10.3   Voltage Compliance

Parameter	NERSA Limit	Measured Range	Compliance Status
Voltage PQ Events (threshold log)	≤ 40 events per quarter	37357 events	Non-Compliant
Power Failures / Outages	≤ 20 events per quarter	20834 events	Non-Compliant
Voltage Unbalance (max site)	≤ 2%	7.28%	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 1.3%	0	Compliant
5th Harmonic (V)	≤ 3%	Max 0.8%	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: 19665.0V / 19902.0V / 19971.0V I: 52.50A / 54.50A / 52.50A kW: 3198.000 kW  Unbal: 1.54% as at 2026-06-26 11:27	VTHD: 0.5% / 0.8% / 0.5% PF: 0.988	Compliant
Stanger-Feeder 2 (33kV) / Feeder 2 Stanger Substation	V: 20007.0V / 19848.0V / 19677.0V I: 103.60A / 105.20A / 103.20A kW: 5913.600 kW  Unbal: 1.66% as at 2026-06-26 11:33	VTHD: 0.6% / 0.8% / 0.5% PF: 0.955	Compliant
Stanger-Gelnhills Feed (33KV) / Feeder 3 Stanger Substation	V: 19644.0V / 19884.0V / 19953.0V I: 196.00A / 201.20A / 196.80A kW: 10958.400 kW  Unbal: 1.56% as at 2026-06-26 11:24	VTHD: 0.5% / 0.8% / 0.5% PF: 0.942	Compliant
Stanger-Groutville Phase1 (33KV) / Feeder 4 Stanger Substation	V: 19473.0V / 19023.0V / 20454.0V I: 218.40A / 227.20A / 222.40A kW: 12254.400 kW  Unbal: 7.28% as at 2026-06-26 11:39	VTHD: 0.8% / 1.5% / 1.1% PF: 0.927	Compliant
Stanger-Sappi Feed 1 (33KV) / Feeder 5 Stanger Substation	V: 19695.0V / 19911.0V / 19959.0V I: 107.00A / 118.00A / 112.50A kW: 6712.500 kW  Unbal: 1.33% as at 2026-06-26 11:24	VTHD: 0.5% / 0.8% / 0.5% PF: 0.996	Compliant
Stanger-Sappi Feed 2 (33KV) / Feeder 6 Stanger Substation	V: 19680.0V / 19884.0V / 19971.0V I: 115.00A / 120.50A / 111.00A kW: 6885.000 kW  Unbal: 1.47% as at 2026-06-26 11:26	VTHD: 0.5% / 0.8% / 0.5% PF: 0.997	Compliant
Shakaskraal-Feeder 1 (North) (33KV) / Feeder 7 Shakaskraal Substation	V: 33591.0V / 0.0V / 33798.0V I: 99.20A / 0.00A / 94.40A kW: 5577.600 kW  Unbal: — as at 2026-06-26 06:12	VTHD: 0.7% / 0.0% / 0.5% PF: 0.842	Low PF Warning
Shakaskraal-Feeder 2 (South) (33KV) / Feeder 8 Shakaskraal Substation	V: 34215.0V / 0.0V / 34362.0V I: 371.20A / 8.00A / 366.40A kW: 20937.600 kW  Unbal: — as at 2026-06-26 11:35	VTHD: 0.8% / 0.0% / 0.8% PF: 0.812	Low PF Warning
Ballito Sub Incomer (Feeder 1) (33KV) / Feeder 9 Driefontein Substation's	V: 32505.0V / 0.0V / 33291.0V I: 306.60A / 0.00A / 315.00A kW: 17535.600 kW  Unbal: — as at 2026-06-26 11:31	VTHD: 1.1% / 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: 20869.40 V Total Current: 4453.9 A Total kW: 103511.100 kW	Mean PF: 0.916	Live

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

Event Type	Count	Severity	Notes
Voltage PQ Threshold Events	37357	High	DLMS event log codes 210-213
Power Failures / Outages	20834	High	Power fail log entries
Power Cycle Events (Up/Down)	33728	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%	7.28%	Non-Compliant
PQ Threshold Events	≤ 40 / quarter	37357	Non-Compliant
Outages	≤ 20 / quarter	20834	Non-Compliant
Harmonic Incidents (H5/H7)	≤ 10	0	Within Limit