Now showing items 73-92 of 154

    • The impacts of stator materials on induction motor nameplate parameters for high performance 

      Ismail, Daut, Prof. Dr.; Mohd S Ezwan, Abdullah; Gomesh Nair, Shasidharan; Yanawati, Yahya; Nor Shafiqin, Shariffuddin; Pungut, Ibrahim (Institute of Electrical and Electronics Engineers (IEEE), 2010-12-13)
      Core materials and magnet wire sizes were analyzed in order to find out the impacts on nameplate for high performance motor. Stack length and back core iron depth of stator geometry design are the parameters involve in ...
    • The impacts of stator outside diameters on induction motor nameplates: Analysis by using a finite element 

      Ismail, Daut, Prof. Dr.; Mastika, Abdullah; Gomesh Nair, Shasidharan; Yanawati, Yahya; Nor Shafiqin, Shariffuddin; Pungut, Ibrahim (Institute of Electrical and Electronics Engineers (IEEE), 2010-12-13)
      Design stimulation by software is important in order to save money and time. This paper is using stimulation software, which is a finite element method, to analyze the stator outside diameter impact on rated current, horse ...
    • Implementation of DSP based SPWM for single phase inverter 

      Mohammad Faridun Naim, Tajuddin; N. H., Ghazali; Ismail, Daut, Prof. Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-14)
      This paper presents theoretical and experimental aspects related to the implementation of a Digital Signal Processor (DSP) based Sinusoidal Pulse Width Modulation (SPWM) for single phase inverter. Two sinusoidal reference ...
    • Improvement of induction machine performance using power factor correction 

      Ismail, Daut, Prof. Dr.; Mohd Irwan, Yusoff; Muhammad Irwanto; Safwati, Ibrahim; Gomesh Nair, Shasidharan; Ezzani, M.; Risnidar, Chan (Institute of Electrical and Electronics Engineers (IEEE), 2011-06-21)
      In this paper, a new approach to improve power factor (PF) and reduced total harmonic distortion (THDi) is generated by a single phase induction motor is proposed. By designing the necessary technique and methodology, the ...
    • In house construction of an induction motor rotor by using 0.35mm thickness of steel sheet for efficiency based investigation 

      Ismail, Daut, Prof. Dr.; Gomesh Nair, Shasidharan; Yanawati, Yahya; Muhammad Irwanto, Misrun; Nor Shafiqin, Shariffuddin (Trans Tech Publications, 2012)
      In this paper, an in house production of a 0.5hp induction motor's rotor is investigated. This investigation considers the induction motor's efficiency and losses dissipation as an important aspect to determine the rotors ...
    • In-plane flux distribution in 45o T-joint of 3phase transformer core with staggered yoke and limb 10mm 

      Ismail, Daut; Ahmad, D. M. M. (ACTA Press, 2009-09-07)
      This paper describes the result of measurement of inplane flux distribution on 100kVA 3phase distribution transformer assembled with 45o T-joint and mitred lap corner joint with stagger yoke and limb with overlap length ...
    • In-plane flux distribution in the mix 60o- 45o T-joint of three phase transformer core 

      Dina Maizana, Maiz Ahmad; Ismail, Daut, Prof. Dr.; Rosnazri, Ali; Risnidar Chan Bahaudin, Ir.; Muhammad Irwanto (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      This paper describes the result of measurement of inplane flux distribution on 100kVA 3phase distribution transformer assembled with the mix 60o- 45o T-joint and mitred lap corner joint with stagger yoke of 10mm. ...
    • Induction motor behavior due to symmetrical and un-symmetrical faults 

      Ismail, Daut, Prof. Dr.; Surya Hardi, Amrin; Tunku Muhammad Nizar, Tunku Mansur; Syafruddin, Hasan; Indra, Nisja; Mohd Hafizi, Idris (Universiti Malaysia Perlis (UniMAP), 2012-06-18)
      This paper presents induction motor behavior caused by symmetrical and unsymmetrical faults. PSCAD/EMTD power system simulation was used for a simple model and the investigation purpose. Voltage sags are generally caused ...
    • Induction motor behavior due to unsymmetrical and symmetrical faults 

      Surya, Hardi; Ismail, Daut, Prof. Dr.; Risnidar Chan Bahaudin; Muhammad Irwanto; Rosnazri, Ali; Indra, Nisja (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      Voltage sags are generally caused by faults on transmission and/or distribution systems. The voltage produced may be either unsymmetrical or symmetrical, depend on type of faults. Unsymmetrical fault is faults caused by ...
    • Influence of soil on grounding system for substation 

      Ismail, Daut; Surya, Hardi; Risnidar Chan, Bahaudin (Kolej Universiti Teknologi Tun Hussein Onn (KUiTTHO), 2006-12-20)
      In designing grounding system of substation, the quantities of grounding system resistance, touch (or mesh) and step voltages must be known for personal safety and equipment protection. The quantities performance is ...
    • Intergrated grid-connected PV monitoring system 

      Mohd Shawal, Jadin; Soib, Taib; Ismail, Daut; Che Mat Hadzer, Mahmud (Universiti Sains Malaysia (USM), 2005-07-22)
      This paper presents the development of integrated grid-connected PV system design tool and monitoring system. The development and deployment of photovoltaic system need a strategy in order to get the maximum performance ...
    • 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 ...