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Now showing items 31-40 of 75
Induction motor behavior due to unsymmetrical and symmetrical faults
(Universiti Malaysia Perlis (UniMAP), 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 ...
Different clamp stress impact on losses and flux distribution between two of 3 phase distribution transformer 1000 kVA assembled with stagger yoke of transformer core lamination
(Institute of Electrical and Electronics Engineers (IEEE), 2007-11-25)
The power loss of transformer core are depends on a large extent on mechanical stress. This paper describes the result of an investigation on effect different clamp stress of core lamination in the two of 3 phase distribution ...
Performance comparison different thickness of non oriented electrical steel material using analysis and performance chart from FEM software
(Universiti Malaysia Perlis (UniMAP), 2010-10-16)
With market condition today, the economics are
such that users and engineer are looking for the best
fit for the application at the most reasonable cost in
purchasing induction motors. Generally, 0.35mm
thickness of ...
Comparison on performance of voltage sags miligation techniques
(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 ...
Study of photovoltaic and inverter characteristics
(Universiti Malaysia Perlis (UniMAP), 2010-10-16)
The development of renewable energy is
increasing worldwide because of the growing demand
on energy, high oil prices, and concerns of
environmental impacts. Solar energy is amongst the
highest development of renewable ...
High side MOSFET driver design using discrete components for low voltage applications
(Universiti Malaysia Perlis (UniMAP), 2010-10-16)
This paper presents the design of a high-side N-channel MOSFET driver using discrete components for low voltage applications, ranging from 3V up to 24Vdc operation. Special level shifting technique is used to increase the ...
Predicting the localized flux distribution in three phase induction motor between different stator slot size
(Institute of Electrical and Electronics Engineers (IEEE), 2011-06-06)
A three phase induction motor differences of stator slot size is investigated in terms of its localized flux distribution. The search coil induced voltage method is used to analyze the flux distribution in the stator core. ...
Effect of solar irradiance and temperature on photovoltaic module electrical characteristics
(Universiti Malaysia Perlis (UniMAP), 2010-10-16)
The electrical characteristics of photovoltaic (PV)
module are dependent on solar irradiance and
temperature. It consists of short circuit current, open
circuit voltage, maximum power, fill factor and
efficiency. This ...
Design and sizing photovoltaic system for DC air-conditioning
(Universiti Malaysia Perlis (UniMAP), 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 ...
Predicting an investigation of flux distribution in three phase induction motor stators by using different stator slot sizes
(Universiti Malaysia Perlis (UniMAP), 2010-09-16)
The predicting of different stator slot sizes on flux
distribution in three phase induction motor is
presented. For both stator models, the maximum flux
density is found near the tooth tip and minimum
towards the outer ...