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Now showing items 31-40 of 42
Design of high-side MOSFET driver using discrete components for 24V operation
(Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
This paper presents the design of a high-side N-channel MOSFET driver using discrete components for 24Vdc operation. Special level shifting technique is used to increase the gate voltage higher than the supply voltage. ...
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, ...
Current transformer reaction with linear and non-linear loads
(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. ...
Power losses test for electrical machine design on non-grain oriented different thickness material
(Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
This paper examines the effect of thickness in power loss for non-grain oriented material. In this paper, Epstein frame is optimized for both materials and the data is presented based on 50 Hz. The leakage flux is investigated ...
Measurement of overall power loss and flux leakage in M4 grain-oriented silicon iron assembled with 45o T-joint of three phase transformer core
(Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
In this paper, the result of an investigation on the effect of using M4 Grain-Oriented Silicon Iron core material to the 100kVA three phase distribution transformers has been analyzed. The investigation includes the variation ...
Core loss measurements of three phase AC induction motor
(Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
Core loss measurements at the field level for AC induction motor have been described. The standard requirements is the conventional no-load test to measure the “rotational losses” (sum of the core, friction & windage losses) ...
Sensitivity of low voltage consumer equipment to voltage sags
(Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
Voltage sag is an issue that is becoming increasingly important to electricity consumers at all level of usage. These result from with increasing use of electronic equipment in several sectors for the reason to improve ...
Analysis flux on transformer core lamination assembled with mix between 60o- 45o T-joint using 2DFEM
(Universiti Malaysia Perlis (UniMAP), 2010-06-02)
This paper describes analysis 2DFEM on 100kVA 3phase distribution transformer assembled with mix between 60-45 T-joint and mitred lap corner joint with stagger yoke and limb for one lamination. The simulation involves the ...
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 ...
Photovoltaic powered uninterruptible power supply using smart relay
(Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
Uninterruptible power supply (UPS) sits between a power supply such as wall outlet and devices to prevent undesired feature that can occur within the power source such as outages, sags, surges and bad harmonics from the ...