Browsing by Author "Surya Hardi, Amrin"
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Adaptive Mho type distance relaying scheme with fault resistance compensation
Muhd. Hafizi, Idris; Mohd. Saufi, Ahmad; Ahmad Zaidi, Abdullah, Engr.; Surya Hardi, Amrin (Institute of Electrical and Electronics Engineers (IEEE), 2013-06)This paper describes an adaptive distance relaying scheme which can eliminate the effect of fault resistance on distance relay zone reach. Distance relay is commonly used as main protection to protect transmission line ... -
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 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 ... -
Testing of contactors under voltage sag and non-sinusoidal voltage conditions
Surya Hardi, Amrin; Ismail, Daut, Prof. Dr.; Muhammad Irwanto, Misrun (Institute of Electrical and Electronics Engineers (IEEE), 2010-11-29)Sensitivity of electromagnetic contactors for voltage sags and non-sinusoidal voltage supply has been carried out by laboratory testing. Effects of sag characteristics such as; sag magnitude, sag duration and point on wave ... -
Tracing reactive power flow and loss in electric power systems
Mohd Herwan, Sulaiman; Mohd Wazir, Mustafa; Omar, Aliman; Ismail, Daut; Surya Hardi, Amrin; Mohamad Suhaizal, Abu Hassan (Regional Energy Resources Information Center (RERIC), Asian Institute of Technology (AIT), 2009-03)This paper suggests a systematic method to trace the reactive power flow and loss named as Proportional Tree Method (PTM). From the power flow solution, the test system is modeled conceptually like a tree, where the reactive ...