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