Syahrun Nizam Md Arshad @ Hashim
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Syahrun Nizam Md Arshad @ Hashim
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Syahrun Nizam, Md Arshad @ Hashim
Alternative Name
Arshad, S. N.M.
Arshad, Syahrun Nizam Bin M.
Nizam Md Arshad, Syahrun
Md Arshad, Syahrun Nizam
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Scopus Author ID
56177750400

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  • Publication
    Analysis on Behavior Grounding Electrode Resistance base on Profiling Method
    ( 2020-07-09)
    Hashim N.H.
    ;
    Syahrun Nizam Md Arshad @ Hashim
    ;
    Halim N.H.
    ;
    Wooi Chin Leong
    ;
    Ariffen A.M.
    ;
    Anuar A.
    ;
    Aqilah Sofiyah Hasni N.
    ;
    Abu Bakar O.
    An earthing system or known as grounding system in an electrical installation where by the grounding system connects specific parts of that installation with the Earth's conductive surface for safety and functional purposes. It is the process of transferring the immediate discharge with the aid of the low resistance wire of the electrical energy directly to the earth. It is really an important role playing in electrical system part as grounding system give protection during fault or lightning occur. In addition, grounding system also give protection for human electrical appliance and building from electrical shocks due to electrical fault or lighting occur. In this research will shows that to identify the best location to install the grounding electrode. This method is used on 10 x 10 meters which is 121 point will be investigated. The result of 0.3m, 0.6m, and 0.9m were analyzed using MATLAB software to produce profiling and shows the perfect location to install the Grounding system electrode.
  • Publication
    Effect of concrete orientation as an enhancement material in grounding system
    ( 2020-07-09)
    Hasni N.A.S.
    ;
    Syahrun Nizam Md Arshad @ Hashim
    ;
    Amizah Md. Ariffen
    ;
    Halim N.H.
    ;
    Wooi Chin Leong
    ;
    Muhammad Izuan Fahmi Romli
    ;
    Bakar O.A.
    To achieve an excellent grounding system, an alternative solution was developed by using enhancement material to modify the soil surrounding the rod. These materials can effectively reduce soil resistivity and grounding resistance for a better grounding system. To achieve this goal, the fundamental part must be taken into account. In this study, the main objective is to analyze different concrete orientations as enhancement material in the grounding system. A 3-D orientation of concrete has been designed using Finite Element Method (FEM) software to analyze the performance of the electric field in the grounding system with different orientation of concrete. Every orientation of concrete had been clarified into four different cases which are full concrete, half concrete, three-quarter concrete, and a quarter concrete. From the result, full concrete is the best orientation of concrete design to be employed at the grounding site as it has a low electric field compared to the other concrete orientation.
  • Publication
    Impact of temperature and irradiance on pv array performance and withstand voltage
    (Iran University of Science and Technology, 2025-06)
    Wooi Chin Leong
    ;
    Syahrun Nizam Md Arshad @ Hashim
    ;
    Jia-Wen Tang
    ;
    Wen-Shan Tan
    ;
    Nur Hazirah Zaini
    ;
    Yuan-Kang Wu
    Photovoltaic (PV) energy is increasingly recognized as an environmentally friendly source of renewable energy. Integrating PV systems into power grids involves power electronic inverters, adding complexity and evolving traditional grids into smarter systems. Ensuring the reliability of decentralized PV generation is crucial, particularly as PV systems are often exposed to extreme weather conditions. This study investigates the impact of temperature and solar radiation on the performance of a PV array, focusing on key characteristics such as open-circuit voltage (VOC), short-circuit current (ISC), and maximum power (PMAX). Using PSCAD/EMTDC simulations, the study analyses these characteristics under varying temperatures (5°C to 45°C) and radiation levels (200 W/m² to 1200 W/m²). Results indicate that VOC increases with higher irradiance but decreases with higher temperatures. ISC increases with both higher radiation and temperature, while PMAX is optimized at high irradiance and low temperatures. The impulse withstand voltage (Vimp), a critical factor for PV system reliability, is assessed according to the PD CLC/TS 50539-12 standard. Findings reveal that at low temperatures and high radiation, the Vimp requirement is highest, emphasizing the need for robust voltage protection in PV systems. These insights underscore the importance of considering local climate conditions and implementing effective thermal management to enhance the performance and reliability of PV systems.
  • Publication
    Simulation of reverse power relay in 11 kV generator protection
    ( 2021-05-03)
    Wooi Chin Leong
    ;
    Lee Y.Y.
    ;
    Nabipour-Afrouzi H.
    ;
    Mousa M.I.
    ;
    Syahrun Nizam Md Arshad @ Hashim
    ;
    Mehranzamir K.
    ;
    Mohamad Nur Khairul Hafizi Rohani
    This paper proposed the modelling and simulation of generator protection for power system using digital reverse power relay. The operations of the power plant are often interrupted by the reverse power generation. Therefore, generators need to be closely monitored and controlled. In this study, 11 kV synchronous generators are connected to 220 kV load through a step-up transformer, and a new model of reverse power relay is added for generator protection. The reverse power relay proposed in this paper is a digital relay with high accuracy and high reacting speed. Several cases based on various types of mechanical inputs to the generator were studied to test the operation of the reverse power relay. This simulation was done using MATLAB/Simulink. The results show that the 11 kV generator protection is successful with this new model reverse power relay. Besides, the simulation results were similar result compared to the theory result. From the simulation results, the integral output of the relay will reach the threshold value 'L' whenever there is a reversed power flow fault found in the system. Consequently, the relay will be triggered to provide protection for the generator. This model has been added into online resources of MATLAB Power System Tools. In addition, this model may also help the engineers to develop the analytical skills under various conditions.
      29  2
  • Publication
    Simulation of differential relay for transformer protection
    ( 2020-03-20)
    Azizan N.S.
    ;
    Wooi Chin Leong
    ;
    Baharuddin Ismail
    ;
    Syahrun Nizam Md Arshad @ Hashim
    ;
    Isa M.
    ;
    Wan Azani Wan Mustafa
    ;
    Rohani MNK
    In electric power system, transformers are an important element and their protection are critical. As the transformer might be damaged during a fault, faster and more selective protection was required. For this purpose, the design of differential protection was utilized. In this study, the differential relay simulation has been successfully done using MATLAB/Simulink. The essential approach is to protect the power transformer against internal faults and avoid interference in the power system. The evaluation has been accomplished at different fault conditions. Several types of faults including double line-to-ground, single line-to-ground and line-to-line faults are studied. Simulation studies were performed and the relays performance with different system parameters and conditions were investigated. The obtained results illustrated for the differential relay represents an appropriate action.
      3  30
  • Publication
    A study on copper and galvanized grounding performance using palm oil fuel ash as new additive material
    ( 2020-01-07)
    Faudzi A.H.M.
    ;
    Wooi Chin Leong
    ;
    Ahmad N.A.
    ;
    Syahrun Nizam Md Arshad @ Hashim
    ;
    Afrouzi H.N.
    ;
    Mohamad Nur Khairul Hafizi Rohani
    This paper aimed to study the improvement of grounding performance by reducing the grounding electrode resistance using palm oil fuel ash as the backfill. This is achieved by mixing the soil with a specific portion of palm oil fuel ash and obtains the grounding electrode resistance value by using Three Pin Method. In order to obtain the grounding electrode resistance, the mixture of palm oil fuel ash and soil were compacted and installed with electrodes. Two types of electrodes were connected to measuring device which is Kyoritsu Digital Earth Tester Model 4105A and grounding electrode resistance values were displayed. The two types of electrodes used in this study were copper and galvanized steel electrodes. It was found that by adding palm oil fuel ash to the soil, the grounding performance can be improved to at least 90% and above for both copper and galvanized steel electrodes. The palm oil fuel ash is very effective in improving the grounding performance at low cost and environmentally friendly.
      29  8
  • Publication
    Study of soil resistivity using wenner four pin method: Case study
    ( 2020-12-07)
    Sazali M.S.
    ;
    Wooi Chin Leong
    ;
    Wong T.S.
    ;
    Syahrun Nizam Md Arshad @ Hashim
    ;
    Abdul-Malek Z.
    ;
    Nabipour-Afrouzi H.
    Soil resistivity is usually measured at the selected site either for new installation or in the existing grounding system. In this paper, soil resistivity test has been done to study the soil resistivity around the 33 kV substation according to IEEE 81-1983 standard. A factory site located in Kulim Hi-tech, Malaysia has been selected to research on the soil resistivity. The soil resistance measured in this study is then be calculated in using the soil resistivity formula. The soil resistivity shows that the longer the distance between rods, the lower the resistivity of soil due to larger soil volume. The lowest soil resistivity around the substation is 3.454 Ω.m, which is on the left side of the substation with a distance of 5 meters between the rods followed by front side with 15.71 Ω.m, right side with 34.243 Ω.m and backside with 45.239 Ω.m. While the highest soil resistivity is 176.306 Ω.m on the right side of the substation with a 2-meter distance between each rod.
      7  21
  • Publication
    Analysis of the Behaviour and Effect of Grounding Filler Materials on Grounding System
    ( 2020-07-09)
    Aqilah Sofiyah Hasni N.
    ;
    Syahrun Nizam Md Arshad @ Hashim
    ;
    Amizah Md. Ariffen
    ;
    Nasrul Helmei Halim
    ;
    Wooi Chin Leong
    ;
    Muhammad Izuan Fahmi Romli
    ;
    Abu Bakar O.
    The grounding system plays an important role in the electrical system part as it gives protection during fault or lightning occur. The main purpose of the grounding system is to protect humans, electrical appliances and buildings from electrical shock due to lightning or another form of electricity that hazardous. Thus, to install an excellent electrical system and complete its circuit, a grounding system performance must be taken into account. But, in certain cases, due to the geological condition, the soil resistivity is not good enough. Therefore, enhancement filler material has been used to reduce grounding resistance. In this project, it is aimed to elaborate on the usage of Coconut Husk, Paddy Husk, and Bentonite as grounding filler materials to reduce the soil resistivity and improves the grounding system. The result showed that Bentonite showed better performance compared to Coconut Husk and Paddy Husk.
      45  3
  • Publication
    Optimization of Distribution System Reliability Using Dandelion Optimizer
    (IEEE, 2024-02)
    Tang Jia Wen
    ;
    Wooi Chin Leong
    ;
    Wen-Shan Tan
    ;
    Hadi Nabipour Afrouzi
    ;
    Syahrun Nizam Md Arshad @ Hashim
    ;
    Yee Von Thien
    This study proposes the Dandelion Optimizer (DO), a novel nature-inspired algorithm based on dandelion plant life cycles, for optimizing lightning protection system (LPS) placement in radial distribution networks with 81 buses. The objective is to minimize System Average Interruption Frequency Index (SAIFI) and Momentary Average Interruption Frequency Index (MAIFI). The DO offers a user-friendly approach to determining optimal solutions and excels in pinpointing optimal LPS deployment locations within distribution systems, concurrently fastening the calculation of SAIFI and MAIFI. Validation involves comprehensive numerical simulations, considering lightning flashover rate, distribution feeder attributes, and LPS configuration. Comparative analysis with Grey Wolf Optimizer (GWO) and Dragonfly Algorithm (DA) affirms DO's superior performance. Notably, DO showcases better capability in finding local optima and faster convergence than GWO and DA. Applying DO to optimise the optimal placements of LPSs yields a commendable 6.16% reduction in reliability indices, surpassing GWO and DA's 6.14% and 5.14% reductions. DO also exhibits heightened convergence speed over GWO and DA.
      3  1
  • Publication
    Analysis behavior of soil resistivity profiling base on UniMAP condition
    ( 2020-01-07)
    Syahrun Nizam Md Arshad @ Hashim
    ;
    Wahib A.H.
    ;
    Halim N.H.
    ;
    Yousof M.F.M.
    ;
    Ariffen A.M.
    ;
    Wooi Chin Leong
    ;
    Abd Rahman M.S.
    The main purpose of the earthing is to ensure that every electrical equipment, house and human are safe when lightning strikes. Lightning phenomenon occur scan produced high voltage and current ant it can caused electrical equipment damage and life danger. Therefore, this project will analyze the behavior of the soil. The main purpose of this project was to select the soil structure and the depth of the electrode suitable for grounding system in UniMAP. Additionally, this project will also analyze the soil resistance for grounding systems using MATLAB Software. From the result it can shows the best point for located grounding rod to ensure optimum grounding system.
      2  19