To enhance the quality of manufacturing as responsibility, build national brand of measurement!
To enhance the quality of manufacturing as responsibility, build national brand of measurement!
| NO | φ | Cosφ | φab | Cosφab | φcb | Cosφcb |
| 1 | -150° | -0.866 | -120° | -0.5 | 180° | -1 |
| 2 | -120° | -0.5 | -90° | 0 | -150° | -0.866 |
| 3 | -90° | 0 | -60° | 0.5 | -120° | -0.5 |
| 4 | -60° | 0.5 | -30° | 0.866 | -90° | 0 |
| 5 | -30° | 0.866 | 0° | 1 | -60° | 0.5 |
| 6 | 0° | 1 | 30° | 0.866 | -30° | 0.866 |
| 7 | 30° | 0.866 | 60° | 0.5 | 0° | 1 |
| 8 | 60° | 0.5 | 90° | 0 | 30° | 0.866 |
| 9 | 90° | 0 | 120° | -0.5 | 60° | 0.5 |
| 10 | 120° | -0.5 | 150° | -0.866 | 90° | 0 |
| 11 | 150° | -0.866 | 180° | -1 | 120° | -0.5 |
| 12 | 180° | -1 | -150° | -0.866 | 150° | -0.866 |
China's leading enterprise in variable frequency power measurement and metering
National variable frequency power measuring instrument (metering station) founder
Research and development unit of national variable frequency power metering standard