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220 kV三绕组变压器停电例行试验最优方案的研究

Research and Application of the Optimised Routine Testing Protocol for 220kV Three-winding Transformers

  • 摘要: 电力变压器作为电力系统的核心设备,其运行状态直接影响电网的安全性和稳定性。为确保变压器的正常运行,例行试验是必不可少的。然而,传统的例行试验方法存在接线复杂、效率低下、安全隐患大等问题。文章提出了一种优化的电力变压器例行试验方案,通过合理安排试验顺序、减少接线次数、优化试验流程,显著提高了试验效率和安全性,文章详细阐述了220 kV电压等级的三绕组变压器停电例行试验的最优方案实施步骤和优势。

     

    Abstract: Study on the Optimal Program for Routine Testing of 220 kV Three-Winding Transformers Abstract: The operational conditions of transformers directly impact the safety and stability in power systems, as a critical equipment. Routine testing is essential to ensure normal transformer operation. However, traditional testing methods are facing challenges including complex wiring configurations, low efficiency, and substantial safety risks in present. This paper proposes an optimal program for routine testing of the transformers, which significantly enhances testing efficiency and safety through rationalized test sequencing, minimized wiring modifications, and streamlined procedures. Case study elaborates the operation flow and operational benefits of this optimal program, and the method is applied to 220 kV three-winding transformers during outage maintenance.

     

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