Work with phase selectable switchboard circuits

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The 2021 release of rev.

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It saw the introduction of a feature that allows

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the user to choose which phase of a switchboard,

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single phase loads are connected to.

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Prior to this all single phase loads

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connected to a switchboard would automatically be

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connected to phase A with no option for moving them to a different phase.

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In this project, we will review the default panel schedule for a switchboard,

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then look at the options for changing the appearance of the panel schedule.

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By editing the template,

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we will create a heating circuit,

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then use the switch phases feature in rev it to balance the

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loads of multiple single phase circuits across the phases of the switchboard.

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The heaters in this floor plan are

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connected through multiple circuits to switchboard SB one

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as each circuit is created,

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it is automatically assigned a circuit number and phase on the switchboard.

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So let's go ahead and open and review the panel

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schedule for switchboard SB one from the project browser.

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Although it's not clear to see from the panel schedule,

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all the heating circuits in this project are

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connected to phase a of the switchboard.

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The total loads for all the circuits can be seen

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here at the bottom of the only column on display

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to add some clarity to this arrangement.

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It would be necessary to make some simple

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edits to the current panel schedule template.

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Alternatively, a duplicate can be created and edited to suit

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from the manage tab of the ribbon, select the panel schedule templates,

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dropdown menu and choose edit a template,

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change the template type to switchboard,

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then choose the default switchboard and select to open

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select set template options from the ribbon

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and then select circuit table from the list of options on the left,

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change the format for displaying loads to separate phase loads per circuit.

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The preview window now shows all three phases

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choose cancel, then cancel, template from the ribbon.

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Rather than editing the existing template,

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we will change the template for one that has

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already been edited to include the changes we need

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from the ribbon, select change template and select ps switchboard.

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Select a yes at the warning message.

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We can now see that all of the loads connected so far have been to phase a

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change the view to one power,

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then select the four heaters in the room to the top left of the floor plan.

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Create a new circuit that is connected to SB one,

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change the view to the panel schedule for SB one.

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And here we can see the new circuit has also been connected to phase a

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change, the default frame size for the new circuit to 100 amps

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from the panel schedule, select circuit four.

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Then from the ribbon pick the switch phases, command

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and the circuit moves to phase B

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review the total at the bottom as the circuit is moved across,

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repeat the process for circuits five and six

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and again, review the totals at the bottom.

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Go ahead and move circuits 789 and 10 to phase C

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by selecting the switch phases, command twice for each circuit

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once complete review the totals for each column

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where the loads are now more evenly balanced across all three phases.

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When using rev it for electrical design,

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the information in each circuit created and modified automatically updates

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providing invaluable feedback to assist in making design decisions.

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Edit an existing panel schedule template

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or create a modifier duplicate to gain greater

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visibility of phase allocation on a switchboard.

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Then you switch phases to balance the loads on your switchboard and give you

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greater control and a more accurate account

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of the electrical distribution in your project.