Browsing by Author "Indra, Nisja"

Now showing items 1-15 of 15

    • A critical review-power quality concerns 

      Anayet, Karem; Ismail, Daut; Indra, Nisja; Dina Maizana, Maiz Ahmad; Rajendran, S. (Universiti Malaysia Perlis, 2008)
      Power system quality concerns is the art and science of analyzing power system performance within a facility to determine potential problem areas or to better understand known problems in an electrical distribution system. ...

    • 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 ...

    • Different total harmonic distortion effects on current transformer performance 

      Khairul Anuar, Mohd Nor; Ismail, Daut; Indra, Nisja; Mohd Hafiz, Arshad (Universiti Malaysia Perlis (UniMAP), 2012)
      The used on non-linear loads devices such as rectifiers, converters or power suppliers in industrial system has increased accordance to the present technology. However non-linear loads are the main problem that suppliers ...

    • Effects of the total harmonic distortion on the current transformer efficiency 

      Khairul Anuar, Mohd Nor; Ismail, Daut, Prof. Dr.; Indra, Nisja; Siti Rahayu, Mohamed; Mohd Hafiz, Arshad (Universiti Malaysia Perlis (UniMAP), 2012-06-18)
      Total harmonic distortion is an outcome from the nonlinear loads. The used of nonlinear loads that increased especially in industry lead to produce the harmonic distortion. This harmonic distortion brings effects on equipment ...

    • 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)

    • 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 ...

    • 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 ...

    • 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 ...

    • Performing A Single Phase Unidirectional AC Voltage Controller 

      Syafruddin, Hasan, Ir.; Ismail, Daut, Assoc. Prof. Dr.; Baharuddin, Ismail; Indra, Nisja; Mohd. Herwan (School of Electrical Systems Engineering, 2008-01-09)
      To generate a regulated AC voltage that can be used such as for light control, speed control of induction reactor, and etc.

    • The power quality impact of adjustable speed drives in industrial distribution system 

      Surya, Hardi; Ismail, Daut; Mohd Irwanto; Mohd Herwan, Sulaiman; Risnidar, Chan; Indra, Nisja (Universiti Malaysia Pahang (UMP), 2009-06-20)
      Applications of adjustable speed drives (ASDs) have benefited many industrial facilities. The primary function function of any speed drive is to control the speed of a motor. This control technique can significantly ...

    • Simulation of the voltage sag types effects on induction motor performance 

      Surya, Hardi; Ismail, Daut; Indra, Nisja; Risnidar, Chan Bahaudin; Musdar, Dahlan (Universiti Malaysia Perlis (UniMAP), 2013)
      This paper analyzes the effects caused by voltage sag types A, B, C and D on the induction motor performance. The main effects produced can be investigated in current, torque, and motor speed. These effects depend on several ...

    • Sources and Impact of Harmonic in Household and Office 

      Ismail, Daut, Prof. Dr.; Risnidar Chan, Bahaudin, Ir.; Norhaidar, Hashim; Surya Hardi, Ir.; Indra, Nisja (School of Electrical System Engineering, 2008-01-09)