Three Phase

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Jane Courtney

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Jane Courtney

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Ready to use

4 years, 11 months ago

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Jane Courtney 4 years, 11 months ago

Gave some feedback: Ready to use

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Jane Courtney 4 years, 11 months ago

Published this.

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Jane Courtney 4 years, 11 months ago

Created this as a copy of Series RL Circuit Resistive Voltage.

Name	Status	Author	Last Modified
Parallel RL Circuit Current	Ready to use	Jane Courtney	27/02/2023 09:57
Series RL Circuit Inductance	Ready to use	Jane Courtney	27/02/2023 09:56
Series RL Circuit Resistive Voltage	Ready to use	Jane Courtney	06/03/2023 16:24
Parallel RL Circuit Inductive Current	Ready to use	Jane Courtney	27/02/2023 09:56
Parallel RL Circuit Resistance	Ready to use	Jane Courtney	27/02/2023 09:55
Three Phase	Ready to use	Jane Courtney	14/01/2021 16:03
OldTransformers	Ready to use	Jane Courtney	05/03/2024 17:05
Gavin’s copy of Series RL Circuit Current	Ready to use	Jane Courtney	26/09/2024 16:59

There are 7 other versions that do you not have access to.

Question statement

A balanced, three phase, {VLINE} V system is supplying a load connected in {type}.

{image('resources/question-resources/'+Circuit)}

The loads are:

$Z_1 = \var{R1}+i\ \var{X1}\ \Omega$

$Z_2 = \var{R2}+i\ \var{X2}\ \Omega$

$Z_3 = \var{R3}+i\ \var{X3}\ \Omega$

Give any introductory information the student needs.

			Name	Type	Generated Value

VLINE	integer	1000
VPH	number	577.3502691896
Voltages	list	[ 577.3502691896, 1000 ]
VA	number	577.3502691896
VB	number	-288.6751345948 - 500i
VC	number	-288.6751345948 + 500i
V1	number	577.3502691896
V2	number	-288.6751345948 - 500i
V3	number	-288.6751345948 + 500i

			Name	Type	Generated Value

R1	integer	77
R2	integer	69
R3	integer	35
X1	integer	57
X2	integer	22
X3	integer	38

			Name	Type	Generated Value

I1	number	4.8437536204 - 3.5856357969i
I2	number	-5.8948683102 - 5.3668535823i
I3	number	3.3332222889 + 10.6667872292i
IA	number	4.8437536204 - 3.5856357969i
IB	number	-5.8948683102 - 5.3668535823i
IC	number	3.3332222889 + 10.6667872292i
Neutral	number	2.854265617
I1angle	number	-36.5110561195
I2angle	number	-137.6843920266
I3angle	number	72.6467031339
IAangle	number	-36.5110561195
IBangle	number	-137.6843920266
ICangle	number	72.6467031339

			Name	Type	Generated Value

PA	number	2796.5424565991
PB	number	4385.1286939943
PC	number	4371.175221681
P1	number	2796.5424565991
P2	number	4385.1286939943
P3	number	4371.175221681
PLine	number	11552.8463722744
PLoad	number	11552.8463722744

			Name	Type	Generated Value

StarorDelta	integer	0
type	string	star with a neutral
types	list	List of 2 items
Circuit	string	StarCircuit_zxgxKjR.png
Diagrams	list	List of 2 items

			Name	Type	Generated Value

Automatically regenerate variables?

Name

Data type

Value

A random number between and (inclusive) with step size

Description

Rated Voltage

Describe what this variable represents, and list any assumptions made about its value.

Can an exam override the value of this variable?

Generated value: `integer`

1000

→ Used by:

VPH
Voltages

Statement

Parts

Load Currents Gap-fill
1. Step Information only
Supply Currents Gap-fill
1. Step Information only
Supply Power Gap-fill
1. Gap Line Power A Number entry
  Add
2. Gap Line Power B Number entry
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3. Gap Line Power C Number entry
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1. Step Information only
Load Power Gap-fill
1. Gap Load Power 1 Number entry
  Add
2. Gap Load Power 2 Number entry
  Add
3. Gap Load Power 3 Number entry
  Add
1. Step Information only

Gap-fill

Ask the student a question, and give any hints about how they should answer this part.

What is the load voltage? Load Voltage V

Using $V_A$ as the reference voltage, calculate the currents in each load:

$I_1 =$ Load Current 1 magnitude $\angle$ Load Current 1 angle $^o$ A

$I_2 =$ Load Current 2 magnitude $\angle$ Load Current 2 angle $^o$ A

$I_3 =$ Load Current 3 magnitude $\angle$ Load Current 3 angle $^o$ A

Advice

Give a worked solution to the whole question.

URL
resources/question-resources/

Text alternative
URL
resources/question-resources/

Text alternative

Use this tab to check that this question works as expected.

There was an error which means the tests can't run:

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This question is used in the following exams:

DT009 Exam by Jane Courtney in Jane's workspace.
Electrical Energy Systems Final Exam by Jane Courtney in Jane's workspace.
AC Exam by Jane Courtney in Jane's workspace.
Problem Solving Assessment II by Jane Courtney in Jane's workspace.

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Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

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Comment

Checkpoint description

Jane Courtney 4 years, 11 months ago

Jane Courtney 4 years, 11 months ago

Jane Courtney 4 years, 11 months ago

Error in variable testing condition

Error

Warning

Generated value: `integer`

Parts

Gap-fill

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Error

Three Phase

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Jane Courtney 4 years, 11 months ago

Jane Courtney 4 years, 11 months ago

Jane Courtney 4 years, 11 months ago

Error in variable testing condition

Error

Warning

Generated value: integer

Parts

Gap-fill

Generated value: `integer`