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Now showing items 11-20 of 21
Intergrated grid-connected PV monitoring system
(Universiti Sains Malaysia (USM), 2005-07-22)
This paper presents the development of integrated grid-connected PV system design tool and monitoring system. The development and deployment of photovoltaic system need a strategy in order to get the maximum performance ...
Design of a single-phase rectifier with improved power factor and low THD using boost converter technique
(Science Publications, 2006)
The method of using Boost type of converter was proposed for a 300W single-phase rectifier in this paper. By designing the necessary techniques and methodology, the overall Power Factor (PF) and Total Harmonic Distortion ...
Comparison on losses and flux distribution between two of 3 phase distribution transformer 1000kVA assembled with regular and irregular stack of transformer core lamination
(The Malaysian Research Group (MRG), 2007-12-06)
This paper describe the result of an investigation on the effect of different stack of core lamination in the two of 3 phase distribution transformer 1000kVA. The investigation involves the variation of power loss, building ...
Evaluation of transformer magnetizing core loss
(Asian Network for Scientific Information, 2006)
Loss in transformer core is the electrical power lost in terms of heat within the core of transformer, when core is subjected to AC magnetizing force. It is composed of several types of losses such as Hysterics loss, eddy ...
Comparison between the localized power loss and flux distribution in a three phase distribution transformer 100 kva assembled from various type of T-joint geometry with Staggered Yoke
(ACTA Press, 2008-04-02)
This paper describes the result of an investigation of the variation of localized power loss and flux distribution in 3-phase transformer cores 100kVA assembled from various types of T-joint geometry. The localized power ...
Special designed universal power switching generator for power electronics studies
(Institute of Electrical and Electronics Engineers (IEEE), 2011-06-21)
This paper presents a specially designed power switching generator device that produces 4 types of waveforms; square-wave, sinusoidal PWM, quasi-sinewave or multilevel and high-frequency DC pulses with a total of 14 different ...
Comparison on losses and flux distribution between two 3-phase distribution transformers 1000kVA assembled with air gap and without air gap of transformer core lamination
(Institute of Electrical and Electronics Engineering (IEEE), 2007-12-06)
This paper describes the result of an investigation on the effect of air gap of core lamination in two 3-phase distribution transformers 1000kVA. The investigation involves the variation of power loss, building factor, the ...
Harmonic content as the indicator of transformer core saturation
(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, ...
A 5-level multilevel inverter using LM350 voltage regulator IC
(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 ...
A new proposal to solar and grid-connected hybrid electricity for homes and buildings in Malaysia
(Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
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 proposed ...