Dina Maizana Maiz Ahmad, Ir.

 

This page provides access to research works by Ir. Dina Maizana Maiz Ahmad, currently a Senior Lecturer of School of Electrical Systems Engineering, Universiti Malaysia Perlis.

Recent Submissions

  • Effect of stack of transformer core lamination on losses and flux distribution in 3-phase distribution transformers 1000kVa 

    Ismail, Daut; Dina Maziana, Maiz Ahmad; Shuhaimi, Zakaria; Soib, Taib (Universiti Malaysia Perlis, 2008)
    This paper describes the results of an investigation on the effect of different amount of layers per stack of core lamination in the three of 3-phase distribution transformers 1000kVA. The investigation involves the variation ...

  • 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. ...

  • Effect different limb of transformer core assemble on performance 

    Dina Maizana, Maiz Ahmad, Ir.; Mohd Afif, Mohd Radzi; Nuriziani, Hussin (Trans Tech Publications, 2014)
    This paper described the performance of transformer affected by different limb assembling. The experiment that used to investigate core is no-load, short circuit and load test to find the core loss, copper loss, flux leakage ...

  • Effect of rubber material clamp on core loss of 3-phase 100 kVA transformer core 

    Dina Maizana, Maiz Ahmad, Ir. (Asian Network for Scientific Information, 2013)
    This study describes the result of an investigation on the effect of rubber material clamp of core lamination with stagger yoke on three 100 kVA three-phase distribution transformer. The investigation involves the variation ...

  • 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 ...

  • 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% ...