| Uhlobo | Inikwe ingqikelelo I-Voltage (kV) | Inikwe ingqikelelo Okwangoku (A) | Ubushushu be-4S Umbane ozinzileyo (A) | Umothuko izinzile Okwangoku (A) | Ugqozi ukumelana ne-voltage(kV) | Amandla-frequency ukumelana neVoltage(kV) | ||
| Ngokwahlukileyo emhlabeni | Phakathi kokuqhekeka | Ngokwahlukileyo emhlabeni | Phakathi kokuqhekeka | |||||
| GW9-15/200 | 15 | 200 | 12500 | 31500 | 75 | 85 | 38 | 42 |
| GW9-15/400 | 15 | 400 | 12500 | 31500 | 75 | 85 | 38 | 42 |
| GW9-15/600 | 15 | 600 | 12500 | 31500 | 75 | 85 | 38 | 42 |
| GW9-15/800 | 15 | 800 | 12500 | 31500 | 75 | 85 | 38 | 42 |
| GW9-15/1000 | 15 | 1000 | 12500 | 31500 | 75 | 85 | 38 | 42 |
| GW9-15/1200 | 15 | 1250 | 12500 | 31500 | 75 | 85 | 38 | 42 |