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The following IT secondary readings were taken at a new digital feeder protection panel in a utility application. The CT ratio is 150:5 and the power system has a nominal voltage of 18000V with a PT ratio = 10200/120V. Both IT's are wye connected. Phase rotation = RWB. = 2.90 AZ-10° Jw=2.95 AZ-129° b= 2.85 AZ +113° V=119.0 V 40° Kwn- 119.2 V Z-118° Vbn=120.0 V4 +121° 1. Plot the secondary voltage and current phasors on a single phasor diagram in AutoCAD format. Ensure the diagram is neat, lines are straight, magnitudes and angles to scale, and all required diagram labelling is present. 2. Calculate the primary Phase current, Phase to neutral and Phase to Phase voltages, Total kW, KVAR and KVA. Include magnitudes and phase angles. Show your work. JK= Jx= Kro= Kwn= Kow= Kwb= Jb= VbQ= Vbr= Total kW= Total KVAR= Total KVA= 3. Plot the Question 2 data to scale on a PQ diagram for the Red phase. Correctly label the primary W, VAR, VA and phase angle.

The following IT secondary readings were taken at a new digital feeder protection panel in a utility application. The CT ratio is 150:5 and the power system has a nominal voltage of 18000V with a PT ratio = 10200/120V. Both IT's are wye connected. Phase rotation = RWB. = 2.90 AZ-10° Jw=2.95 AZ-129° b= 2.85 AZ +113° V=119.0 V 40° Kwn- 119.2 V Z-118° Vbn=120.0 V4 +121° 1. Plot the secondary voltage and current phasors on a single phasor diagram in AutoCAD format. Ensure the diagram is neat, lines are straight, magnitudes and angles to scale, and all required diagram labelling is present. 2. Calculate the primary Phase current, Phase to neutral and Phase to Phase voltages, Total kW, KVAR and KVA. Include magnitudes and phase angles. Show your work. JK= Jx= Kro= Kwn= Kow= Kwb= Jb= VbQ= Vbr= Total kW= Total KVAR= Total KVA= 3. Plot the Question 2 data to scale on a PQ diagram for the Red phase. Correctly label the primary W, VAR, VA and phase angle.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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The following IT secondary readings were taken at a new digital feeder protection panel in a utility application. The CT ratio is 150:5 and the power system has a nominal voltage of 18000V with a PT ratio = 10200/120V. Both IT's are wye connected. Phase rotation = RWB. = 2.90 AZ-10° Jw=2.95 AZ-129° b= 2.85 AZ +113° V=119.0 V 40° Kwn- 119.2 V Z-118° Vbn=120.0 V4 +121° 1. Plot the secondary voltage and current phasors on a single phasor diagram in AutoCAD format. Ensure the diagram is neat, lines are straight, magnitudes and angles to scale, and all required diagram labelling is present. 2. Calculate the primary Phase current, Phase to neutral and Phase to Phase voltages, Total kW, KVAR and KVA. Include magnitudes and phase angles. Show your work. JK= Jx= Kro= Kwn= Kow= Kwb= Jb= VbQ= Vbr= Total kW= Total KVAR= Total KVA= 3. Plot the Question 2 data to scale on a PQ diagram for the Red phase. Correctly label the primary W, VAR, VA and phase angle.
Transcribed Image Text:The following IT secondary readings were taken at a new digital feeder protection panel in a utility application. The CT ratio is 150:5 and the power system has a nominal voltage of 18000V with a PT ratio = 10200/120V. Both IT's are wye connected. Phase rotation = RWB. = 2.90 AZ-10° Jw=2.95 AZ-129° b= 2.85 AZ +113° V=119.0 V 40° Kwn- 119.2 V Z-118° Vbn=120.0 V4 +121° 1. Plot the secondary voltage and current phasors on a single phasor diagram in AutoCAD format. Ensure the diagram is neat, lines are straight, magnitudes and angles to scale, and all required diagram labelling is present. 2. Calculate the primary Phase current, Phase to neutral and Phase to Phase voltages, Total kW, KVAR and KVA. Include magnitudes and phase angles. Show your work. JK= Jx= Kro= Kwn= Kow= Kwb= Jb= VbQ= Vbr= Total kW= Total KVAR= Total KVA= 3. Plot the Question 2 data to scale on a PQ diagram for the Red phase. Correctly label the primary W, VAR, VA and phase angle.
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