非常感谢审稿人的意见。本文对OLTC触头类故障在实验室内进行设置，并对

Thank you very much for the comments of the reviewers. This article sets up the OLTC contact faults in the laboratory, and collects and analyzes the vibration signals of different faults. It does not give the diagnosis results immediately, so it belongs to offline monitoring. Online monitoring is the next step. Through real-time observation of OLTC vibration conditions, feature extraction is compared with typical signal features, and the diagnosis result is immediately output. The entire diagnosis process is sampled in about 100ms to 120ms, including the entire action process of M-type OLTC contact switching.

Thank you very much for the comments of the reviewers. In this paper, OLTC contact failure is set up in the laboratory, and the vibration signal of different faults is collected and analyzed, not immediately give the diagnostic results, so it belongs to offline monitoring. Online monitoring is the next step, by observing the vibration of OLTC in real time, feature extraction is compared with typical signal characteristics, and the diagnosis results are immediately produced. The entire diagnostic process is sampled from around 100ms to 120ms and includes the entire motion of the M-type OLTC contact switching.

Thank you very much for your comments. In this paper, the OLTC contact fault is set in the laboratory, and the vibration signals of different faults are collected and analyzed. The diagnosis results are not given immediately, so it belongs to offline monitoring. Online monitoring is the next step of the plan, through the real-time observation of the OLTC vibration conditions for feature extraction, and typical signal features for comparison, and immediately out of the diagnosis results. The whole diagnosis process is sampled from 100ms to 120ms, including the whole operation process of M-type OLTC contact switching.