Browsing Conference Papers by Author "Syafruddin, Hasan"

Now showing items 1-9 of 9

    • Development of simple multilevel inverter using voltage regulator IC 

      Rosnazri, Ali; Soib, Taib, Prof. Madya Dr.; Risnidar Chan Bahaudin; Dina Maizana, Maiz Ahmad; Syafruddin, Hasan (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      This paper presents the development of a simple 5- level multilevel inverter for low power applications that not exceeding 30W using the common LM350 voltage regulator IC. A microcontroller with dedicated program is ...

    • 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 ...

    • 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 motors performance under symmetrical voltage sags and interruption - Test result 

      Surya Hardi, Amrin; Syafruddin, Hasan; Muhd. Hafizi, Idris; Z., Pane; Chan, R. (Institute of Electrical and Electronics Engineers (IEEE), 2013-06)
      Main source voltage sags are short circuit faults in power systems. These fault currents propagate entire the circuits connected with them. After the fault is removed by circuit breaker opened, the system voltage may recover ...

    • Investigate the power losses for transformer design on different material of CRGO (Grain Oriented Material) 

      Siti Rahayu, Mohamed; Ismail, Daut, Prof. Dr.; Syafruddin, Hasan (Universiti Malaysia Perlis (UniMAP), 2012-06-18)
      The power loss will effect by the silicon contents on Grain Oriented Material. This will discuss about the core loss that occur in two different grain oriented material as M4 and M5 specimens. In this paper baby Epstein ...

    • 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 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 ...

    • 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 ...

    • Magnetization current waveforms and harmonic performance of single phase power transformer under DC bias 

      Syafruddin, Hasan; Ismail, Daut, Prof. Dr.; Siti Rahayu, Mohamed (Universiti Malaysia Perlis (UniMAP), 2012-06-18)
      This paper presents an investigation of voltage-magnetizing current waveforms of single phase power transformer due to DC bias injection through simulation and experimental study. A method base on MATLAB simulation that ...