Distribution equipment: Transformer

These values are displayed when the Device Type is set to Distribution equipment: Transformer.

Family Edit Dialog Box

family-edit-distribution-equipment-transformer-dialog-box

Family Settings

The settings for the family. The values set in this section are used unless they are overridden by settings in the bottom Type Settings section.

Device Type: The type of electrical device. Each type has different values that can be set. Displayed here are the settings for Distribution equipment: Transformer.

Upstream Description Prefix: A prefix added to the start of the circuit description in the upstream equipment. The default description is the name of the family instance.

Upstream Description Suffix: A suffix added to the end of the circuit description in the upstream equipment. The default description is the name of the family instance.

Neutral: Sets the size of the neutral wire in the feeder.

Same as phase: The neutral wire will be the same size as the phase wires.
Double phase: The neutral wire will be twice the size of the phase wires. This is accomplished by using two neutral wires.
None: No neutral wire will be included in the feeder.
Custom: The neutral wire is set to the value you specify. Enter a value that corresponds to a Wire Size value set in the Wire Sizes command in your project.

Ground: Sets the size of the ground wire in the feeder.

Size automatically: The ground wire is sized based upon the OCP Trip setting. If the distribution equipment is fed from a transformer, the Service Ground setting for the conductor ampacity is used. Otherwise, the Equipment Ground setting for the conductor ampacity is used.
NEC 250.122 Equipment: The ground wire is sized based upon the Equipment Ground setting for the conductor ampacity.
NEC 250.102 Service: The ground wire is sized based upon the Service Ground setting for the conductor ampacity.
None: No ground wire is included in the feeder.
Custom: The ground wire is set to the value you specify. Enter a value that corresponds to a Wire Size value set in the Wire Sizes command in your project.

IG Conductor: Whether the feeder includes an isolated ground.

Yes: An isolated ground will be included in the feeder.
No: An isolated ground will not be included in the feeder.

Size: The size of the transformer in kVA.

K-Factor Rating: The specific K-factor rating of the transformer for handling the harmonic content of the load.

Impedance %: The impedance of the transformer for fault calculations and voltage drop calculations.

X/R Ratio: The X/R ratio of the transformer for fault calculations.

Type Settings

The settings for specific types in the family. Values set here override the values set in the Family Settings section.

Override Family Values: Whether to override the settings in the Family Settings section for this family type.


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