| 撤除外熔丝消除保护误动 |
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| 引用本文： | 夏长根,杨帆.撤除外熔丝消除保护误动[J].电力电容器与无功补偿,2012,33(3):65-68. |
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| 作者姓名： | 夏长根 杨帆 |
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| 作者单位： | 中国南方电网超高压输电公司,广东 广州,510620 |
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| 摘 要： | 分析了宝安站35 kV并联电容器外熔断器误动的原因,比较了外熔断器和内熔丝的运行特点。针对宝安站并联电容器的具体情况,分析了取消外熔丝、只使用内熔丝和继电保护的可行性,并以单芯电缆替换原先的外熔断器对电容器组进行改造,经过一年多时间运行检验,说明该方法有效可行,提高了电容器运行可靠性,减轻了运行维护工作量。
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| 关 键 词： | 电容器 内熔丝 外熔断器 不等臂双星形接线 不平衡电流保护 |
Elimination Protection Malfunction by Removal of External Fuse |
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| XIA Chang-gen
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YANG Fan.Elimination Protection Malfunction by Removal of External Fuse[J].Power Capacitor $ Reactive Power Compensation,2012,33(3):65-68. |
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| Authors: | XIA Chang-gen YANG Fan |
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| Affiliation: | (China Southern Power Grid Extra High Voltage Transmission Company,Guangzhou 510620,China) |
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| Abstract: | The cause of malfunction of external fuse of 35 kV shunt capacitor at Bao’an station is analyzed and operating characteristics of external fuse and internal fuse is compared.For the specific circumstance of shunt capacitor at Bao’an station,the feasibility of removing external fuse and only using the internal fuse and relaying protection.The capacitor bank can be modified by way of replacing original external fuse with single core cable.Through more than one-year operation,it is proved that the method is feasible,the operation reliability is improved and the maintenance work is reduced. |
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| Keywords: | capacitor internal fuse external fuse unequal double star connection unbalance current protection |
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