3-phase WYE example

# 3-phase WYE example - Using VAN as the reference calculate...

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EE369 – Industrial Automation 3-phase Wye System basics THREE PHASE BALANCED Y-CIRCUIT Given loads: Phase (A)=25 0 ° Phase (B)=25 0 ° Phase (C)=25 0 ° Line voltage = 600 Volts Phase sequence: ABC Using VBC as the reference, calculate all the voltages and currents. V A B =600 +120 ° Volts V B C =600 0 ° Volts V C A =600 -120 ° Volts V AN =347 90 ° Volts V BN =347 -30 ° Volts V CN =347 -150 ° Volts I LA =347 90 ° V ÷ 25 0 ° = 13.88 90 ° A I LB =347 -30 ° V ÷ 25 0 ° = 13.88 -30 ° A I LC =347 -150 ° V ÷ 25 0 ° = 13.88 -150 ° A I N =I LA +I LB +I LC =0 0 ° A THREE PHASE UNBALANCED Y-CIRCUIT Given loads: Phase (A)=15 0 ° Phase (B)=62 -88 ° Phase (C)=50 78 V L =208 Volts Phase sequence: ABC

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Unformatted text preview: Using VAN as the reference, calculate all the voltages and currents. V A N =120 ∠ ° Volts V B N =120 ∠-120 ° Volts V C N =120 ∠-240 ° Volts V AB =208 ∠ 30 ° Volts V BC =208 ∠-90 ° Volts V CA =208 ∠-210 ° Volts 1 EE369 – Industrial Automation 3-phase Wye System basics I LA =120 ∠ ° V ÷ 15 ∠ ° Ω = 8.0 ∠ ° A I LB =120 ∠-120 ° V ÷ 62 ∠-88 ° Ω = 1.935 ∠-32.0 ° A I LC =120 ∠-240 ° V ÷ 50 ∠ 78 ° Ω = 2.4 ∠ 42 ° A I N =I LA +I LB +I LC =11.4393 ∠ 2.91 ° A 2...
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3-phase WYE example - Using VAN as the reference calculate...

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