Line and Phase Voltages for a Wye Circuit
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Transcript of Line and Phase Voltages for a Wye Circuit
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Line and Phase Voltages for a Wye Circuit
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Currents for a Wye Circuit
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Line and Phase Currents for a Delta Load
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The Single-Phase Equivalent
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Summary
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EXAMPLE 23–6
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Single phase equivalent
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EXAMPLE 23–8
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Single phase equivalent
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Solution
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Find the currents.
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EXAMPLE 23–10
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Single phase equivalent
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Power in a Balanced System
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Active Power to a Balanced Wye Load
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Reactive Power to a Balanced Wye Load
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Apparent Power
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Power Factor
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EXAMPLE 23–11
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Solution
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Solution (cont.)
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Solution (cont.)
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Power to a Balanced Delta Load
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Power Formulas for Balanced Wye and Delta Circuits
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EXAMPLE 23–12
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Solution
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Power and the Single-Phase Equivalent
EXAMPLE 23–13
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single-phase equivalent
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Measuring Power in Three-Phase Circuits
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Three-wattmeter connection for a 4-wire load
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Two-wattmeter connection
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EXAMPLE 23–14
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Solution
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Unbalanced Load
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EXAMPLE 23–16
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EAB = 208 V 0° and E∠ BC = 208 V 120°.∠
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EXAMPLE 23–17
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EXAMPLE 23–18 wattmeter readings?
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Circuit Analysis Using Computers
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