Currently, our lives and production heavily rely on electricity. As the number of power users continues to grow, the demand for electricity is also increasing rapidly. In this context, it becomes imperative to enhance our power supply systems in order to meet the surging demand. The implementation of a secondary relay protection loop is vital for ensuring the stability of our power system. However, in practical applications, issues related to insulation in the secondary relay protection loop can lead to errors or malfunctions in the relay protection system, thereby jeopardizing the overall stability of the power grid. With this in mind, this paper focuses on the insulation testing technology for the secondary loop. It introduces an insulation testing method designed specifically for the secondary loop to ensure its safe and stable operation, which is crucial for maintaining the reliability of the entire power system.

Xiangguo Yin, Xiaodong Wei. Study on the insulation test technology of secondary loop for relay protection. Academic Journal of Engineering and Technology Science (2023) Vol. 6, Issue 11: 63-69. https://doi.org/10.25236/AJETS.2023.061110.

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