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3ΦEE Download Center
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2W Xfmr Positive and Zero Sequence Impedance Estimate Equations
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2W AutoXfmr Positive and Zero Sequence Impedance Estimate Equations
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3W AutoXfmr Positive and Zero Sequence Impedance Estimate Equations
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Xfmr Positive and Zero Sequence Impedance Calculations from Test Report
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Aggregating Generators Derivation
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Aspen Circuit Breaker Modeling
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Asymmetrical Fault Current Derivation
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Auto Transformer Explained
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Branch Flow Derivation
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Breaker Duty Equations
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Bus Compensation Derivation
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Electric Field Derivation 1Φ
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Electric Fields Single Pole Derivation
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Electric Fields HFrame Derivation
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Magnetic Fields Single Pole Derivation
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Magnetic Fields HFrame Derivation
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Complex Power Equations
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Complex Conjugate Identities
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3W Xfmr Δ-T-Δ Equations
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Δ-Y Impedance Transform
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Ferraniti Effect Explained
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Ideal Xfmr Explained
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IEEE 57.12.90 Xfmr Testing Explained
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Overhead Line Ampacity Equations
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Line Dropping Derivation
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Long TLine π Model
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Maximum Line Flow Derivation
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Motor Starting Modeling Equations
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Overhead Conductors Explained
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Per-Phase Example
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Per-Unit Base Change Equations
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Per-Unit Explained
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Phase Shifting XFmr Explained
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Phasor Algebra Explained
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P
ST
- P
LT
Concepts
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Phase Shifting Xfmr Power Flow
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Q/V .vs. Power Factor Chart
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Series Capacitor Voltage Rise Equations
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Surge Impedance and Surge Impedance Loading Equations
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Symmetrical Components Explained
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TLine Constants Equations
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Two Bus Power Flow Equations
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XFmr Flow with Tap Changing
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XFmr Impedance Voltage Derivation
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XFmr Loss Resistance Derivation
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XFmr Reflected Impedance
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Trigonometric Identities
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Underground Cable Equations
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Useful 3Φ Power Equations
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V
LL
and V
Φ
Explained
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Y-Δ Xfmr Phasing Explained
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Y-Δ Xfmr in Zero Sequence
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Y-Y-Δ Xfmr in Zero Sequence
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Y-Y Xfmr in Zero Sequence
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Impedance to Admittance Conversion Equations
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more to come
XLS
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Subsystem Logic
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Estimate Wind Farm Collector System Impedance
PY
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3LG Fault (PSSE Automation)
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Batch .RAW to .SAV (PSSE Automation)
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Batch Run .IDV or .PY (PSSE Automation)
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Compare Load, Generation, Topology across Cases (PSSE Automation)
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Create SUB, MON, CON and DFX Files (PSSE Automation)
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Electric Fields - Single Pole
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Electric Fields - H Frame
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Magnetic Fields - Single Pole
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Magnetic Fields - H Frame
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Load Comparison across Cases (PSSE Automation)
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Short Circuit Ratio at Generator Bus (PSSE Automation)
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Symmetrical Components Visualization with VPython
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Switched Shunts to Max Capacitive or Inductive (PSSE Automation)