10.3   Voltage Compliance

Parameter	NERSA Limit	Measured Range	Compliance Status
Voltage PQ Events (threshold log)	≤ 40 events per quarter	154761 events	Non-Compliant
Power Failures / Outages	≤ 20 events per quarter	83027 events	Non-Compliant
Voltage Unbalance (max site)	≤ 2%	6.83%	Non-Compliant
Flicker Pst (short-term, max site)	≤ 1.0	0.00	Compliant
Flicker Plt (long-term, max site)	≤ 0.8	0.00	Compliant

10.4   Harmonic Distortion

Parameter	NERSA Limit	Measured Max (all meters)	Phases Exceeding Limit	Compliance Status
THD Voltage (VTHD)	≤ 5%	Max 1.5%	0	Compliant
3rd Harmonic (V)	Review	Max 1.4%	0	Compliant
5th Harmonic (V)	≤ 3%	Max 0.9%	0	Compliant
7th Harmonic (V)	≤ 3%	Max 0.7%	0	Compliant

10.5   Feeder Loading & Power Factor

Meter / Feeder	Voltage / Current / kW Snapshot	VTHD & PF	Compliance Status
Stanger-Feeder 1 (33KV) / Feeder 1 Stanger Substation	V: 19410.0V / 19668.0V / 19740.0V I: 53.50A / 55.50A / 55.00A kW: 3177.000 kW  Unbal: 1.68% as at 2026-07-09 10:16	VTHD: 0.5% / 0.7% / 0.4% PF: 0.988	Compliant
Stanger-Feeder 2 (33kV) / Feeder 2 Stanger Substation	V: 19971.0V / 19911.0V / 19680.0V I: 124.40A / 127.60A / 125.20A kW: 7170.000 kW  Unbal: 1.47% as at 2026-07-08 13:52	VTHD: 0.6% / 0.7% / 0.6% PF: 0.946	Compliant
Stanger-Gelnhills Feed (33KV) / Feeder 3 Stanger Substation	V: 19410.0V / 19650.0V / 19713.0V I: 210.80A / 218.80A / 211.60A kW: 11954.400 kW  Unbal: 1.55% as at 2026-07-09 10:11	VTHD: 0.5% / 0.7% / 0.4% PF: 0.953	Compliant
Stanger-Groutville Phase1 (33KV) / Feeder 4 Stanger Substation	V: 19548.0V / 19131.0V / 20478.0V I: 185.60A / 191.20A / 189.60A kW: 10588.800 kW  Unbal: 6.83% as at 2026-07-09 10:06	VTHD: 0.9% / 1.5% / 1.1% PF: 0.941	Compliant
Stanger-Sappi Feed 1 (33KV) / Feeder 5 Stanger Substation	V: 19722.0V / 19950.0V / 19944.0V I: 85.00A / 91.00A / 87.00A kW: 5052.000 kW  Unbal: 1.15% as at 2026-07-09 02:25	VTHD: 0.5% / 0.7% / 0.5% PF: 0.957	Compliant
Stanger-Sappi Feed 2 (33KV) / Feeder 6 Stanger Substation	V: 19458.0V / 19686.0V / 19773.0V I: 77.50A / 86.50A / 81.00A kW: 4600.500 kW  Unbal: 1.60% as at 2026-07-09 10:10	VTHD: 0.6% / 0.7% / 0.5% PF: 0.954	Compliant
Shakaskraal-Feeder 1 (North) (33KV) / Feeder 7 Shakaskraal Substation	V: 33648.0V / 0.0V / 33843.0V I: 92.80A / 0.00A / 88.00A kW: 5088.000 kW  Unbal: — as at 2026-07-09 10:02	VTHD: 0.7% / 0.0% / 0.5% PF: 0.822	Low PF Warning
Shakaskraal-Feeder 2 (South) (33KV) / Feeder 8 Shakaskraal Substation	V: 33849.0V / 0.0V / 34011.0V I: 396.80A / 9.60A / 387.20A kW: 22128.000 kW  Unbal: — as at 2026-07-09 10:12	VTHD: 0.8% / 0.0% / 0.9% PF: 0.832	Low PF Warning
Ballito Sub Incomer (Feeder 1) (33KV) / Feeder 9 Driefontein Substation's	V: 32379.0V / 0.0V / 33156.0V I: 257.40A / 0.00A / 262.80A kW: 14671.800 kW  Unbal: — as at 2026-07-09 10:05	VTHD: 1.2% / 0.0% / 1.2% PF: 0.856	Compliant
Zimbali Sub Incomer (Feeder 2) (33KV) / Feeder 10 Driefontein Substation's	V: 34149.0V / 0.0V / 33570.0V I: 243.60A / 0.00A / 232.00A kW: 13538.400 kW  Unbal: — as at 2026-06-25 08:34	VTHD: 1.2% / 0.0% / 1.1% PF: 0.843	Low PF Warning
Site Combined Totals	Mean Voltage: 20781.60 V Total Current: 4227.0 A Total kW: 97968.900 kW	Mean PF: 0.909	Live

10.6   PQ Event Summary (2026-04-01 to 2026-06-30)

Event Type	Count	Severity	Notes
Voltage PQ Threshold Events	154761	High	DLMS event log codes 210-213
Power Failures / Outages	83027	High	Power fail log entries
Power Cycle Events (Up/Down)	103996	Investigate	Standard event codes 1 & 2
Harmonic Exceedances (V H5/H7)	0	Low	All within limit

10.7   Compliance Summary

Metric	Target	Actual	Status
Meters Compliant (VTHD)	≥ 95%	100.0%	Compliant
Voltage Unbalance	≤ 2%	6.83%	Non-Compliant
PQ Threshold Events	≤ 40 / quarter	154761	Non-Compliant
Outages	≤ 20 / quarter	83027	Non-Compliant
Harmonic Incidents (H5/H7)	≤ 10	0	Within Limit