Class Description
Describes a tap changer with a linear relation between the tap step and the phase angle difference across the transformer. This is a mathematical model that is an approximation of a real phase tap changer.
The phase angle is computed as stepPhaseShiftIncrement times the tap position.
The voltage magnitude of both sides is the same.
Attributes
| Name | Type | Description |
|---|---|---|
| stepPhaseShiftIncrement | AngleDegrees | Phase shift per step position. A positive value indicates a positive angle variation from the Terminal at the PowerTransformerEnd, where the TapChanger is located, into the transformer. |
| The actual phase shift increment might be more accurately computed from the symmetrical or asymmetrical models or a tap step table lookup if those are available. | ||
| xMax | Reactance | The reactance depends on the tap position according to a “u” shaped curve. The maximum reactance (xMax) appears at the low and high tap positions. Depending on the āuā curve the attribute can be either higher or lower than PowerTransformerEnd.x. |
| xMin | Reactance | The reactance depends on the tap position according to a “u” shaped curve. The minimum reactance (xMin) appears at the mid tap position. PowerTransformerEnd.x shall be consistent with PhaseTapChangerLinear.xMin and PhaseTapChangerNonLinear.xMin. In case of inconsistency, PowerTransformerEnd.x shall be used. |
Relationships
Inherits from
Descendant classes
- No descendant classes
Leaf/Root class
| IsLeaf | IsRoot |
|---|---|
| False | False |
Associations
None