GENERATOR PROTECTION STUDIES AT KAPAR ENERGY VENTURES POWER STATION (KEV)

The main purpose of electric device is to isolate the faulted component from the healthy part as fast as possible in order to prevent further damage and endangering human life. The objectives of these studies are to study the overall generator and generator transformer protection at Kapar Energy Ventures and propose recommendation to improve the protection setting and coordination (if required).Generator protection is very important to safe guard the generator at Kapar Energy Ventures power station. Nevertheless, the auxiliary system to the generator plays an equally vital role to ensure that the generator continue to work as intended. There were times that generator and its auxiliary equipment had tripped due to miscoordinated protection system or wrong settings. A protection system must satisfy the following requirements Selective - disconnect the equipment is restricted to the nurumum necessary to isolate fault. Sensitivity - sensitive enough to operate under minimum fault condition. Stable - stable and remain inoperative under certain specific condition . Fast - fast operation in order to clear the fault from the system and to minimize damage to the affected component Reliable - the protective equipment should not fail to operate in the events of faults in the protected zone. It may be necessary to provide backup protection to cover the failure the remaining protectio

INDONESIAN FEMALE FACTORY WORKERS: THE GENDERED MIGRATION POLICY IN MALAYSIA

Recruitment of foreign workers by Malaysian employers is subject to the requirements set by the Malaysian government. Immigration policy is one of the platforms through which the government can encourage or discourage and shape migration. The shifts at both the policy/governmental and public levels have impacted not only on the migration pathways of the Indonesian female migrants in this study (that is, who can work and where), but also on the everyday experiences of women migrants in Malaysia, both at work and in public. This paper has provided a discussion of the terms and conditions of employment contracts, recruitment policy, the general public ambivalence about foreign workers in Malaysia, and as well more local Melaka-based perceptions of Indonesian factory workers. I conducted interviews with 13 migration stakeholders. This group consisted of the following: four staff or managers of human resources departments in four factories; three outsourcing agents or staff members; three government officials (two Malaysian and an Indonesian Attaché); three representatives of civil society (an in-house union leader, an Indonesian expatriate involved in a welfare organization for female Indonesian migrants, and a Malaysian trade union organizer). In relation to female migrants, there was a dichotomized view of them either as victims or perpetrators of abuse. While the media reported very little about female factory workers specifically, the discussion demonstrated the intersection between widely circulated ideas on Indonesian women’s sexual laxity and their opportunistic attitude to money. In response to migrant-related issues, the government’s current position on migration is ambiguous and there have been a number of restrictions imposed on recruitment, including an increase in recruitment costs and gender-related policy

An Analysis of Students’ Motivation in Learning English During Pandemic Covid-19 at the Seventh Grade of SMPN 1 Bukit Batu

This research is motivated by most of the students have low participation in learning English during pandemic COVID-19. The aim is to know Students' intrinsic motivation and Students’ extrinsic motivation in learning English during pandemic COVID-19. The method used is a survey method with a quantitative descriptive approach. The subjects of this research are the students of seventh grade of SMPN 1 Bukit Batu in the academic year of 2021/2022. The sampling technique used is simple random sampling, the researcher takes the sample using lottery so that this study used 86 students to be used as samples. The data in this study were obtained by distributing questionnaires in the form of statements using a Likert scale. Data analysis techniques using descriptive statistics. The results of this study show that 1) The average level of students' intrinsic motivation in learning English during the pandemic COVID-19 is in the excellent category. 2) Average level of students' extrinsic motivation in learning English during the pandemic COVID-19 in the Good categor

An Analysis of Students’ Motivation in Learning English During Pandemic Covid-19 at the Seventh Grade of SMPN 1 Bukit Batu

This research is motivated by most of the students have low participation in learning English during pandemic COVID-19. The aim is to know Students' intrinsic motivation and Students’ extrinsic motivation in learning English during pandemic COVID-19. The method used is a survey method with a quantitative descriptive approach. The subjects of this research are the students of seventh grade of SMPN 1 Bukit Batu in the academic year of 2021/2022. The sampling technique used is simple random sampling, the researcher takes the sample using lottery so that this study used 86 students to be used as samples. The data in this study were obtained by distributing questionnaires in the form of statements using a Likert scale. Data analysis techniques using descriptive statistics. The results of this study show that 1) The average level of students' intrinsic motivation in learning English during the pandemic COVID-19 is in the excellent category. 2) Average level of students' extrinsic motivation in learning English during the pandemic COVID-19 in the Good categor

CONVERTER FOR WIRELESS POWER TRANSFER IN ELECTRIC VEHICLE BATTERY CHARGING SYSTEM

Electric vehicle does not require oil consumption and it does not emit gas pollutants as it uses electrical engine to run its system. Electric vehicle provides the solution for the awareness of the limited fossil fuels and environmental issues such as green house gas emission. The technical solution of the electric vehicle charging system is one of the challenges because it does not have standard solutions. In the future, wireless charging system is the best method of electric vehicle charging system compared to the conventional plug-in or conductive charging as it offers more convinient, faster and user friendly of charging system. This paper addresses the design of the converter for wireless power transfer in electric vehicle battery charging system. A research studies about electric vehicle charging system was made and all related theories and information are gathered in a literature review. With the pre-planned methodology that was made to guide the project flow, a converter design is develop from a resonant converter basic design approach using PSPICE simulation by determining the current and voltages, in several points of the circuit. The project has proved that by using this method, a variable DC output voltage of the converter can be obtained by controlling the value of the switching frequency. With this characteristic, the objective of the project has been achieved. However, a further research on rectifier for very high frequency should be made to improve the power transfer efficiency which is very significant in the circuit design

Voltage and load profiles estimation of distribution network using independent component analysis / Mashitah Mohd Hussain

This thesis presents research on voltage and load profiles estimation using independent component analysis technique. The uniqueness of this technique is limited information parameters on distribution system required. Usually voltage and load profiles are used as reference to electricity provider when supplying electricity to consumer on proper tariff. Thus, it is important to capture profiles accurately in order to avoid energy wastage and high cost for equipment installation. The work presented in this thesis is using statistical technique to predict voltage profile at source distribution system and load profiles on distribution system. Initially, the research focuses on three main tasks. First, voltage profile on source distribution system is estimated. The voltage profile is predicted using Independent Component Analysis (lCA) algorithm. The voltage profiles are estimated for 24- hours with time interval of 1 minute. Theoretically, when voltage source is controlled, the losses occur on the system is reduced. The task and analysis presented will help system loss their power while transmitting power from transmission to distribution system. Secondly, load profile in a multiple power flow solutions for every minute in 24 hours per day is estimated. A method to calculate multiple solutions of non linear profile is introduced. The Power System SimulationlEngineering (PSS@E) and python has been used to solve the load power flow. The result of this power flow solutions has been used to estimate the load profiles for each load buses using Independent Component Analysis (lCA) without any knowledge of parameter and network topology of the systems. The proposed algorithm is tested with IEEE 69 test bus system which represents the distribution part and the method of ICA has been programmed in MATLAB R2012b version. Next, an electrical load profiles is estimated using limited information to ensure proper power usage measurement of the customers. ICA technique is able to separate the mixed signal into their source signals. Using this method, the load profiles on feeder distribution can be estimated without any knowledge of the network topology and electrical parameters. In addition, a real-time load profiles on feeder distribution can be established instead of load modelling technique by using incoming distribution feeder data profiles. The ability of ICA algorithm to separate the profiles was evaluated. The work is focused on analysing the results of simulation using ICA method including voltage source control and electric losses of the system. Simulation results were obtained in Chapter 4.This thesis compares the result between original and estimated load profiles. Meanwhile, the result of voltage profile is tested on distribution system to investigate losses behaviour. The losses of simulation results with different tap changer and voltage set presented in first task are compared and discussed in this thesis. The estimation quality is verified by using error measures of the load profiles. All simulation results and errors of estimations are discussed in this thesis

ENVIRONMENTAL STRESS ON THE REPRODUCTION OF NON-HUMAN PRIMATES

The aim of this review paper is to present some aspects of environmental stress, such as climate change and food limitation that could affect nonhuman primate population due to poor reproductive performance. The International Union for Conservation of Nature (IUCN) lists more than a third of world’s primates are critically endangered or vulnerable. Nonhuman primates, which are the closest biological relative to humans, are threatened with extinction from human activities and environmental stress. Deforestation is the main problem that intercalates with climate change. Either, indirectly or directly, those extinction factors are able to interrupt the physiological basis of reproduction in nonhuman primates. Many research on other species showed that high temperature or heat stress has a negative effect on reproductive performance by interfering the hypothalamic-pituitary-gonadal axis. Therefore, to conserve and prolong the survivability and sustainability of nonhuman primates in captive and wild nature, more works and research have to be done

Kegiatan Kokurikulum di Sekolah Membantu Membina Daya Kepimpinan di Kalangan Pelajar Menengah Atas Kolej Sultan Abdul Hamid

In various instances, the researcher found that many people were interested in the importance of co-curricular activities in educational process. However not many individual showed genuine interest in the field. Therefore the purpose of the study was to show evidence of contribution obtained from co-curricular activities especially in developing students’ leadership. Research Objective : Three specific objectives were; (1) to find the difference in the degree of involvement among the upper secondary students of Kolej Sultan Abdul Hamid, Alor Setar, Kedah Darul Aman in co-curricular activities; (2) to find the difference in students’ leadership and (3) to analyse the correlation between the degree of involvement in co-curricular activities and students’ leadership. Research Methods : 200 respondents were chosen. They were ealier identified as very active group (100 students) and active group (100 students). They were asked to answer questionaires regarding students’ personal particulars and attitudes towards co-curriculum; the degree of involvement in co-curriculum and students’ leadership style. Hypotheses were tested using the t-test and Pearson Correlation Coefficient Models. Results : The test showed that there were differences in the students’ involvement and leadership style between the very active and the active group. There was a positive correlation between the degree of involvement and leadership style. The finding rejected null hypotheses and accepted alternative hypotheses. Hence, the involvement of very active students in co-curricular activities can enhance and develop their leadership styles

Streamflow Predictive Model Using Reliable Distribution Method To Enhance Small Hydropower System Performance

Nowadays, increasing electricity demand and rural electrification upgrading make renewable energy becomes more popular. Some examples of renewable energy applied in Malaysia are solar, biomass and hydropower. For hydropower, it can be classified into several types and schemes. For types, it depends on the power generated by the system, while schemes, it related to its operating mechanism. In Malaysia, generally, the smallhydropower system tied with 21 years Feed-In-Tariff (FiT) policy offered by Sustainable Energy Development Authority (SEDA) and for rural electrification, small-hydropower system based on run-of-river schemes is much better in terms of total electricity generated, sustainability, reliability and environmental friendly. Therefore, to make sure the sustainability and reliability of the system, understanding the character of the streamflow is a must. In this research, average daily streamflow data from January to December 2016 from Sungai Perting, Bentong, Pahang small hydropower system were used as data analysis. Statistical analysis in boxplot using R-Software provides first statistical order characteristic of the streamflow in terms of maximum, minimum, mean, median, first quartile and third quartile of the data. While, for distribution analysis, Probability Distribution Function (PDF) model of Gumbel, Weibull 2-parameter, Lognormal and GEV are used to represent the data. Most researchers used Lognormal, Gumbel and Weibull and less study on GEV distribution. Therefore, the GEV is introduced to increase the reliable method applied. Best fit distribution is finding by the help of MATLAB Software based on MLE value. To obtain the performance of the system, the study will focus on the turbine power generated related to the streamflow. From the results, 8 out of 12 months of the streamflow distribution exhibit GEV function and have maximum MLE values compared to the others. As for the performance of the system, streamflow is directly proportional to the power generated by the turbine