Foretec Electric India Private Limited

PQ Synthesiser — Harmonic Synthesiser & Network Impact

Inject harmonic loads on an LV bus, watch IEEE 519‑2022 PCC compliance in real time, design and verify detuned capacitor banks by adjusting tuning frequency and individual harmonic orders, track parallel resonance and read out transformer harmonic derating per IEEE C57.110 — for plant‑design verification and harmonic‑mitigation design.

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LIVE SIMULATION Load: 6-pulse VFD front-end THDi — · THDv —

Harmonic spectrum (% of fundamental) · h = 2 … 25

LV incomer current waveform

PCC assessment (IEEE 519-2022): … Transformer loading (C57.110): …

What you will explore

Six live study areas — drag a slider, see every downstream effect immediately.

Harmonic injection

Individual harmonic sliders for h = 2…50. Live spectrum bars, THDv and THDi update as you drag. Auto-harmonic presets for common non-linear loads.

Transformer & system model

Enter your transformer nameplate, no-load loss, load loss and short-circuit MVA. See LV bus voltage, harmonic impedance Z(h) and available fault current.

PCC assessment — IEEE 519‑2022

Live compliance vs. TDD limits with the correct I_sc/I_L bracket at the PCC. Every finding cites the standard and clause.

Parallel resonance study

Switch capacitor banks on / off — plain PFC or detuned (7 %, 14 %, 5.67 %). See the Z(h) peak move, resonant harmonic order and capacitor over‑voltage risk.

Transformer harmonic derating

C57.110 capability curve, K-factor, harmonic loss factor F_HL, eddy-current loss uplift and estimated hot-spot temperature.

Loss & energy uplift register

Extra kW lost as heat, projected annual kWh and cost of the harmonic burden. Compare "as-is" against a proposed detuned or AHF solution.

Standards used in the Synthesiser

Only the standards the tool actually references — harmonic compliance and transformer capability.

Harmonic compliance

IEEE 519‑2022 — System-level (PCC) voltage & current distortion limits; TDD by I_sc/I_L bracket
IEC 61000-4-7 — Harmonic and inter-harmonic measurement method (grouping, subgrouping)
IEC 61000-4-30 — Class A power-quality measurement method & aggregation
IEC 61000-3-2 / 3-12 — Equipment emission limits (≤ 16 A / > 16 A per phase)
IS 12816 — Indian harmonic limits (older reference, cross-checked)

Transformer & reactive plant

IEEE C57.110 — Transformer capability under non-sinusoidal load; F_HL, K-factor, derating
IEC 60076-6 — Reactor linearity specification for detuned harmonic filter banks
IEC 61000-2-2 / 2-4 — Compatibility levels on LV public networks & industrial plants