有源大功率电阻器校验直流电阻仪的新方法  

A New Method Calibrating Resistor Measurer with Active High-power Resistor Box

作　　者：向珂[1] 徐雁[1] 王刘芳[2] 王贻平[2] 朱琦[2] 韩世忠[1] 

机构地区：[1]华中科技大学电气与电子工程学院,武汉430074 [2]安徽省电力试验研究院,合肥230022

出　　处：《高电压技术》2005年第11期8-9,15,共3页High Voltage Engineering

摘　　要：介绍了由大功率标准电阻与精密电子变压箱构成的有源大功率直流标准电阻器校验直流电阻测量仪的新方法,使校验精度、操作免受大电流、大功率的影响及有源大功率直流标准电阻器的硬、软件设计,分析了其误差的来源。实验表明,该法操作方便,准确度高,可取代传统大功率标准电阻器的校验方法。A new method calibrating direct current resistance measurer with active high power direct current standard resistor box is introduced which consists of a high-power standard resistor and a precise electronic voltage transformer box. The influence of big current and high power in calibration is avoided in this method. The high power direct current standard resistor box is introduced in detail in hardware and software design with analyzing its source of error. The experimental results indicate that this method is easy to operate and the result is precise. It has the capability to replace the traditional method which adopts high-power standard resistors.

关 键 词：大功率 直流标准电阻 直流电阻测量仪 校验 

分 类 号：TM934.1[电气工程—电力电子与电力传动]