Training Sessions
Polyphase Systems – 6 minutes Defines polyphase and describes how the parts of a polyphase system are distinguished from one another. Describes how a polyphase system is different from a single-phase system. Gives examples of where polyphase systems exist in a utility’s operating system.
Wye Systems – 6 minutes Using diagrams, describes the characteristics of a wye-connected system.
Delta Systems – 7 minutes Using diagrams, describes the characteristics of a delta-connected system.
Transformer Connections – 7 minutes Describes transformer connections for: Three-phase, four-wire wye-connected polyphase systems Three-phase, three-wire closed delta-connected polyphase systems Three-phase, four-wire closed delta-connected polyphase systems Three-phase, three-wire open delta-connected polyphase systems Three-phase, four-wire open delta-connected polyphase systems
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