This research proposes technical performance evaluation and economic decence for the combination of harmonic correction devices in Industry. Currently an electronic device is popularly applied in power network. Although it is a higher performance device than the existing device it still causes the power quality issues and then network failure. Especially harmonic disturbance in the network it is a harmonic source that generates harmonic current into the network. Many types and solutions are available in the present time therefore the suitable and optimal financial solution must be considered. A network model for the analysis of harmonic correction devices suitable solutions and optimal financial has been established in the simulation software that bases on the power and Break Even Point (BEP) equations. The results of analysis shown that the performance of harmonic correction devices suitable solution and BEP of investment in match to the using of a detuned filter bank and an active harmonic filter (case 8) thus these information will be valued for the end-user.

Electricity Generating Authority of Thailand (EGAT) encountered problems voltage swell from the changes of power system configuration high-voltage 115 kV substation name Lopburi2 to radial. Control Center closed capacitor bank caused the steel industry electric power plants and renewable energy solar tripped themselves out. As a result EGAT loosed of power produced of solar power plants. It also affected confidence in the systems power consumption. EGAT’s necessary to learn from this event. This research was simulation power system modeling of “High Voltage Substation Lopburi2” and grid connection both the system EGAT and PEA with EMTDC-PSCAD for analysis of the voltage swell caused by close capacitor bank at “Lopburi2” substation compared with actual events then calculated the voltage swell occurred at high voltage station linkage. Finally this research presents a method of reduction of their impact of close capacitor bank at “Loburi2” to avoid the voltage swell in the future.

This research presents the studying of short circuit in distribution system that affect to critical equipment voltage sag and overvoltage while short circuit event. Lead into the quality of electric user. Effect on economics damaged Distribution system voltage level 22kV of The Provincial Electricity Authority. It is the analysis model by computer program. The event of short circuit set in a many distribution systems. The analysis result Magnitude of voltage while short circuit bring to assessment voltage sag and overvoltage from average voltage of the repeat event. Then set boundary of voltage at load point in a many. The experiment shows the problem of the quality of electric be affect to critical equipment less than load point close connection with substation.

Thesis on the creative space for waiting for high-speed train passengers Nakhon Ratchasima Aims to study architectural design (Design of living space in the waiting room layout) and areas that help promote users or passengers of high-speed electric trains Specialized usage areas and applications that are connected to the BTS station And relationships with the surrounding context Including those who come to use and analyze the behavior of using space This project is designed to solve the problem of waiting space for passengers with insufficient volume and to develop quality and convenience. More fast In response to the group of users All groups to improve the quality of life in using public transport And also has the effect of driving the organization and the country and important things that can be extended in a variety of areas such as business to drive efficiency and speed For both Thai and foreigners Can promote And is a project that can be a model for transport stations or other types that are further developed for the country Which can create a building design that has a specific function And can bring the information of users Contextual effect to design a variety of living spaces Inside the building also Architectural style Of each type of living space There is a relationship with the people who use and the behavior of users. Therefore reflected in the architecture in the form of buildings with various functional areas that are unique to guaranteeing activities or use That is suitable for use that connects to the high speed train station of users in Nakhon Ratchasima

This research presents the simulation of a three-phase generator. The aim is to study and analyze the condition of the generator functions. By simulating the operation of the generator used in factory which use this generator as a backup power source to replace primary power source of electricity-supplier. In this test can start or stop the generator to determine the parameters at that time. The generator is used when the main electrical power distribution error and the generator is disabled when electric power system of electricity-supplier back to normal.