Retractable type fall arresters constitute a most effective group of components used in personal protection systems protecting against falls from a height. They are designed primarily for outdoor use, which results in exposure to atmospheric factors associated with risk of corrosion of metal elements. This paper presents the results of a study, in which retractable type fall arresters were expo...

The results presented in this article relate to the study of impact gamma radiation on breakdown voltage gas-filled surge arrester manufactured by CITEL, Littelfuse and EPCOS at an operating 230 V. Radium was considered as a source research. stability well reliability arresters different manufacturers were investigated using statistical methods. This gas component operation based processes that...

Lightning strokes are a main source of transformer failures in distribution systems. The discharge lightning current through transformer's high-voltage (HV) side arresters leads to ground potential rise the tank. In case wye-wye connected with ungrounded HV neutral point, can drive low-voltage (LV) windings that an excessive voltage point by inductive transformation. Simulations measurement-bas...

Metal oxide surge arresters (MOSAs) are a popular solution for dealing with overvoltages due to lightning and switching in power distribution networks. As result, MOSA’s performance longevity have significant impact on the quality of energy frequency outages. A MOSA is determined by several elements such as leakage current, partial discharge, thermal image measured various ways. In this study, ...

At present, UHV surge arresters have a large number of sections and complex structures. The existing live detection online monitoring technologies can no longer effectively determine the problem deterioration internal resistance arrester. This paper studies structure, power supply, temperature humidity measurement wireless transmission methods measuring probes that be placed in arrester for lon...