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Configuration and setting with its application of transformer protection in 750 kV Guanting & Lanzhoudong substation
Author(s): 
Pages: 15-17,51
Year: Issue:  18
Journal: RELAY

Keyword:  750 Kv保护配置整定变压器;
Abstract: 主变保护的配置及整定对保证主设备的安全至关重要,介绍了750 kV官亭-兰州东输变电示范工程的系统接线及主变保护配置情况,分析和探讨了示范工程主变保护配置方案、整定、应用原则及整定中应注意的问题,供同行借鉴.750 kV主变后备保护的整定在灵敏性和选择性的取舍等诸多方面存在矛盾,在整定计算时应充分考虑保证电网主设备安全这一重要原则,对后备保护进行合理配置和正确的整定.
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