AC Power Theory

• An Introduction to AC Power
  • Understanding AC Power
  • Resistive Loads
  • Partially Reactive Loads
  • Real Power, Reactive Power and Apparent Power
  • Determining the Direction of Power Flow
  • To Sum Up
  • Further Reading
• AC Power Theory - Arduino Maths
  • Instantaneous Voltage and Current
  • Calculating Real Power on an Arduino
  • Root-Mean-Square (RMS) – Voltage
  • Root-Mean-Square (RMS) – Current
  • Apparent Power
  • Power Factor
  • EmonLib
• AC Power Theory - Advanced Maths
  • Real Power
  • RMS Voltage and Current Measurement
  • Apparent Power and Power Factor
  • Harmonics, Non-Linear Loads and Power Factor
  • Adding RMS Values
  • References
• 3-Phase Power
  • History
  • What is Three Phase Power?
  • Naming
  • Identifying a 3-Phase Supply
  • Mathematics of a 3-Phase Supply
  • Effect of Unbalanced Loads
  • Measuring 3-Phase Power with an emonTx V2 or emonTx V3.x
  • Measuring 3-Phase Power with an emonTx4 and emonVs
  • Using the emonTx4 on a 3-wire, 220 V System
  • An Approximate Method to Estimate 3-Phase Power with an Unmodified emonTx V2 or emonTx V3.x
  • Dangers
• Use in North America
  • Supply Characteristics – UK
  • Supply Characteristics – North America
  • Part 1: Using an emonTx V2 or emonTx V3.x
  • Part 2: Using an emonTx4 and emonVs
  • Customer Generated Energy
  • Metering
  • Why the Need for an Energy Diverter?
  • Changes for MartinR’s PLL Energy Diverter
  • Changes for Robin Emley’s Energy Diverter
  • Glossary / Translation