Industry The experimental results show that this method can effectively analyze the operation characteristics of power system
Industry Due to the adoption of hardware redundancy technology, the failure detection rate of the system has increased from 85% to 97%,
Industry The failure rates are calculated from the component hours of the protection relays and the numbers of failure.
Industry Relay protection devices must operate continuously throughout the year without anomalies. With the integration of advanced
Industry Protective relays are critical in power systems because they serve as decision-making devices that ensure the safe
Industry Relay protection device plays a key role in the stable operation of power grid, and the failure of switching power supply
Industry The percentage of failures per unit time during continuous relay switching (number of operations) under individually specified test
Industry A method of fault tracking for relay protection devices is presented in this paper. Fault tracking means that after the
Industry This study evaluates the impact of SEE on relay protection devices through a Monte Carlo simulation, which is verified
Industry By employing this model, we calculate the reliability and failure rate for six sample space protection devices,
Industry Abstract The action characteristics of power system relay protection devices can well analyze whether the relevant
Industry When required, a fully redundant protection system can be realized using separate and independent sensing devices, trip modules,
Industry This paper first analyzes the failure modes and mechanisms of typical relay protection devices. Based on this analysis, a targeted
Industry Introduction The state maintenance of relay protection devices has great advantages compared with traditional maintenance. First, it
Industry Digital relay protection devices are essential for maintaining the safety and stable operation of power grid. The assessment of
Industry Next, this framework is applied to two representative line-protection schemes – line distance protection and line differential protection
Industry Digital devices introduce an attribute of embedded firmware, which must be analyzed for reliability performance in addition to the
Industry Protection devices such as fuses and protective relays are widely used to identify and isolate faulty areas from
Industry The time-varying failure rate (TFR) has advantages over the mean failure rate (MFR) in accuracy for reliability
Industry This paper discusses protection applications and reliability considerations, and methods such as Synchrophasor monitoring of
Industry The domestically produced chip-based relay protection device has achieved a breakthrough from zero to one, but its reliability has
Industry However, many experts have expressed their anxieties about the reliability of this kind of relays. In this paper, an analytical approach
Industry Problems with the reliability of microprocessor-based protective devices (MPD) have arisen in connection with the worldwide moving
Industry The failure of the internal module often leads to the failure of the relay protection device (RPD), which threatens the
Industry In this paper, the characteristics of the equipment itself and the external environment are comprehensively considered, and various
Industry This work provides a promising solution for improving the reliability evaluation and life prediction of substation relay
Industry Share this article Article information Abstract Relay protection device plays a key role in the stable operation of power grid, and the
Industry The development of digital protective relays is considered as a real revolution in the field of power system protection.
Industry In this study, FTA and FMEA methods are used to systematically diagnose and analyze the reliability of
Industry In this paper, the LS-SVM algorithm is introduced, and the collected basic data is verified by LS-SVM.
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