Harmonic Distortion Limits: 100-1000
IEEE 519-2022 harmonic distortion limits at the Point of Common Coupling (PCC). Current distortion limits by ISC/IL ratio and individual harmonic group; voltage distortion limits by bus voltage level. Covers systems from <=1kV through >161kV.
| isc il ratio | voltage class kv | h 11 to 16 pct (%) | h 17 to 22 pct (%) | h 23 to 34 pct (%) | h 2 to 10 pct (%) | h 35 to 50 pct (%) | notes | tdd pct (%) | voltage individual pct (%) | voltage thd pct (%) |
|---|---|---|---|---|---|---|---|---|---|---|
| 100-1000 | EHV_GT161KV | 5.5 | 5 | 2 | 12 | 1 | V > 161kV; transmission | 15 | 1 | 1.5 |
| 100-1000 | HV_69_161KV | 5.5 | 5 | 2 | 12 | 1 | 69kV < V ≤ 161kV | 15 | 1.5 | 2.5 |
| 100-1000 | LV_1KV | 5.5 | 5 | 2 | 12 | 1 | Systems ≤1.0kV; very strong source | 15 | 5 | 8 |
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