10.3   Voltage Compliance

Parameter	NERSA Limit	Measured Range	Compliance Status
Voltage PQ Events (threshold log)	≤ 40 events per quarter	158770 events	Non-Compliant
Power Failures / Outages	≤ 20 events per quarter	83835 events	Non-Compliant
Voltage Unbalance (max site)	≤ 2%	6.06%	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 1.6%	0	Compliant
3rd Harmonic (V)	Review	Max 1.5%	0	Compliant
5th Harmonic (V)	≤ 3%	Max 0.9%	0	Compliant
7th Harmonic (V)	≤ 3%	Max 0.6%	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: 19491.0V / 19713.0V / 19857.0V I: 61.50A / 64.50A / 65.00A kW: 3655.500 kW  Unbal: 1.86% as at 2026-07-23 14:57	VTHD: 0.6% / 0.9% / 0.6% PF: 0.982	Compliant
Stanger-Feeder 2 (33kV) / Feeder 2 Stanger Substation	V: 19851.0V / 19704.0V / 19497.0V I: 68.40A / 70.00A / 66.40A kW: 3801.600 kW  Unbal: 1.80% as at 2026-07-23 14:56	VTHD: 0.6% / 0.8% / 0.6% PF: 0.940	Compliant
Stanger-Gelnhills Feed (33KV) / Feeder 3 Stanger Substation	V: 19485.0V / 19710.0V / 19857.0V I: 265.20A / 277.20A / 270.80A kW: 15244.800 kW  Unbal: 1.89% as at 2026-07-23 14:58	VTHD: 0.6% / 0.9% / 0.6% PF: 0.952	Compliant
Stanger-Groutville Phase1 (33KV) / Feeder 4 Stanger Substation	V: 19479.0V / 19200.0V / 20394.0V I: 218.40A / 224.00A / 221.60A kW: 12429.600 kW  Unbal: 6.06% as at 2026-07-23 14:57	VTHD: 0.7% / 1.6% / 0.9% PF: 0.950	Compliant
Stanger-Sappi Feed 1 (33KV) / Feeder 5 Stanger Substation	V: 19602.0V / 19800.0V / 19929.0V I: 133.00A / 145.50A / 139.50A kW: 8130.000 kW  Unbal: 1.65% as at 2026-07-23 14:47	VTHD: 0.7% / 0.9% / 0.6% PF: 0.986	Compliant
Stanger-Sappi Feed 2 (33KV) / Feeder 6 Stanger Substation	V: 19512.0V / 19737.0V / 19875.0V I: 134.00A / 150.50A / 140.50A kW: 8214.000 kW  Unbal: 1.84% as at 2026-07-23 14:53	VTHD: 0.6% / 0.9% / 0.5% PF: 0.977	Compliant
Shakaskraal-Feeder 1 (North) (33KV) / Feeder 7 Shakaskraal Substation	V: 33630.0V / 0.0V / 33924.0V I: 105.60A / 0.00A / 102.40A kW: 5894.400 kW  Unbal: — as at 2026-07-23 14:54	VTHD: 0.8% / 0.0% / 0.6% PF: 0.828	Low PF Warning
Shakaskraal-Feeder 2 (South) (33KV) / Feeder 8 Shakaskraal Substation	V: 33636.0V / 0.0V / 33924.0V I: 377.60A / 8.00A / 372.80A kW: 21374.400 kW  Unbal: — as at 2026-07-23 14:56	VTHD: 0.9% / 0.0% / 1.0% PF: 0.843	Low PF Warning
Ballito Sub (Feeder 1) (33KV) / Feeder 9 Driefontein Substation's	V: 33372.0V / 0.0V / 34137.0V I: 91.80A / 0.00A / 91.80A kW: 5347.800 kW  Unbal: — as at 2026-07-23 14:48	VTHD: 1.0% / 0.0% / 1.1% PF: 0.847	Low PF Warning
Zimbali Sub (Feeder 2) (33KV) / Feeder 10 Driefontein Substation's	V: 33741.0V / 0.0V / 33264.0V I: 251.60A / 0.00A / 237.60A kW: 13898.400 kW  Unbal: — as at 2026-07-23 14:56	VTHD: 1.0% / 0.0% / 0.9% PF: 0.849	Low PF Warning
Site Combined Totals	Mean Voltage: 20810.70 V Total Current: 4355.2 A Total kW: 97990.500 kW	Mean PF: 0.915	Live

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

Event Type	Count	Severity	Notes
Voltage PQ Threshold Events	158770	High	DLMS event log codes 210-213
Power Failures / Outages	83835	High	Power fail log entries
Power Cycle Events (Up/Down)	107513	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%	6.06%	Non-Compliant
PQ Threshold Events	≤ 40 / quarter	158770	Non-Compliant
Outages	≤ 20 / quarter	83835	Non-Compliant
Harmonic Incidents (H5/H7)	≤ 10	0	Within Limit