Now showing items 66-85 of 154

    • Generating electricity in Malaysia using solar updraft tower (SUT) 

      Rosnizam, Zailan; Eng, Yi Fong; Ismail, Daut; Fijay, Fauzi (Universiti Malaysia Pahang (UMP), 2009-06-20)
      This paper presents the possibility of generating electricity for a single house in Malaysia using solar updraft tower (SUT). This paper starts with the short introduction of SUT and the advantages. Then followed with ...
    • Generation of Digital Pulse Width Modulation (DPWM) with TMS320F2812 Digital Signal Processor 

      Mohd Faridun Naim, Tajuddin; M. S., Azizan; Mohd Fayzul, Mohammed; Baharuddin, Ismail; Siti Rafidah, Abdul Rahim; Mohd Rafi, Adzman; Zainuddin, Mat Isa; Syahrul Ashikin, Azmi; Ismail, Daut (Universiti Malaysia Pahang (UMP), 2009-06-20)
      This paper presents the programming and use of TMS320F2812 Digital Signal Processor (DSP) in generating the Digital Pulse Width Modulation (DPWM). The structure and functions of eZdsp 2812 board used in this project is ...
    • Gradient temperature on 3Phase transformer core with staggered yoke with 90 T-joint 

      Ismail, Daut, Prof. Dr.; Dina Maizana, MT; M., Ahmad (Universiti Malaysia Pahang (UMP), 2009-06-20)
      This paper describes the result of measurement of localised temperature rise on 100kVA 3phase distribution transformer assembled with 90o T-joint and mitred lap corner joint with stagger yoke with overlap length of 10mm. ...
    • Harmonic content as the indicator of transformer core saturation 

      Ismail, Daut, Prof. Dr.; Syafruddin, Hassan; Soib, Taib; Risnidar, Chan; Muhammad Irwanto (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
      The paper proposes a measurement method for obtaining the parameters needed to calculate a reliable indicator of the state of transformer core saturation. The major nonlinear effects in transformer core are saturation, ...
    • Harmonic monitoring at UniMAP distributed campus 

      Indra, Nisja; Ismail, Daut, Prof. Dr.; Syafrudin, M.; Risnidar Chan, Bahaudin, Ir.; Surya Hardi, Amrin (Institute of Electrical and Electronics Engineers (IEEE), 2011-06-06)
      This paper an attempt has been made to monitor and analyze the harmonic distortions caused by certain typical non linear loads of an educational institution. The current and voltage harmonic distortion at PCC feeding office ...
    • Harmonic performance of single phase transformer with DC biased 

      Syafruddin, Hasan; Ismail, Daut, Prof. Dr.; Soib, Taib, Prof. Madya Dr.; Dina Maizana, Maiz Ahmad, Ir.; Rosnazri, Ali; Nor Ashbahani, Ashbahani (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      Direct current (DC) flowing through the earthed neutrals of transformer windings causes a DC component in magnetizing current. Owing to nonlinearity, the waveform of this current is strongly distorted. A high enough ...
    • High side MOSFET driver design using discrete components for low voltage applications 

      Pungut, Ibrahim; Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Soib, Taib, Prof. Madya Dr.; Dina Maizana, Maiz Ahmad; Risnidar Chan Bahaudin, Ir. (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      This paper presents the design of a high-side N-channel MOSFET driver using discrete components for low voltage applications, ranging from 3V up to 24Vdc operation. Special level shifting technique is used to increase the ...
    • 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 ...