iosr-JEEE   Volume-17 ~ Issue-2 ~ Mar. – Apr. 2022

Abstract: In electrical power systems or networks, protection systems play a vital role in ensuring system safety and reliability, therefore, optimized performance of the protection system should be intensively evaluated to ensure that no failure is experienced. Evaluating the Burden of a current transformer (CT) is a valuable means of measuring the efficiency of the protection system, since it is the principal point of communication amid the power system network and the protection system. Having compared the performance of rated C800 CT at different.......

Key Words: System protection, Current transformer, Burden, Cable size and length.

[1]. Ariana, H., Michael, J. T., and Brad, H. (2017). Beyond the Knee Point: A Practical Guide to CT Saturation. Schweitzer Engineering Laboratories, Inc.
[2]. Barner, K N. Klingerman, M. Thompson, R. Chowdhury, D. Finney, and S. Samineni, (2019). Out of Phase Synchronization: proceedings of the 73rd Annual Georgia Tech Protective Relaying Conference, Atlanta, GA.
[3]. Cowan, P., Neale, R. (2017): Holistic Substation Asset Management. Energize Power Journal of the South African Institute of Electrical Engineers, 42-25.
[4]. Forford, T. and Linders, J. R. (2018). A Half Cycle Bus Differential Relay and Its Application. IEEE Transactions on Power Apparatus and Systems, vol. 93, no. 4, pp. 1110-1120.
[5]. Linders, J. R., Barnett, C. W. and Chadwick, J. (2018). Relay Performance Considerations with Low-Ratio CTs and High-Fault Currents. IEEE Transactions on Industry Applications, Vol. 31, Issue 2.

Abstract: This study was undertaken to determine the dependence of equilibrium constants of the reactions of 5,5ʹ- dithiobis(2-nitrobenzoate), DTNB, with the sulphydryl groups of dog carbonmonoxyhaemoglobin on pH, and the effect of organic phosphates on these equilibrium constants at 450 nm. The equilibrium constants showed strong pH dependence varying about three orders of magnitude for stripped dog carbonmonoxyhaemoglobin and about four orders of magnitude for haemoglobin in the presence of inositol hexakisphosphate (inositol-P6, an organic
phosphate) between pH 5.6 and 9.0. The values of Krt, the equilibrium constant for the r t tertiary structure transition, are 0.33 and 2.28 for stripped haemoglobin and haemoglobin in the presence of inositol-P6,
respectively. The corresponding t-isomer population are 24.76% and 73.82%. The comparability study showed that inositol-P6 had no effect on the affinity of dog carbonmonoxyhaemoglobin for DTNB at all experimental pHs.

Keywords: pH dependence, DTNB, Dog, Haemoglobin, Inositol-P6.

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Abstract: Due to the adverse effect of various ailing health issues of cattle supply in southern Nigeria, farmers become eager to adopt efficient technical methods for its health monitoring. This study has documented various automated wireless sensor network (wsn) health monitoring system which is used to examine and monitor cattle health status. The major objective of this research work uses of telecommunication based system to monitor growth (increase in weight) and the velocity of movement of cattle, hence determine its health status in real time. The network sensor is inserted on the collar of the cattle that records and stores the data which compares the modeled result with the measured.......

Keywords: Wireless Sensor Network, Automation, Monitor, Base station.

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