Free Tool · EN 60909 / IEC 60909

Load Flow Analysis

Run a Gauss-Seidel power flow study on a radial or meshed network. Per-bus voltages, line flows, losses, and voltage violation flags (V < 0.95 pu or V > 1.05 pu) per EN 60909 and IEC 60909.

System Parameters

Base apparent power S_base (MVA)

Base voltage V_base (kV)

Bus Data

Bus ID	Type	P_gen (kW)	Q_gen (kVAr)	P_load (kW)	Q_load (kVAr)	V_specified (pu)

Line Data

From bus	To bus	R (pu)	X (pu)	B (pu)

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Add bus and line data, then click Run Power Flow

Convergence

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iter

Iterations

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Total Loss

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buses

Network

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lines

Network

Power Flow Results — Bus Data

Bus	Type	V (pu)	∠ (°)	P inj (kW)	Q inj (kVAr)	Status

Power Flow Results — Line Data

From	To	P flow (kW)	Q flow (kVAr)	P loss (kW)

Voltage Violations

Related tools

Standards: EN 60909, IEC 60909. Method: Gauss-Seidel (tolerance 1×10⁻⁶ pu, max 100 iterations).