Browsing Ismail Daut, Prof. Dr. by Author "Ismail, Daut, Prof. Dr."

Now showing items 21-40 of 87

    • Different clamp stress impact on losses and flux distribution between two of 3 phase distribution transformer 1000 kVA assembled with stagger yoke of transformer core lamination 

      Ismail, Daut, Prof. Dr.; Dina, Maizana,; S., Uthman; Soib B., Taib (Institute of Electrical and Electronics Engineers (IEEE), 2007-11-25)
      The power loss of transformer core are depends on a large extent on mechanical stress. This paper describes the result of an investigation on effect different clamp stress of core lamination in the two of 3 phase distribution ...

    • The effect of different stator slot size on the stator copper loss 

      Nor Shafiqin, Shariffuddin; Ismail, Daut, Prof. Dr.; Yanawati, Yahya; Pungut, Ibrahim; M., Abdullah; Nair, Gomesh; M., Asri (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      The input power to an induction motor is in the form of three phase electric voltages and currents. The first losses encountered in the machine are I2R losses in the stator winding. The stator copper loss occurs when the ...

    • Effect of solar irradiance and temperature on photovoltaic module electrical characteristics 

      M., Irwanto; Ismail, Daut, Prof. Dr.; Merdang, Sembiring, Dr. Ir.; Rosnazri, Ali; S., Champakeow; S., Shema (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      The electrical characteristics of photovoltaic (PV) module are dependent on solar irradiance and temperature. It consists of short circuit current, open circuit voltage, maximum power, fill factor and efficiency. This ...

    • Electromagnetic Compatibility (EMC) Test Instrumentations and Application 

      Surya, Hardi, Ir.; Ismail, Daut, Prof. Dr.; Indra, Nisja; Syafruddin, Hasan, Ir.; Abd Rahim, Abd Razak; Robert Teasdale, Kennedy, Prof.; Risnidar Chan, Bahaudin, Ir.; Aidil, Suhkri (School of Electrical Systems Engineering, 2008-01-09)

    • Energy Saving Through Development of New Copper Rotor of Induction Motor 

      Ismail, Daut, Prof. Dr.; Anayet, Karim; Gomesh Nair, Shasidharan; Syatirah, Mohd Noor; Mohd Asri, Jusoh; Mohd Muzhar, Ahmad Tajuddin (Malaysian Invention & Design Society (MINDS), 2010-05-14)
      This product describes the importance of induction motors is aimed at contributing to energy saving efforts. To investigate induction motor efficiency and loss parameters using new copper rotors. New copper rotors are ...

    • Epstein and iron loss test for Incoming Quality Assurance (IQA) 

      Mastika, Abdullah; Ismail, Daut, Prof. Dr.; Yanawati, Yahya; Nor Shafiqin, Shariffuddin; Pungut, Ibrahim (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      Epstein test is well known method to test the specific total loss in magnetic material. Epstein test procedures are complicated as well as destructive test. Therefore, the Iron Loss Tester is an alternative test and can ...

    • Fabrication and investigation of copper rotor bar on 0.5HP induction Motor-A performance and economical study 

      Ismail, Daut, Prof. Dr.; Gomesh Nair, Shasidharan; Yanawati, Yahya; Nor Shafiqin, Shariffuddin; Muhammad Irwanto, Misrun; Mohd Irwan, Yusoff; Anayet, Karim (Australian Journal of Basic and Applied Sciences, 2011-05)
      The paper deals with the fabrication of copper rotor bars for 0.5HP induction motor and then comparing it with the existing aluminium rotor bars. From this experiment the rotors are compared in terms of efficiency increment ...

    • Flux pattern in 1000 kVA 11/.433 kV distribution transformer core to sinusoidal wave 

      Shahanom, Uthman; Ismail, Daut, Prof. Dr.; Dina Maizana, Maiz Ahmad, Ir. (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      A study was conducted using sinusoidal waveform to capture flux pattern in CRGO M5 material in a 1000kVA 11kV 3 phase transformer core. It is found that it takes about 180⁰ electrical degree cycle for a pool of flux ...

    • Flux simulation on 100kVA three-phase transformer core 

      Dina Maizana, Maiz Ahmad, Ir.; Ismail, Daut, Prof. Dr.; Soib, Taib (Praise Worthy Prize S.r.l., 2010-06)
      This paper describes the simulation of flux distribution on 100kVA 3 phase distribution transformer assembled with 60°-45° T-joint and mitred lap corner joint with stagger yoke and limb. The core that being used is 3% ...

    • 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 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. ...