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2-Winding 3-Phase Series Linear Transformer
- Sylvain Ménard
Description
Series transformers are very similar in design to other 3-phase transformers. However, because of their particular connection (series), they are mainly used for series devices such as DVR, active filters, UPFC, etc. The 2-winding series linear transformer is best used when the simulation of saturation can be avoided as it can save computation time.
Mask and Parameters
General Parameters
| Description | Use this field to add all kinds of information about the component |
| Base primary/secondary 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
| Secondary connection | Winding type Y ground: Grounded Y connection (can use the internal neutral impedance specified in the other tab) Y floating: Floating Y connection Y neutral: Y connection with impedance connected at the input pin N1 or N2 Delta lead: Delta connection with lead of 30° Delta ground: Grounded delta connection (Phase C is grounded) Delta lag: Delta connection with lag of 30° |
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 | Leakage resistance of the winding (Ω) |
| L1, L2 | Leakage inductance of the winding (H) |
Neutral Impedance Parameters
| R2 | Neutral resistance of the secondary winding; only applies to Y ground (Ω) |
| L2 | Neutral inductance of the secondary winding; only applies to Y ground (H) |
| C2 | Neutral capacitance of the secondary winding; only applies to Y ground (F) |
Ports, Inputs, Outputs and Signals Available for Monitoring
Ports
| Net_1+ | Positive primary winding connection (supports only 1-phase connections) |
| Net_1- | Negative primary winding connection (supports only 1-phase connections) |
| Net_2 | Secondary winding connection (supports only 3-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) |
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