【摘要】 为了克服模拟器件的温漂、时漂等缺陷,文中提出,在电子式电流互感器中采用数字积分器ADE7759代替传统的模拟积分技术,并对ADE7759的应用进行了介绍。实验表明,采用该数字积分器的电流互感器系统,精度可满足IEC60044-8标准0．2级要求。更多还原

【Abstract】 For overcoming the limitation of analog devices such as temperature drift and time drift and etc, a ADE7759 chip which can be used as a digital integrator in electrical current transformer is adopted. And the usage of ADE7759 is introduced in brief. It is proved by the accuracy experiments that the ECT can meet at 0.2 class in IEC 60044-8.更多还原