechanical Meter 31-1
Single Stator Electromechanical Meter
31.2 Blondel’s Theorem 31-2
31.3 The Electronic Meter 31-3
Multifunction Meter • Voltage Ranging and Multiform Meter • Site Diagnostic Meter
31.4 Special Metering 31-5
Demand Metering • Time of Use Metering • Interval Data Metering • Pulse Metering • Totalized Metering
31.5 Instrument Transformers 31-10
Measuring kVA
31.6 Defining Terms 31-11
Further Information 31-12
John V. Grubbs
Alabama Power Company
Electrical metering deals with two basic quantities: energy and power. Energy is equivalent to work. Power is the rate of doing work. Power applied (or consumed) for any length of time is energy. In mathematical terms, ...
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