提高大电流温升试验系统效力的补偿技术研究  

Research on Compensation Technology for Improving Efficiency of High Current Temperature Rise Test System

作　　者：王小龙 刘爱华 刘雪吉 WANG Xiaolong;LIU Aihua;LIU Xueji(Gansu Electrical Equipment Group Co.,Ltd.,Lanzhou 730000,China;Tiansui Changcheng Control Electric Appliance Co.,Ltd.,Tianshui 741018,China;China Tianshui Changcheng Switchgear Group Co.,Ltd.,Tianshui 741018,China)

机构地区：[1]甘肃电气集团有限公司,甘肃兰州730000 [2]天水长城控制电器有限责任公司,甘肃天水741018 [3]天水长城开关厂集团有限公司,甘肃天水741018

出　　处：《电器与能效管理技术》2023年第3期69-72,共4页Electrical & Energy Management Technology

摘　　要：在大电流开关设备温升试验中,为解决试验系统由于大电感效应使输出电流达不到要求的问题,基于温升试验系统和大电流试品回路的阻抗特性,通过施加小电流试验方法进行测试和分析计算,获得回路整体的感性分量数据,提出适宜的电容补偿解决方案,并给出了补偿电容器组参数选择、分级投切和保护设置的分析计算方法。采取容性补偿措施后,温升试验系统输出电流满足被试大电流开关设备的试验需要。所提方案无须对原有系统调压升流装置进行增容更换改造,具有效果良好、技术可靠、成本低的优点。In the temperature rise test of high current switchgear,in order to solve the problem that the output current of the test system can not meet the requirements due to the large inductance effect,the impedance characteristics of the temperature rise test system and the high current test circuit are tested and calculated by applying the small current.The overall inductive component data of the circuit is obtained.The appropriate capacitance compensation solution is proposed.The analysis and calculation method of the parameter selection,grading switching and protection setting of the compensation capacitor bank is given.After taking the capacitive compensation measures,the output current of the temperature rise test system meets the test requirements of the tested high current switchgear.The proposed scheme has the advantages of good effectiveness,reliable technology and low cost,and does not need to change the capacity of the pressure regulating and flow raising device of the original system.

关 键 词：补偿电容器 功率因数 无功补偿 大电流试验系统 

分 类 号：TM714.3[电气工程—电力系统及自动化]