What is the Fault Analysis multi-solver?

Fault Analysis is a guided workflow that chains 2 individual PolySim solvers into one end-to-end analysis, piping each result into the next step.

Yes. Every step runs entirely in your browser using real numerics — no install, no account, no cloud cost. Custom or private solver packs are available as a paid service.

Electronics & Power Pack · Multi-Solver

Fault Analysis

Short-circuit & protection. This multi-solver chains 2 solvers into a single guided workflow — run each step in order and carry the result forward.

Workflow steps

three-phase
→rlc

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Three Phase

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Three-Phase PowerLive

the grid's backbone

Controls

Speed1×

Presets

Line voltage (V)

Line current (A)

Power factor

Three-phase power delivers energy on three conductors carrying sinusoids 120° apart, so total power is constant and motors self-start. Line and phase voltages differ by √3, and real power is P = √3·V_line·I·cosφ. The power factor cosφ measures how much current actually does useful work.

▶ Run in Python

Data Inspector

Phase voltage231 V

Real power P12.5 kW

Apparent S13.9 kVA

Reactive Q6.0 kVAR

Governing equation

P = 3 V_{L} I cos φ = 3 \times 400 \times 20 \times 0.9 = 12.5 kW

Reading this result: Real power P = √3·V_line·I·cosφ = 12.5 kW, trailing the 13.9 kVA apparent power by the angle φ = 26°.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

↓

RLC Circuit

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RLC Circuit StudioLive

series RLC step response

Controls

Apply a step voltage to a series RLC circuit and watch charge and current respond — under-, over-, or critically damped.

Presets

Resistance R

Inductance L

Capacitance C

▶ Run in Python

Data Inspector

Damping ζ0.750

Regimeunderdamped

ω₀1.000

Governing equation

1 \overset{q}{¨} + 1.5 \overset{q}{˙} + \frac{q}{1} = V_{0}, ω_{0} = \frac{1}{L C} = 1.000, ζ = \frac{R}{2} \frac{C}{L} = 0.750

Reading this result: ζ = 0.750 < 1: underdamped. With ω₀ = 1.000 rad/s the charge overshoots and rings, oscillating while it decays toward its steady value. Lower ζ means more ringing.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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Frequently asked questions

What is the Fault Analysis multi-solver?: Fault Analysis is a guided workflow that chains 2 individual PolySim solvers into one end-to-end analysis, piping each result into the next step.
Is it free to use?: Yes. Every step runs entirely in your browser using real numerics — no install, no account, no cloud cost. Custom or private solver packs are available as a paid service.