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| Analysis and preventive measures of main transformer overexcitation protection maloperation caused by inconsistent reference voltage |
| Guan Yanwei, Li Zhibo, Yue Xiaoming |
| Rundian Energy Science and Technology Co. Ltd, Zhengzhou 450002 |
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Abstract Based on the analysis of a main transformer overexcitation protection maloperation, the existing problems in the setting calculation of the main transformer overexcitation protection on site are exposed. Through the investigation of the logic of the main transformer overexcitation protection of different mainstream protection manufacturers, the precautions and preventive measures in the setting calculation of the main transformer overexcitation protection of different protection manufacturers are given. For the setting calculation of the overexcitation protection, equipment Safe and reliable operation has certain reference value.
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Received: 12 May 2020
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| Cite this article: |
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Guan Yanwei,Li Zhibo,Yue Xiaoming. Analysis and preventive measures of main transformer overexcitation protection maloperation caused by inconsistent reference voltage[J]. Electrical Engineering, 2020, 21(12): 102-104.
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| URL: |
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http://dqjs.cesmedia.cn/EN/Y2020/V21/I12/102
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[1] GB/T 14285—2006. 继电保护和安全自动装置技术规程[S].
[2] DL/T 684—2012. 大型发电机变压器继电保护整定计算导则[S].
[3] GB 12325—2008. 电能质量供电电压偏差[S].
[4] GB/T 15543—2008. 电能质量-三相电压不平衡[S]. |
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2020, Vol. 21 
