Description
The 3-winding 3-phase linear transformer with internal tertiary is very similar to its version without internal tertiary. Its advantage is to further spare nodes to optimize computation time by fixing the tertiary winding type to delta.
Table of Contents
Mask and Parameters
General Parameters
| Description | Use this field to add all kinds of information about the component |
| Base primary/secondary/tertiary winding voltage (rmsLL) | Base value for PU conversion (kV). Voltage expressed in kV rms LL This base voltage and nominal voltage will change, if the corresponding winding connection switches between delta and Y. |
| Base power (total) | Base value for PU conversion (MVA) |
| Base frequency | Base value for PU conversion (Hz) |
Magnetization Impedance Parameters
- Rm: Equivalent resistance of iron losses of the magnetic circuit (Ω)
- Lm: Magnetization inductance (H)
Winding Parameters
| Primary/secondary connection | Winding type
|
| Tertiary connection | forced to Delta |
| Voltage (rmsLL) | Rated voltage of the winding (kV) Y connections: Voltage expressed in kV rms LL Delta connections: Voltage expressed in kV rms LL |
| R1, R2, R3 | Leakage resistance of the winding (Ω) |
| L1, L2, L3 | Leakage inductance of the winding (H) |
Neutral Impedance Parameters
| R1, R2 | Neutral resistance of the winding; only applies to Y ground (Ω) |
| L1, L2 | Neutral inductance of the winding; only applies to Y ground (H) |
| C1, C2 | Neutral capacitance of the winding; only applies to Y ground (F) |
Ports, Inputs, Outputs and Signals Available for Monitoring
Ports
| Net_1 | Primary winding connection (supports only 3-phase connections) |
| Net_2 | Secondary winding connection (supports only 3-phase connections) |
| Net_N1 | Neutral connection for primary winding (supports only 1-phase connections) |
| Net_N2 | Neutral connection for secondary winding (supports only 1-phase connections) |
Inputs
- None
Outputs
- None
Sensors
| ILMAG(a,b,c) | Magnetization current for each phase (A) |
| IPRIM(a,b,c) | Primary current for each phase (A) |
| ISEC2(a,b,c) | Secondary current for each phase (A) |
| ISEC3(a,b,c) | Tertiary current for each phase (A) |