Voltage Relay Protection at Transmission Lines with Arcing Fault

Utilities are responsible for the generation, transmission, and distribution of electricity to consumers. protection schemes are generally divided into equipment protection and system protection. the main function of equipment protection is to selectively and rapidly detect and disconnect a fault on the protected circuit to ensure optimal power quality to customers and to minimize damage to the primary plant. besides that, it also can prevent damage to healthy equipment that conducts fault voltage during faults and sustains the stability and integrity of the power system. so, it will limit the safety hazard to the power utility personnel and the public. high voltage conditions do not only cause serious damage to the connected load equipment and to the power generation equipment, if not removed, but can cause the loss of the entire electric power system. this paper presents a simulation modeling of voltage relay protection caused by arcing fault at transmission line simulation using matlab simpowersystem.