[1]张宏群,徐彬彬,杨天琦.直流情况下基于瞬态热阻抗模型的MOV散热能力研究[J].电瓷避雷器,2017,140(03):10-13.[doi:10.16188/j.isa.1003-8337.2017.03.002]
 ZHANG Hongqun,XU Binbin,YANG Tianqi.Research on MOV Cooling Capability Based on Transient ThermalImpedance Model under DC Condition[J].,2017,140(03):10-13.[doi:10.16188/j.isa.1003-8337.2017.03.002]
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直流情况下基于瞬态热阻抗模型的MOV散热能力研究()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
140卷
期数:
2017年03期
页码:
10-13
栏目:
避雷器
出版日期:
2017-06-30

文章信息/Info

Title:
Research on MOV Cooling Capability Based on Transient Thermal Impedance Model under DC Condition
作者:
张宏群1徐彬彬12杨天琦2
1. 南京信息工程大学 电子信息与工程学院,南京 210044;2. 南京市气象局 南京市气象服务中心,南京 210009
Author(s):
ZHANG Hongqun1XU Binbin12 YANG Tianqi2
1. The School of Electronic Information and Engineering,Nanjing University of Information Science and Technology,Nanjing 210044, China;2. Nanjing Meteorological Service Center, Nanjing Meteorological Bureau, Nanjing 210009, China
关键词:
氧化锌压敏电阻散热能力热阻瞬态热阻抗模型电涌保护器热熔穿
Keywords:
zinc oxide varistor heat dissipation thermal resistance transient thermal impedance model surge protective device hot melt penetration
DOI:
10.16188/j.isa.1003-8337.2017.03.002
文献标志码:
A
摘要:
利用瞬态热阻抗模型,设计实验研究MOV芯片通过直流电时散热能力的变化特征,结果表明,在通过直流电时,MOV芯片的内部晶体势垒高度并不是直接下降的,存在一个"转折温度",这个温度是势垒高度改变的转折点,低于此温度,势垒高度上升,高于此温度,才是单调下降的。根据此原理,可用直流电对MOV芯片进行合适时间的"预老化",以增强其初始散热能力。
Abstract:
Using the transient thermal impedance model, the design experiment is used to study the variation characteristics of the cooling capacity of MOV chip under DC, The results show that the internal crystal barrier height of the MOV chip is not directly decreased under DC, and there is a "turning temperature", which is the turning point of the change of the barrier height, below this temperature, the barrier height rises, above this temperature, it is monotonically decreasing. According to this principle, DC can be used on the MOV chip for the appropriate time "pre-aging" to enhance its initial cooling capacity.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-02-19 作者简介:张宏群(1982—),女, 副教授,主要从事电子仪器及电涌保护研究。 基金项目:国家自然科学基金项目(编号:41175003);南京市气象科研开发项目(编号:NJ201408)。
更新日期/Last Update: 1900-01-01