A low leakage current (Co, Mn, Ta)-SnO2 varistor tailored by doping with chromium for power grids

A low leakage current (Co, Mn, Ta)-SnO2 varistor tailored by doping with chromium for power grids

A SnO2 varistor which was prospected to be used in ultra-high voltages grids as an overvoltage protection element was developed. The SnO2 varistor was doped with Cr to improve the comprehensive electrical properties. The optimal electrical parameters are achieved when the dopant of Cr is 0.05 mol% i...

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Bibliographic Details
Main Authors: Hongfeng Zhao, Wenxin Liang, Feng Wang, Yuanxiang Zhou, Qingyun Xie
Format: Article
Language:English
Published: Elsevier 2020-09-01
Series:Results in Physics
Subjects:
SnO2 varistor
Leakage current
Barrier height
Microstructure
Online Access:http://www.sciencedirect.com/science/article/pii/S2211379720317812
id doaj-097cfc29f1c84e6a9344068661124947
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spelling doaj-097cfc29f1c84e6a93440686611249472020-11-25T03:42:08ZengElsevierResults in Physics2211-37972020-09-0118103314A low leakage current (Co, Mn, Ta)-SnO2 varistor tailored by doping with chromium for power gridsHongfeng Zhao0Wenxin Liang1Feng Wang2Yuanxiang Zhou3Qingyun Xie4The Wind Solar Storage Division of State Key Laboratory of Control and Simulation of Power System and Generation Equipment, School of Electrical Engineering, Xinjiang University, Urumqi 830046, PR China; Corresponding author.The Wind Solar Storage Division of State Key Laboratory of Control and Simulation of Power System and Generation Equipment, School of Electrical Engineering, Xinjiang University, Urumqi 830046, PR ChinaXidian Surge Arrester Co., Ltd., Xi’an, Shaanxi 710200, PR ChinaThe Wind Solar Storage Division of State Key Laboratory of Control and Simulation of Power System and Generation Equipment, School of Electrical Engineering, Xinjiang University, Urumqi 830046, PR ChinaXidian Surge Arrester Co., Ltd., Xi’an, Shaanxi 710200, PR ChinaA SnO2 varistor which was prospected to be used in ultra-high voltages grids as an overvoltage protection element was developed. The SnO2 varistor was doped with Cr to improve the comprehensive electrical properties. The optimal electrical parameters are achieved when the dopant of Cr is 0.05 mol% in this article. The voltage gradient of the varistor with Cr 0.05 mol% dopant is 787 V/mm, the nonlinearity is 50 and the leakage current is 7.8 μA/cm2.http://www.sciencedirect.com/science/article/pii/S2211379720317812SnO2 varistorLeakage currentBarrier heightMicrostructure
collection DOAJ
language English
format Article
sources DOAJ
author Hongfeng Zhao
Wenxin Liang
Feng Wang
Yuanxiang Zhou
Qingyun Xie
spellingShingle Hongfeng Zhao
Wenxin Liang
Feng Wang
Yuanxiang Zhou
Qingyun Xie
A low leakage current (Co, Mn, Ta)-SnO2 varistor tailored by doping with chromium for power grids
Results in Physics
SnO2 varistor
Leakage current
Barrier height
Microstructure
author_facet Hongfeng Zhao
Wenxin Liang
Feng Wang
Yuanxiang Zhou
Qingyun Xie
author_sort Hongfeng Zhao
title A low leakage current (Co, Mn, Ta)-SnO2 varistor tailored by doping with chromium for power grids
title_short A low leakage current (Co, Mn, Ta)-SnO2 varistor tailored by doping with chromium for power grids
title_full A low leakage current (Co, Mn, Ta)-SnO2 varistor tailored by doping with chromium for power grids
title_fullStr A low leakage current (Co, Mn, Ta)-SnO2 varistor tailored by doping with chromium for power grids
title_full_unstemmed A low leakage current (Co, Mn, Ta)-SnO2 varistor tailored by doping with chromium for power grids
title_sort low leakage current (co, mn, ta)-sno2 varistor tailored by doping with chromium for power grids
publisher Elsevier
series Results in Physics
issn 2211-3797
publishDate 2020-09-01
description A SnO2 varistor which was prospected to be used in ultra-high voltages grids as an overvoltage protection element was developed. The SnO2 varistor was doped with Cr to improve the comprehensive electrical properties. The optimal electrical parameters are achieved when the dopant of Cr is 0.05 mol% in this article. The voltage gradient of the varistor with Cr 0.05 mol% dopant is 787 V/mm, the nonlinearity is 50 and the leakage current is 7.8 μA/cm2.
topic SnO2 varistor
Leakage current
Barrier height
Microstructure
url http://www.sciencedirect.com/science/article/pii/S2211379720317812
work_keys_str_mv AT hongfengzhao alowleakagecurrentcomntasno2varistortailoredbydopingwithchromiumforpowergrids
AT wenxinliang alowleakagecurrentcomntasno2varistortailoredbydopingwithchromiumforpowergrids
AT fengwang alowleakagecurrentcomntasno2varistortailoredbydopingwithchromiumforpowergrids
AT yuanxiangzhou alowleakagecurrentcomntasno2varistortailoredbydopingwithchromiumforpowergrids
AT qingyunxie alowleakagecurrentcomntasno2varistortailoredbydopingwithchromiumforpowergrids
AT hongfengzhao lowleakagecurrentcomntasno2varistortailoredbydopingwithchromiumforpowergrids
AT wenxinliang lowleakagecurrentcomntasno2varistortailoredbydopingwithchromiumforpowergrids
AT fengwang lowleakagecurrentcomntasno2varistortailoredbydopingwithchromiumforpowergrids
AT yuanxiangzhou lowleakagecurrentcomntasno2varistortailoredbydopingwithchromiumforpowergrids
AT qingyunxie lowleakagecurrentcomntasno2varistortailoredbydopingwithchromiumforpowergrids
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