FA-12249 / Power metering accounting / Member archive

Per-phase direction registers are collapsed before settlement · case 04

Per-phase direction registers are collapsed before settlement.

Member previewVariant 4 · 3 implementations · 6 checks per implementation

Case contract

For signed simultaneous phase energies, positive means import. Return [sum of positive phases, absolute sum of negative phases]. The modeled meter records import and export separately without cross-phase netting.

Why this case matters

Meter settlement depends on explicit register and tariff policies; this controlled model makes that policy observable.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
simultaneous directions	`[4, 0]`	`[12, 8]`	Failed

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