| 1. | Inverse - time characteristic equations for overcurrent relays 过流继电器反向时间特性方程式 |
| 2. | Standard inverse - time characteristic for overcurrent relays 过流继电器的标准反时特性曲线 |
| 3. | Overcurrent relays for 6 . 6 kv receiving 可承受6 . 6kv的过电流继电器 |
| 4. | Inverse time overcurrent relay 反时限过电继电器 |
| 5. | Time overcurrent relay 反时间继电器 |
| 6. | Ac overcurrent relay 交流过电流 |