Rapid vacuum switches offer advantages such as short opening and closing times and low dispersion

making them suitable for power systems and rapidswitching power distribution devices.Traditional mechanical characteristic testing devices for highvoltage switchgear typically have a sampling rate of 0.1 ms

which limits their measurement accuracy and fails to meet the demands for precise testing of the mechanical characteristics of rapid vacuum switches.Moreover

when testing the switching characteristics of rapid switching power distribution devices

it is often necessary to remove the primary connections at the switch interface

causing significant inconvenience for field operations.Therefore

it is essential to develop new technologies and applications for onsite testing of the mechanical characteristics of rapid vacuum switches.This paper presents a novel mechanical characteristic tester that utilizes high frequency alternating current signals as a source

enabling the detection of mechanical characteristics of rapid vacuum switches without the need to dismantle components like reactors.This significantly enhances testing efficiency and provides experimental comparisons with traditional mechanical characteristic testers.Test results indicate that the novel tester achieves higher measurement accuracy than traditional testers

with a sampling rate precise to 0.01 ms.Testing results using a highfrequency AC source are comparable to those obtained with a DC source

allowing for direct detection in circuits with reactors.