10.3   Voltage Compliance

Parameter	NERSA Limit	Measured Range	Compliance Status
Voltage PQ Events (threshold log)	≤ 40 events per quarter	163 events	Non-Compliant
Power Failures / Outages	≤ 20 events per quarter	0 events	Compliant
Voltage Unbalance (max site)	≤ 2%	7.12%	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 1.3%	0	Compliant
5th Harmonic (V)	≤ 3%	Max 0.8%	0	Compliant
7th Harmonic (V)	≤ 3%	Max 0.9%	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: 19773.0V / 20031.0V / 20115.0V I: 42.00A / 43.00A / 41.00A kW: 2683.500 kW  Unbal: 1.71% as at 2026-06-22 19:06	VTHD: 0.5% / 0.7% / 0.4% PF: 0.987	Compliant
Stanger-Feeder 2 (33kV) / Feeder 2 Stanger Substation	V: 20166.0V / 20049.0V / 19827.0V I: 101.60A / 104.40A / 102.40A kW: 5974.800 kW  Unbal: 1.69% as at 2026-06-22 19:10	VTHD: 0.4% / 0.7% / 0.5% PF: 0.973	Compliant
Stanger-Gelnhills Feed (33KV) / Feeder 3 Stanger Substation	V: 19779.0V / 19998.0V / 20094.0V I: 277.20A / 276.00A / 274.40A kW: 15974.400 kW  Unbal: 1.58% as at 2026-06-22 19:11	VTHD: 0.5% / 0.7% / 0.4% PF: 0.975	Compliant
Stanger-Groutville Phase1 (33KV) / Feeder 4 Stanger Substation	V: 19893.0V / 19317.0V / 20739.0V I: 303.20A / 312.00A / 302.40A kW: 17736.000 kW  Unbal: 7.12% as at 2026-06-22 19:01	VTHD: 0.7% / 1.4% / 1.0% PF: 0.965	Compliant
Stanger-Sappi Feed 1 (33KV) / Feeder 5 Stanger Substation	V: 19764.0V / 20007.0V / 20112.0V I: 132.00A / 150.50A / 144.00A kW: 8527.500 kW  Unbal: 1.74% as at 2026-06-22 19:05	VTHD: 0.5% / 0.7% / 0.4% PF: 0.985	Compliant
Stanger-Sappi Feed 2 (33KV) / Feeder 6 Stanger Substation	V: 19800.0V / 20052.0V / 20115.0V I: 144.50A / 152.50A / 140.50A kW: 8629.500 kW  Unbal: 1.58% as at 2026-06-22 19:09	VTHD: 0.5% / 0.7% / 0.4% PF: 0.982	Compliant
Shakaskraal-Feeder 1 (North) (33KV) / Feeder 7 Shakaskraal Substation	V: 34083.0V / 0.0V / 34392.0V I: 145.60A / 0.00A / 132.80A kW: 8121.600 kW  Unbal: — as at 2026-06-22 19:05	VTHD: 0.5% / 0.0% / 0.5% PF: 0.856	Compliant
Shakaskraal-Feeder 2 (South) (33KV) / Feeder 8 Shakaskraal Substation	V: 34590.0V / 0.0V / 34785.0V I: 460.80A / 9.60A / 444.80A kW: 27134.400 kW  Unbal: — as at 2026-06-22 19:03	VTHD: 0.8% / 0.0% / 1.0% PF: 0.850	Compliant
Ballito Sub Incomer (Feeder 1) (33KV) / Feeder 9 Driefontein Substation's	V: 33777.0V / 0.0V / 34635.0V I: 98.40A / 0.00A / 97.80A kW: 5652.000 kW  Unbal: — as at 2026-06-22 19:05	VTHD: 0.8% / 0.0% / 0.7% PF: 0.847	Low PF Warning
Zimbali Sub Incomer (Feeder 2) (33KV) / Feeder 10 Driefontein Substation's	V: 34392.0V / 0.0V / 33861.0V I: 219.20A / 0.00A / 202.80A kW: 12106.800 kW  Unbal: — as at 2026-06-22 19:06	VTHD: 1.2% / 0.0% / 1.2% PF: 0.846	Low PF Warning
Site Combined Totals	Mean Voltage: 21138.20 V Total Current: 4855.4 A Total kW: 112540.500 kW	Mean PF: 0.927	Live

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

Event Type	Count	Severity	Notes
Voltage PQ Threshold Events	163	High	DLMS event log codes 210-213
Power Failures / Outages	0	Low	Power fail log entries
Power Cycle Events (Up/Down)	132	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%	7.12%	Non-Compliant
PQ Threshold Events	≤ 40 / quarter	163	Non-Compliant
Outages	≤ 20 / quarter	0	Compliant
Harmonic Incidents (H5/H7)	≤ 10	0	Within Limit