Create A Three-Phase Circuit (2:52 min)

00:00

[MUSIC PLAYING]

00:08

For our last lesson in creating circuits,

00:11

we're going to talk about how to create a multi-phase circuit.

00:14

I'm going to come back up and do an insert letter

00:17

and this time I'm going to switch to a three-phase letter.

00:20

I want to have the rung numbers and everything else

00:22

that we would need on here.

00:24

So I'm going to place this.

00:29

And then I'm going to go back to that multi-bus tool

00:32

and I'm going to connect it utilizing the other Bus

00:35

setting.

00:36

I'm going to make the spacing 1-inch

00:41

and I do want three wires because I'm

00:43

going to make this a three-phase circuit.

00:47

Now, I'm going to start connecting in at 742.

00:50

You'll see it automatically connects

00:52

to the other three-phase lines as I spread it across.

00:55

And then I'm going to place to click that.

00:58

Now, to be able to do this, to just make

01:00

a very, very simple motor circuit,

01:02

I'm going to go into my Icon menu again.

01:05

I'm going to come up to my motor control.

01:08

I'm going to go into fuses and circuit breakers

01:10

and grab a three-pole fuse.

01:15

I'm going to build it down.

01:18

I'm not going to add catalog information for demonstration

01:21

purposes, but definitely add catalog information.

01:24

Then I am going to insert again a three-phase starter

01:33

with overload.

01:35

Again, building down.

01:36

This is the point of the three-phase,

01:37

just so you can see it.

01:39

This is obviously a motor-controlled child.

01:42

We do not need to assign a parent right now.

01:44

We can just click OK so that you can find that relay when

01:47

you're ready.

01:49

And then when we're ready, and obviously this

01:50

is a very simple one, we can add the motor at the very end.

01:53

So I'm going to go to the Icon menu.

01:56

I am going to click into Motor Control.

01:58

And I'm going to grab a three-phase motor.

02:01

Now, the point of showing this to you

02:02

is how different these symbols are

02:05

compared to the other custom components

02:07

that we have inserted thus far.

02:09

So a motor, when we go to add it,

02:10

we add to the middle rung here.

02:13

And, again, you can fill out all the information on it.

02:16

But when we click OK, it's going to auto-trim and then make

02:18

those connections at the radial connection

02:21

points on that motor.

02:22

And that's the importance of just sharing with you

02:24

how three-phase components connect and link

02:28

to one another.

02:29

If I want to scoot a three-phase component,

02:32

it will grab the first part of it,

02:33

but then ask to scoot linked components.

02:36

So everything is linked together and they know

02:38

that there are three-phase.

02:39

And that's the importance of looking at those symbols

02:42

slightly differently than how we inserted

02:44

our single-phase components.

02:46

Please take a minute to do the three-phase motor circuit

02:49

exercise.

Video transcript

00:00

[MUSIC PLAYING]

00:08

For our last lesson in creating circuits,

00:11

we're going to talk about how to create a multi-phase circuit.

00:14

I'm going to come back up and do an insert letter

00:17

and this time I'm going to switch to a three-phase letter.

00:20

I want to have the rung numbers and everything else

00:22

that we would need on here.

00:24

So I'm going to place this.

00:29

And then I'm going to go back to that multi-bus tool

00:32

and I'm going to connect it utilizing the other Bus

00:35

setting.

00:36

I'm going to make the spacing 1-inch

00:41

and I do want three wires because I'm

00:43

going to make this a three-phase circuit.

00:47

Now, I'm going to start connecting in at 742.

00:50

You'll see it automatically connects

00:52

to the other three-phase lines as I spread it across.

00:55

And then I'm going to place to click that.

00:58

Now, to be able to do this, to just make

01:00

a very, very simple motor circuit,

01:02

I'm going to go into my Icon menu again.

01:05

I'm going to come up to my motor control.

01:08

I'm going to go into fuses and circuit breakers

01:10

and grab a three-pole fuse.

01:15

I'm going to build it down.

01:18

I'm not going to add catalog information for demonstration

01:21

purposes, but definitely add catalog information.

01:24

Then I am going to insert again a three-phase starter

01:33

with overload.

01:35

Again, building down.

01:36

This is the point of the three-phase,

01:37

just so you can see it.

01:39

This is obviously a motor-controlled child.

01:42

We do not need to assign a parent right now.

01:44

We can just click OK so that you can find that relay when

01:47

you're ready.

01:49

And then when we're ready, and obviously this

01:50

is a very simple one, we can add the motor at the very end.

01:53

So I'm going to go to the Icon menu.

01:56

I am going to click into Motor Control.

01:58

And I'm going to grab a three-phase motor.

02:01

Now, the point of showing this to you

02:02

is how different these symbols are

02:05

compared to the other custom components

02:07

that we have inserted thus far.

02:09

So a motor, when we go to add it,

02:10

we add to the middle rung here.

02:13

And, again, you can fill out all the information on it.

02:16

But when we click OK, it's going to auto-trim and then make

02:18

those connections at the radial connection

02:21

points on that motor.

02:22

And that's the importance of just sharing with you

02:24

how three-phase components connect and link

02:28

to one another.

02:29

If I want to scoot a three-phase component,

02:32

it will grab the first part of it,

02:33

but then ask to scoot linked components.

02:36

So everything is linked together and they know

02:38

that there are three-phase.

02:39

And that's the importance of looking at those symbols

02:42

slightly differently than how we inserted

02:44

our single-phase components.

02:46

Please take a minute to do the three-phase motor circuit

02:49

exercise.

Project: Create a Three-Phase Circuit

 
 

Completion Time:  20 Minutes

 

Prerequisites

        Completion of Multiple Phase Circuits Lesson

 

Objective:  In this exercise, you create a complete three-phase circuit. You do the following:

        > Insert a three-phase ladder.

        > Insert three-phase wiring and components.

 

Process:  Completion of the Multiple Phase Circuits Lesson.

 

Instructions

 

1:  If the Project Manager is not displayed, on the Project tab, Project Tools panel, click Manager.

 

 

2:  If Schematic_Components_NFPA is the active project, skip to step 5. If it is open but not active in the Project Manager, do the following:

        > Right-click Schematic_Components_NFPA.

        > Click Activate.

        > Skip to step 6.

 

 

3:  In the Project Manager, click Open Project.

 

4:  Browse to where you installed the exercise files. Select Schematic_Components_NFPA.wdp. Click Open.

 

5:  In the Projects list, click the expansion node next to Schematic_Components_NFPA to expand the drawing list.

 

6:  Click New Drawing.

 

7:  In the Create New Drawing dialog box, do the following:

        > For Name, enter Schematic_Components_NFPA_11

        > For Template, click Browse and select ACAD_ELECTRICAL.dwt. Click Open

        > Click OK.

 

 

8:  On the Schematic tab, Insert Wires/Wire Numbers panel, Insert Ladder flyout, and click Insert Ladder.

 

 

9:  In the Insert Ladder dialog box, under Phase, click 3 Phase. For Spacing, enter "0.50"

 

 

10:  Under Spacing, enter "0.50"


 

 

11:  Under Length, enter "20"

Note: When you select a different area of the dialog box, the number of rungs is calculated automatically, and the length is adjusted to match.

 

12:  Under 1st Reference, enter "100"then do the following:

        > For Index, enter "1"

        > Clear the Without Reference Numbers check box.

        > Click OK.

 

13:  Select an insertion point at approximately 2.00, 21.00.

 

 

14:  Insert Three-Phase Wiring and Components:
Zoom in to rungs 101-103.

 

 

15:  On the Schematic tab, Insert Wires/Wire Numbers panel, click Multiple Bus.

 

 

16:  In the Multiple Wire Bus dialog box, do the following:

        > For Horizontal Spacing, enter "0.50"

        > Click Another Bus (Multiple Wires).

        > For Number of Wires, click 3.

        > Click OK.

 

17:  Select a start point on the first (left) vertical bus at reference 101. Move to the right and select the endpoint at approximately 7.50, 20.00. Press ENTER to end the Multiple Wire Bus command.

 

 

18:  On the Schematic tab, Insert Components panel, click Icon Menu.

 

 

19:  In the Insert Component dialog box, click Fuses/Circuit Breakers.

 

 

20:  In the Symbol preview window, click 3 Pole Fuse with Tags.
 

 

 

21:  Select an insertion point for the fuse on the upper rung, just to the right of the three-phase bus.

 

22:  In the Build Up or Down? dialog box, click Down.

 

 

23:  In the Insert/Edit Component dialog box, click OK.

 


This completes the insertion of the fuses.

 

 

24:  On the Schematic tab, Insert Components panel, click Icon Menu.

 

25:  In the Insert Component dialog box, click Motor Control.

 

 

26:  In the Symbol preview window, click 3 Phase Starter Contacts with Overload.

 

 

27:  Select an insertion point on the upper rung, just to the right of the fuses.

 

28:  In the Build Up or Down? dialog box, click Down.

 

 

29:  In the Insert/Edit Child Component dialog box, click OK.

 


This completes the insertion of the starter contacts.

 

30:  On the Schematic tab, Insert Components panel, click Icon Menu.

 

31:  In the Insert Component dialog box, click Motor Control.

 

 

32:  In the Symbol preview window, select 3 Phase Motor.

 

 

33:  Select the insertion point overlapping the end of the middle three-phase wire.

 

 

34:  In the Insert/Edit Component dialog box, click OK.

 

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