摘要
针对高压电流互感器需要停电才能进行现场校验的问题,根据现场情况,设计出一种无需停电即可进行现场测试的高低压电流互感器变比测试仪。该系统主要由77e58单片机和射频收发芯片nRF2401、先进的数字电度表电路ade7753构成,详细地叙述了系统设计原理与软硬件的实现方法。该系统具有结构简单,工作可靠,经济实用等特点。通过实验测试,最大测量误差为-0.08%。
For the problem that the high voltage current transformer need to cut power to carry on scene verification, this paper designs a high-low voltage current transformer transformation ratio field test system to carry on the scene test without power cut. This system mainly consists of SCM 77e58, RF transceiver nRF2401 and advanced digital circuit watt-hour meter ade7753. The design principle of the whole system and the method of hardware and software implementations are described in detail. This system has a simple structure and works reliably, economically and practicably. Experiments has proved that the biggest measurement error is -0.08%.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2010年第7期142-146,共5页
Power System Protection and Control
