Design Master Electrical is a complete electrical design and drafting program that can calculate the fault current and voltage drop in your project.
The same panels and transformers you create for one-line diagrams and panel load calculations are used to calculate fault current and voltage drop.
The calculated fault current values are displayed in a schedule on your drawing. The format of the schedule can be customized to match the information you want to show. The schedule includes all the information necessary to satisfy the most thorough plan reviewers.
The fault values include motor contributions. The motor contributions are based upon the motors that you create in your project.
Voltage drop is calculated on both feeders and branch circuits.
The feeder voltage drop is based upon the panels and transformers in your project, the sizes of the feeders, and their distances from each other. You can manually specify the distance between panels or have it calculated automatically if the panels are placed on the drawing.
The branch circuit voltage drop is based upon the devices that are connected to each circuit and their location on the drawing.
Any circuit or feeder that exceeds the maximum voltage drop allowed by the NEC (3% for the circuit or the feeder, 5% for the sum of the two) will be highlighted in the schedule, making you aware of the problem. Then you can modify your design to reduce the voltage drop.
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