The invention relates to the technical field of online monitoring of arresters and especially relates to an online monitoring device of an integrated
lightning arrester. The invention specifically provides the monitoring device and a measurement method of the
lightning arrester. The device and method integrate a mechanical
lightning arrester monitoring device and an electronic
lightning arrester online monitoring device aiming at a gapless metallic
oxide lightning arrester. The online monitoring device of the integrated
lightning arrester provided by the invention is composed through in-series connection of the mechanical lightning arrester monitoring device and the electronic lightning arrester online monitoring device, wherein after the in-series connection, the overall device is connected to a
resistor disc in parallel. The device has the advantages that a
total current, a resistive current, a quantity of action times, action
occurrence time and other parameters of the lightning arrester can be monitored online; and the device is also equipped with functions such as display of a local mechanical
ampere meter and a counting meter, remote communications and local data storage. The device increases data measurement accuracy, carries out remote transmission of data, enables repair workers to carry out on-site repair, maintenance and installation conveniently, satisfies development requirements of an intelligent substation, provides a new method for the online monitoring of an insulation state of the lightning arrester, is applicable to the online monitoring of the lightning arresters with various
voltage grades and has wide application prospect.