| 变电所投运过程中一种电压异常现象的分析 |
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| 引用本文： | 张华,熊和志,杨明辉.变电所投运过程中一种电压异常现象的分析[J].石油工程建设,2004,30(3):61-62. |
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| 作者姓名： | 张华 熊和志 杨明辉 |
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| 作者单位： | 中原油田工程建设总公司,河南濮阳,457001 |
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| 摘 要： | 针对中原油田濮城35kV/6kV快装变电所投运过程中,6kV母线送电后电压互感器二次侧三相对地电压不平衡的情况,进行分析,结论是:在中性点不接地系统中,电压异常现象是由电压互感器的参数与系统各相对地的电容参数配合不当引起的,并据此提出了处理方法。
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| 关 键 词： | 变电所 电压异常 原因分析 改进措施 |
| 文章编号： | 1001-2206(2004)03-0061-02 |
| 修稿时间： | 2004年3月29日 |
Analysis of Voltage Abnormity at Transformation Substation While It Went into Operation |
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| ZHANG Hua.Analysis of Voltage Abnormity at Transformation Substation While It Went into Operation[J].Petroleum Engineering Construction,2004,30(3):61-62. |
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| Authors: | ZHANG Hua |
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| Abstract: | When Pucheng 35 kV/6kV transformation substation of Zhongyuan oilfield went into operation, the secondary three-phase voltages referred to earth of a voltage mutual inductor were in the state of imbalance after the electricity had been sent to bus line. This phenomenon is theoretically analyzed in this paper and the conclusion is got that the voltage abnormity in the system without neutral point connected to earth is caused by parameter mismatching between voltage mutual inductor and phase-to-earth capacitances of the system. Hereby the corresponding improvement measures are provided. |
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| Keywords: | transformer substation voltage abnormity cause analysis improvement measure |
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