10.3   Voltage Compliance

Parameter	NERSA Limit	Measured Range	Compliance Status
Voltage PQ Events (threshold log)	≤ 40 events per quarter	158891 events	Non-Compliant
Power Failures / Outages	≤ 20 events per quarter	83853 events	Non-Compliant
Voltage Unbalance (max site)	≤ 2%	3.60%	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 1.4%	0	Compliant
3rd Harmonic (V)	Review	Max 1.4%	0	Compliant
5th Harmonic (V)	≤ 3%	Max 1.0%	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: 19395.0V / 19635.0V / 19656.0V I: 156.50A / 161.00A / 159.00A kW: 9075.000 kW  Unbal: 1.33% as at 2026-09-07 09:04	VTHD: 0.6% / 0.8% / 0.6% PF: 0.960	Compliant
Stanger-Feeder 2 (33kV) / Feeder 2 Stanger Substation	V: 19860.0V / 19848.0V / 19596.0V I: 112.80A / 118.00A / 113.60A kW: 6604.800 kW  Unbal: 1.34% as at 2026-09-07 09:12	VTHD: 0.4% / 0.8% / 0.4% PF: 0.959	Compliant
Stanger-Gelnhills Feed (33KV) / Feeder 3 Stanger Substation	V: 19380.0V / 19644.0V / 19644.0V I: 118.00A / 121.20A / 116.40A kW: 6796.800 kW  Unbal: 1.35% as at 2026-09-07 09:03	VTHD: 0.6% / 0.8% / 0.6% PF: 0.974	Compliant
Stanger-Groutville Phase1 (33KV) / Feeder 4 Stanger Substation	V: 19518.0V / 19293.0V / 19998.0V I: 189.60A / 200.80A / 193.60A kW: 10850.400 kW  Unbal: 3.60% as at 2026-09-07 09:01	VTHD: 0.6% / 1.4% / 0.8% PF: 0.949	Compliant
Stanger-Sappi Feed 1 (33KV) / Feeder 5 Stanger Substation	V: 19602.0V / 19839.0V / 19854.0V I: 145.00A / 154.00A / 147.00A kW: 8689.500 kW  Unbal: 1.27% as at 2026-09-07 09:12	VTHD: 0.6% / 0.8% / 0.6% PF: 0.986	Compliant
Stanger-Sappi Feed 2 (33KV) / Feeder 6 Stanger Substation	V: 19566.0V / 19845.0V / 19872.0V I: 135.50A / 149.00A / 136.50A kW: 8265.000 kW  Unbal: 1.55% as at 2026-09-07 09:17	VTHD: 0.6% / 0.8% / 0.6% PF: 0.984	Compliant
Shakaskraal-Feeder 1 (North) (33KV) / Feeder 7 Shakaskraal Substation	V: 33435.0V / 0.0V / 33477.0V I: 88.00A / 0.00A / 84.80A kW: 4804.800 kW  Unbal: — as at 2026-09-07 09:13	VTHD: 0.7% / 0.0% / 0.7% PF: 0.832	Low PF Warning
Shakaskraal-Feeder 2 (South) (33KV) / Feeder 8 Shakaskraal Substation	V: 33795.0V / 0.0V / 33846.0V I: 462.40A / 11.20A / 451.20A kW: 26059.200 kW  Unbal: — as at 2026-09-07 09:06	VTHD: 0.9% / 0.0% / 0.9% PF: 0.845	Low PF Warning
Ballito Sub (Feeder 1) (33KV) / Feeder 9 Driefontein Substation's	V: 32082.0V / 0.0V / 32829.0V I: 0.00A / 0.00A / 0.00A kW: 0.000 kW  Unbal: — as at 2026-09-07 09:12	VTHD: 1.3% / 0.0% / 1.4% PF: -0.017	Low PF Warning
Zimbali Sub (Feeder 2) (33KV) / Feeder 10 Driefontein Substation's	V: 32886.0V / 0.0V / 32220.0V I: 347.20A / 0.00A / 338.00A kW: 18991.200 kW  Unbal: — as at 2026-09-07 09:00	VTHD: 1.4% / 0.0% / 1.3% PF: 0.849	Low PF Warning
Site Combined Totals	Mean Voltage: 20620.50 V Total Current: 4410.3 A Total kW: 100136.700 kW	Mean PF: 0.832	Live

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

Event Type	Count	Severity	Notes
Voltage PQ Threshold Events	158891	High	DLMS event log codes 210-213
Power Failures / Outages	83853	High	Power fail log entries
Power Cycle Events (Up/Down)	107549	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%	3.60%	Non-Compliant
PQ Threshold Events	≤ 40 / quarter	158891	Non-Compliant
Outages	≤ 20 / quarter	83853	Non-Compliant
Harmonic Incidents (H5/H7)	≤ 10	0	Within Limit