Important Facts:
- The conductors connected to the three points of a three-phase source or load are called lines.
- The three components comprising a three-phase source or load are called phases.
- Line voltage is the voltage measured between any two lines in a three-phase circuit.
- Phase voltage is the voltage measured across a single component in a three-phase source or load.
- Line current is the current through any one line between a three-phase source and load.
- Phase current is the current through any one component comprising a three-phase source or load.
- In balanced “Y” circuits, line voltage is equal to phase voltage times the square root of 3, while line current is equal to phase current.
- Three-phase wye “Y” connection has three voltage sources connected to a common point.
Three-Phase Connections Involving Delta Sources or Loads
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Reflection:
I have learned the different types of three phase connections and how they are produced by generators.
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