| 1. | The power line carrier transceiver dedicated to protection
高频保护专用收发信机 |
| 2. | Phase differential high frequency protection equipment
相差动高频保护装置 |
| 3. | Carrier current protection
高频保护装置 |
| 4. | For power system safe and steady operation , it is very useful to insure properly make a set of rapid protection service
确保正确可靠地投入一套全线速动的高频保护，这对电网的安全稳定运行将是极为有利的。 |
| 5. | High - frequency protected channel testing instrument ( hfpcfi ) is a kind of facility used to test the failure of electric circuitry
高频保护通道测试仪是一种用于测试电力线故障信息并实现电路主保护的测试仪器。 |
| 6. | Using the new tri - coaxial - cable as connecting cable in high frequency protection channel to improve the anti - jamming ability of high frequency protection was suggested
提出了用新型三同轴电缆作高频通道连接电缆可提高高频保护抗干扰能力的建议。 |
| 7. | The misoperation of high frequency protection caused by the electromagnetic disturbance was analyzed and the bad anti - jamming ability of existing coaxial - cable which is an important reason of misoperation in high frequency protection was pointed out
摘要对电网高频保护通道受电磁干扰发生不正确动作现象进行了分析，指出现有同轴电缆抗干扰性能差是高频保护不正确动作的重要原因。 |
| 8. | Bypass breaker usually operate instead of line breaker in power system , considering the type of bypass breaker ' s carrier wave protection is different from the one of line versus side carrier wave protection , both protection ' s theory and stop signal , send signal logic have got differentiate , in order to ensure power network stabilize operation , line rapid protection must be run , so it is necessary to validate from protection theory and proceeding test the internal fault condition that the protection in both side of the line is different
电网中经常出现旁路开关代线路开关运行，由于旁路高频保护和线路对侧高频保护型号不一致，保护原理和停信、发信逻辑有区别，为了保证电网的稳定运行又必须要求线路快速保护投入运行，这就要求从保护原理上和进行试验来验证此时由线路两侧不同的保护装置构成的高频保护的动作情况。 |
| 9. | The research on bypass carrier wave protection not only possess his theory value - studied protector ' high frequency signal as well as and dispatch signal logic , penetrate into learn protector ' occlusion type carrier wave protection logic about , but also has important signality in fact ? rovide practice system operation scheme with theory and test evidence
对旁路代路时高频保护配对方案的研究不仅具有其理论价值?对保护装置的高频信号以及收发信逻辑进行研究，深入了解保护装置的闭锁式高频保护逻辑，而且具有较大的现实意义?为实际系统运行方案提供理论和试验依据。 |
