Now showing items 84-103 of 154

    • Investigation of influence of voltage source type on harmonic characteristics 

      Risnidar, Chan Bahaudin; Ismail, Daut, Prof. Dr.; Surya, Hardi Amrin; N., Hashim; Indra, Nisja; Syafruddin, Hasan (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
      This paper discussed about influence of voltage source types on harmonic characteristics. Usually, the voltage source is sinusoidal. But in actually, the condition of the load is has voltage sources through the elements ...
    • Investigation of power factor on harmonic effect due to types of voltage source 

      Risnidar Chan Bahaudin, Ir.; Ismail, Daut, Prof. Dr.; Syafruddin, Hassan; M. I., Yussof; Rosnazri, Ali; Dina Maizana, Maiz Ahmad; Indra, Nisja; Masykur (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      This paper discussed about power factor on harmonic effect due to types of voltage source. Usually, the voltage source is sinusoidal. But in actually, the condition of the load is has voltage sources through the elements ...
    • Investigation of relationships of adjustable speed drive (ASD) and type of voltage source on harmonic characteristics 

      Risnidar Chan Bahaudin, Ir.; Ismail, Daut, Prof. dr.; Surya, Hardi; M. I., Yussof; Rosnazri, Ali; Dina Maizana, Maiz Ahmad; Eddy, Warman; Masykur (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2012-10-16)
      This paper discussed about relationship of ASD and types of voltage source on harmonic characteristics. Usually, the voltage source is sinusoidal. But in actually, the condition of the load is it has voltage sources ...
    • Investigation of rolling and hard direction of magnetic field distribution on Grain Oriented M5 electrical steel material 

      Ismail, Daut; Anayet, Karem; Syafruddin, Hasan; Muhammad Irwanto (Universiti Malaysia Perlis, 2009-10-11)
      This paper describes the idea of the electrical machine design perspective whose aim is latter on to design and development of the copper and aluminum rotor for induction motors to improve the operational efficiency. The ...
    • Investigation on the effect of shunt capacitor and shunt filter on harmonic in distribution system 

      Ismail, Daut; Risnidar Chan, Bahaudin; Che Mat Hadzer; Surya Hardi; Hashim, N.; Nisja, I. (Institute of Electrical and Electronics Engineering (IEEE), 2008)
      Nowadays nonlinear loads are widely used in many consumer equipment and power systems. The main problem in using of nonlinear loads is harmonic distortion. This paper will discuss the effect of application of shunt capacitor ...
    • K-factor due to implementing of DC unbalanced/balanced of a transformer 

      Syafruddin, Hasan; Ismail, Daut, Prof. Dr.; Soib, Taib, Assoc. Prof. Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2007-12-04)
      This paper presents the effects of harmonic distortion on loaded single phase two winding transformer.The impact on K-factor is studied by implementing DC unbalanced and balanced configurations. The measurements are done ...
    • Loss prediction of induction motor using OPERA 2D software 

      Ismail, Daut, Prof. Dr.; Anayet, Karim; Pungut, Ibrahim; Yanawati, Yahya; Nor Shafiqin, Shariffuddin; Faizal (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      The paper discusses the factors which determine the losses of induction motor. The loss mechanisms are described in this paper and it is related to the performance and design characteristics of induction motor such as ...
    • Magnetic levitation (Design PID controller) 

      Noriah Jaafar (Universiti Malaysia PerlisSchool of Electrical Systems Engineering, 2007-04)
      Magnetic levitation systems, based on electromagnetism, are characterized by open loop instability and non linear dynamics are described by highly nonlinear equations that suggest the need of stabilizing controllers which ...
    • Magnetic levitation system 

      Nurul Baith Samsudin (Universiti Malaysia PerlisSchool of Electrical Systems Engineering, 2007-05)
      Magnetic Levitation (Maglev) Systems have gained considerable interest due to their great practical importance in many engineering fields. Maglev technology has been receiving increasing attention because it helps eliminate ...
    • Mathcad® - a 'learning enabler' in power electronics education 

      Kennedy, Robert T.; Tunku Muhamad Nizar, Tunku Mansur; Ismail, Daut (Association of Engineering Education in South East Asia and the Pacific, 2007-02-14)
      Advancement in technology and the resulting affects on curriculum content in an attempt to meet employer's needs requires careful consideration to avoid 'over pruning' essential basics. Developing delivery methodology that ...
    • Measurement of flux density distribution on 100kVA 3-Phase distribution transformer assembled with 90° T-joint and mitred lap corner joint with stagger yoke by using search coil 

      Dina Maziana Maiz, Ahmad; Ismail, Daut (Institute of Electrical and Electronics Engineers (IEEE), 2008-12-01)
      This paper describes the result of measurement of flux distribution on 100kVA 3phase distribution transformer assembled with 90° T-joint and mitred lap corner joint with stagger yoke. The measurement involves the variation ...
    • Measurement of overall power loss and flux leakage in M4 grain-oriented silicon iron assembled with 45o T-joint of three phase transformer core 

      Nor Ashbahani, Md. Kajaan; Ismail, Daut, Prof. Dr.; Md. Reza, Md. Mohyin (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
      In this paper, the result of an investigation on the effect of using M4 Grain-Oriented Silicon Iron core material to the 100kVA three phase distribution transformers has been analyzed. The investigation includes the variation ...
    • Measurement of overall power loss for different three phase 100kVA transformer core material 

      Nor Ashbahani, Md. Kajaan; Ismail, Daut, Prof. Dr.; Nasrul Helmei, Halim (Institute of Electrical and Electronics Engineers (IEEE), 2011-06-06)
      This paper discussed result of an investigation towards the effect of using two different Cold Rolled Grain-Oriented (CRGO) Silicon Iron material to the 100kVA three phase distribution transformer. This experiment used M4 ...
    • Merekabentuk Pengesan Discas Permukaan di dalam "Inclined-Plane Test" dengan menggunakan kaedah optik 

      Muzamir, Isa; Baharuddin, Ismail; Ismail, Daut; Che mat, Hadzer; Faizah, Abu Bakar; Mohd Rafi, Adzman (Universiti Malaysia Perlis, 2007)
      Laporan ini bertujuan untuk memberikan seberapa maklumat tentang ciri-ciri aktiviti discas permukaan secara langsung dan aktiviti discas separa umumnya serta peringkat-peringkat proses merekabentuk alat pengesan terhadap ...
    • Microcontroller based PWM inverter for speed control of a three phase induction motor 

      M. A., Latif; Mohammad Jahangir, Alam; Mohd Abdur Rashid, Dr.; Anayet, Karim; Nur Hafiezza, Ramly; Ismail, Daut, Prof. Dr. (Engg Journals Publications, 2013)
      Three phase induction motor has proven to be an extremely reliable electromechanical energy conversion device for over 100 years. The speed control of induction motor is a crying need for the real world industrial applications. ...
    • A new proposal to solar and grid-connected hybrid electricity for homes and buildings in Malaysia 

      Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Soib, Taib; Noor Shahida, Jamoshid (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
      This paper presents the proposal of a solar and grid-connected hybrid electricity system for homes and also buildings. A new concept of using a DC motor and synchronous generator as an electromechanical inverter is proposed ...
    • Normal flux distribution in 45o T-joint of three phase transformer core with staggered yoke and limb10mm 

      Ismail, Daut, Prof. Dr.; Ahmad, D. M. M. (ACTA Press, 2009-09-07)
      This paper describes the result of measurement of normal flux distribution 3-phase 100kVA transformer core assembled with 450T-joint. The investigation involves the variation of normal flux distribution in the core lamination. ...
    • Optimal allocation and sizing of DG in distribution system using evolutionary programming technique 

      Siti Rafidah, Abdul Rahim; Titik Khawa, Abdul Rahman; Ismail, Musirin; Syahrul Ashikin, Azmi; Zainuddin, Mat Isa; Omar, Aliman; Ismail, Daut, Prof. Dr. (Universiti Teknologi MARA (UiTM), 2008-06-04)
      In recent years, distributed generation (DG) installation has shown an increasing growth in the distribution networks around the world due to the raise in promotion towards utilization of renewable energy resources and ...
    • Optimization of current total harmonic distortion on three-level transformerless photovoltaic inverter 

      Ismail, Daut, Prof. Dr.; Muhammad Irwanto; Mohd Irwan, Yusoff; Gomesh Nair, Shasidharan; Noor Syafawati, Ahmad (Elsevier Ltd., 2012)
      This paper presents a new topology of three-level transformerless photovoltaic (PV) inverter. It consists of three main circuits; they are a pulse driver circuit, a full bridge inverter circuit and a power factor correction ...
    • Optimization of photovoltaic module electrical characteristics using genetic algorithm 

      Muhammad Irwanto; Ismail, Daut, Prof. Dr.; Merdang, Sembiring, Dr. Ir.; Rosnazri, Ali; Dina Maizana, Maiz Ahmad (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      This paper presents the optimization of PV module electrical characteristics using genetic algorithm (GA). A mathematical modeling was used to characterize the electrical characteristics of PV module. A 180 W, 30 V, ...