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

Now showing items 1-20 of 87

    • A 5-level multilevel inverter using LM350 voltage regulator IC 

      Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Soib, Taib; Noor Shahida, Jamoshid (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
      This paper presents a 5-level multilevel inverter for low power applications that not exceeding 30W using the common LM350 voltage regulator IC. A microcontroller with appropriate program is used to control on the biasing ...

    • An alternative approach to solar and grid-connected hybrid electricity for homes and buildings in Malaysia 

      Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Soib, Taib, Prof. Madya Dr.; Muhammad Irwanto, Misrun; Surya, Hardi (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      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 ...

    • Analysis flux on transformer core lamination assembled with mix between 60o- 45o T-joint using 2DFEM 

      Dina Maizana, Maiz Ahmad; Ismail, Daut, Prof. Dr.; Fijay, Fauzi (Universiti Malaysia Perlis (UniMAP)Institut Matematik Kejuruteraan, 2010-06-02)
      This paper describes analysis 2DFEM on 100kVA 3phase distribution transformer assembled with mix between 60-45 T-joint and mitred lap corner joint with stagger yoke and limb for one lamination. The simulation involves the ...

    • An analysis on power quality measurement and monitoring techniques for nonlinear load 

      Shahrul Ashikin, Azmi; Mohd Rafi, Adzman; Mohd Fayzul, Mohammed; Siti Rafidah, Abdul Rahim; Zainuddin, Mat Isa; Ismail, Daut, Prof. Dr. (Universiti Malaysia Perlis (UniMAP), 2008-03-15)
      Electric power quality is an aspect of power engineering that has been with us since the inception of power systems. The measurement of the quality of the electric power in a network is therefore becoming an urging need ...

    • Building factor of Grain-Oriented Silicon Iron (3% SiFe) with different thickness on 100kVA three phase distribution transformer core 

      Nor Ashbahani, Mohd Kajaan; Ismail, Daut, Prof. Dr.; Mohd Irwan, Yusoff (Trans Tech Publications., 2012-03)
      The power loss in laminated transformer cores is always greater than the nominal loss of the electrical steel laminations, by a factor known as the building factor. This paper discussed result of an investigation towards ...

    • Clear sky global solar irradiance on tilt angles of photovoltaic module in Perlis, Northern Malaysia 

      Ismail, Daut, Prof. Dr.; Muhammad Irwanto; Mohd Irwan, Yusoff; Gomesh Nair, Shasidharan; Noor Syafawati, Ahmad (Institute of Electrical and Electronics Engineers (IEEE), 2011-06-21)
      The performance of a photovoltaic (PV) is highly influenced by its orientation and its tilt angle with the horizontal, due to the fact that both the orientation and tilt angle change the amount of solar radiation reaching ...

    • Combination of Hargreaves method and linear regression as a new method to estimate solar radiation in Perlis, Northern Malaysia 

      Ismail, Daut, Prof. Dr.; Muhammad Irwanto; Mohd Irwan, Yusoff; Gomesh Nair, Shasidharan; Noor Syafawati, Ahmad (Elsevier Ltd., 2011-11)
      The best way to obtain the solar radiation data of a particular place of interest (POI) is to measure at the specific site continuously and accurately over the long term. However, due to financial, maintenance, calibration ...

    • Comparison of copper rotor bars with aluminium rotor bars using FEM software - A performance evaluation 

      Ismail, Daut, Prof. Dr.; Anayet, Karim; Gomesh Nair, Shasidharan; Asri, M.; Mohd Irwan, Yusoff (Institute of Electrical and Electronics Engineering (IEEE), 2009-12-28)
      It is generally assumed that copper rotor bars can outstand aluminium rotor bars in terms of better performance in losses reduction or money saving. This paper presents the comparison of the aluminium rotor bar and copper ...

    • Comparison of flux density between different thicknesses of non oriented electrical steel material using FEM software 

      Yanawati, Yahya; Ismail, Daut, Prof. Dr.; Siti Rafidah, Abdul Rahim; Nur Shafiqin, Shariffuddin; Mastika, Abdullah; Pungut, Ibrahim (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      Generally, 0.35mm has better performance than 0.5mm thickness of material in terms of losses reduction and money saving potential. This paper presents the comparison of the 0.35mm and 0.5mm thickness of non oriented ...

    • Comparison on performance of voltage sags miligation techniques 

      Norshafinash, Saudin; Noor Shahida, Jamoshid; Latifah, Mohamed; Mohd Aziz, Mohamed; N. M., Nayan; Ismail, Daut, Prof. Dr. (Universiti Teknologi MARA (UiTM), 2009-06-03)
      The increasing use of sophisticated electronics, high efficiency variable speed drive, and power electronic controller, power quality has become an increasing concern to utilities and customers. Voltage sags is the most ...

    • Copper rotor development process of induction motor 

      Ismail, Daut, Prof. Dr.; Anayet, Karim; Mohd Saufi, Ahmad (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      This paper proposes the technique for developing a copper rotor for AC induction motor. A simple substitution of copper for aluminum in the rotor conductor bars will generally provide a significant reduction in I²R ...

    • Core loss measurements of three phase AC induction motor 

      Ismail, Daut, Prof. Dr.; Anayet, Karim; Gomesh Nair, Shasidharan; Asri, N.; Syatirah; Muzhar, M. (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
      Core loss measurements at the field level for AC induction motor have been described. The standard requirements is the conventional no-load test to measure the “rotational losses” (sum of the core, friction & windage losses) ...

    • Current transformer reaction with linear and non-linear loads 

      Ismail, Daut, Prof. Dr.; Khairul Anuar, Mohd Nor; Indra, Nisja; Shatri, C.; Reza, Mohyin (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
      The used of non-linear loads nowadays in industrial system has increased accordance with the present technology. However, the used of non-linear loads supply more harmonic distortion into the distribution systems. ...

    • Current transformer reaction with total harmonic distortion 

      Khairul Anuar, Mohd Nor; Ismail, Daut, Prof. Dr.; Indra, Nisja; M., Reza; Nor Ashbahani, Mohamad Kajaan (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      Current transformer (CT) has a critical role in protective and measurement devices used in both the industrial and the utility worlds. However, the used of current transformer in harmonic condition brings some effects ...

    • Design and modeling of induction motor using opera 2D based on aluminum material 

      Ismail, Daut, Prof. Dr.; Anayet, Karim; Tirapathy, S. (Institute of Electrical and Electronics of Engineering (IEEE), 2009-12-07)
      This paper will describe how finite element analysis can be utilize to design and model the performance of rotary electrical machines. Special interest placed on the induction motor since the design is simple, and has ...

    • Design and sizing photovoltaic system for DC air-conditioning 

      Shatri, C.; Ismail, Daut, Prof. Dr.; Muhammad Irwanto; Noor Syafawati, Ahmad; S. S., Saad; Khairul Anuar, Mohd Nor (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      The author is designing the photovoltaic system to support the DC air-conditioning. There are calculations that have to achieve such as daily load energy (EL), energy directly from sun (Esun), area of photovoltaic ...

    • Design of high-side MOSFET driver using discrete components for 24V operation 

      Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Noor Shahida, Jamoshid; Abdul Rahim, Abd Razak (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
      This paper presents the design of a high-side N-channel MOSFET driver using discrete components for 24Vdc operation. Special level shifting technique is used to increase the gate voltage higher than the supply voltage. ...

    • Determination of power flow and loss allocation using superposition theory method 

      Mohd Herwan, Sulaiman; M.W., Mustafa; O., Aliman; Ismail, Daut, Prof. Dr. (Regional Energy Resources Information Center (RERIC), Asian Institute of Technology, 2008-03)
      This paper discussed a method to determine power flow and loss from individual generator to particular load and line flows for transmission open access. Based on solved load flow, the method uses basic circuit theories ...

    • Determination of reactive power flow in deregulated transmission system 

      Mohd Herwan, Sulaiman; Mohd Wazir, Mustafa; Omar, Aliman; Ismail, Daut, Prof. Dr. (Institut Teknologi Brunei, 2008-11-03)
      The electricity industry throughout the world, which has long been dominated by vertically integrated utilities, is undergoing enormous changes. Deregulation has necessitates the decomposition of three components of electric ...

    • Diagnosis of MV oil filled cable terminations with X-ray imaging and infrared (IR) thermography 

      Mohd Rafi, Adzman; Ismail, Daut, Prof. Dr.; Muzamir, Isa; Baharuddin, Ismail; Omar, Aliman; Lehtonen, Matti; Hyvonen, Petri (Science Publications, 2007)
      A main purpose of doing a diagnostic in cable system including its accessories such as impregnated paper insulated oil filled cable termination is to predict failure before they occur. Those cable and accessories, which ...