摘要
Rogowski线圈电流互感器是一种新型电子式电流互感器。与传统的电流互感器相比,它具有动态范围大和测量频带宽的特点,但它的温度特性、长期稳定性不及传统互感器。全数字化设计旨在更进一步提高互感器的性能,它包括数字积分、数字传输、数字化处理和数字输出4个部分。即除了传感头以外,互感器的其余部分均为数字形式。对全数字化设计的Rogowski线圈电流互感器进行了准确度试验和数字输出接口试验。试验结果表明,该数字化设计满足IEC标准关于0.2级互感器的精度要求以及数字输出的相关要求。
Rogowski coil current transformer（RCT） is a kind of novel electronic current transformer. Comparing with traditional current transformer （CT）, RCT has many advantages, such as wide dynamic range, broad frequency band. On the contrary, the temperature characteristics and the long-term stability of RCT are inferior to those of CT. The all-digital design is applied to improve the performance of RCT further, including digital integrating, digital transmission, digital signal processing and digital output. That means all parts of the RCT except the sensor are digital. The accuracy test and the digital output interface test of all-digital RCT have been taken. The test results show that the all-digital designs can meet the 0.2 class accuracy and the requirements of IEC standard.
出处
《高压电器》
EI
CAS
CSCD
北大核心
2006年第6期450-452,共3页
High Voltage Apparatus
