10.3   Voltage Compliance

Parameter	NERSA Limit	Measured Range	Compliance Status
Voltage PQ Events (threshold log)	≤ 40 events per quarter	437 events	Non-Compliant
Power Failures / Outages	≤ 20 events per quarter	98 events	Non-Compliant
Voltage Unbalance (max site)	≤ 2%	7.27%	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 0.6%	0	Compliant
7th Harmonic (V)	≤ 3%	Max 0.8%	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: 19647.0V / 19980.0V / 20058.0V I: 44.00A / 45.50A / 43.50A kW: 2610.000 kW  Unbal: 2.07% as at 2026-06-23 18:05	VTHD: 0.5% / 0.7% / 0.4% PF: 0.993	Compliant
Stanger-Feeder 2 (33kV) / Feeder 2 Stanger Substation	V: 20073.0V / 19971.0V / 19641.0V I: 100.80A / 104.00A / 102.80A kW: 6018.000 kW  Unbal: 2.17% as at 2026-06-23 18:14	VTHD: 0.4% / 0.7% / 0.5% PF: 0.975	Compliant
Stanger-Gelnhills Feed (33KV) / Feeder 3 Stanger Substation	V: 19668.0V / 20013.0V / 20064.0V I: 322.00A / 324.80A / 322.00A kW: 18907.200 kW  Unbal: 1.99% as at 2026-06-23 18:08	VTHD: 0.5% / 0.7% / 0.4% PF: 0.976	Compliant
Stanger-Groutville Phase1 (33KV) / Feeder 4 Stanger Substation	V: 19770.0V / 19224.0V / 20670.0V I: 0.00A / 0.00A / 0.00A kW: 0.000 kW  Unbal: 7.27% as at 2026-06-23 18:05	VTHD: 0.7% / 1.4% / 0.9% PF: -0.030	Low PF Warning
Stanger-Sappi Feed 1 (33KV) / Feeder 5 Stanger Substation	V: 19635.0V / 19974.0V / 20052.0V I: 132.00A / 153.00A / 142.50A kW: 8401.500 kW  Unbal: 2.10% as at 2026-06-23 18:15	VTHD: 0.6% / 0.8% / 0.6% PF: 0.981	Compliant
Stanger-Sappi Feed 2 (33KV) / Feeder 6 Stanger Substation	V: 19653.0V / 19995.0V / 20058.0V I: 137.50A / 148.50A / 133.50A kW: 8317.500 kW  Unbal: 2.03% as at 2026-06-23 18:06	VTHD: 0.5% / 0.7% / 0.4% PF: 0.982	Compliant
Shakaskraal-Feeder 1 (North) (33KV) / Feeder 7 Shakaskraal Substation	V: 34242.0V / 0.0V / 34410.0V I: 171.20A / 0.00A / 155.20A kW: 9528.000 kW  Unbal: — as at 2026-06-23 18:09	VTHD: 0.6% / 0.0% / 0.5% PF: 0.850	Compliant
Shakaskraal-Feeder 2 (South) (33KV) / Feeder 8 Shakaskraal Substation	V: 34602.0V / 0.0V / 34716.0V I: 504.00A / 11.20A / 489.60A kW: 29112.000 kW  Unbal: — as at 2026-06-23 18:15	VTHD: 0.7% / 0.0% / 0.7% PF: 0.840	Low PF Warning
Ballito Sub Incomer (Feeder 1) (33KV) / Feeder 9 Driefontein Substation's	V: 33741.0V / 0.0V / 34704.0V I: 109.20A / 0.00A / 109.20A kW: 6377.400 kW  Unbal: — as at 2026-06-23 18:07	VTHD: 0.8% / 0.0% / 0.7% PF: 0.846	Low PF Warning
Zimbali Sub Incomer (Feeder 2) (33KV) / Feeder 10 Driefontein Substation's	V: 34482.0V / 0.0V / 33786.0V I: 249.60A / 0.00A / 236.00A kW: 14138.400 kW  Unbal: — as at 2026-06-23 18:10	VTHD: 1.2% / 0.0% / 1.0% PF: 0.846	Low PF Warning
Site Combined Totals	Mean Voltage: 21094.30 V Total Current: 4291.6 A Total kW: 103410.000 kW	Mean PF: 0.826	Live

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

Event Type	Count	Severity	Notes
Voltage PQ Threshold Events	437	High	DLMS event log codes 210-213
Power Failures / Outages	98	High	Power fail log entries
Power Cycle Events (Up/Down)	324	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%	7.27%	Non-Compliant
PQ Threshold Events	≤ 40 / quarter	437	Non-Compliant
Outages	≤ 20 / quarter	98	Non-Compliant
Harmonic Incidents (H5/H7)	≤ 10	0	Within Limit