Modeling of Power Transmission Line Online Monitoring System
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Power Transmission Line Online Monitoring System (PTOMS) is developed in order to increase the transmission reliability. This paper mostly focus on the modeling of such a system. We can use sensor and information technology for this. This system boost the performance of the protection system. Protection systems are sets of equipments, schemes and policies dedicated to detect faults in the protected elements of the power systems, to disconnect the faulted element and to re-establish the service, if it was the case. In a power system different fault scenarios may occur. We have to overcome from this. The monitoring system used here can be able to sense the parameters like temperature, humidity etc. and predetermine the faults. Insulators are materials which do not allow the flow of current. In power transmission system different types of insulators are used. It may get flash over or break down. From sensing the leakage current we can predetermine its faults. Lightning arrester is an another important device and can sense its fault from leakage current. Wind may cause short circuit, and to avoid vibration preventing devices can be installed. For sensing vibrations, sensors can be used. By remote visual technology we can see the condition of transmission line in the control room and manned patrolling can be avoided. Temperature is an another factor which determine the power to be transmitted and can also be sensed. These sensed data can be transmitted to the monitoring centre through GPRS/CDMA/3G network. Moreover we tried to simulate the model with the available features in the MATLAB/SIMULINK and PROTEUS ISIS Software
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