The analysis of the grounding system overvoltage in High voltage substation will be held at Bumnetnarong substation Electricity Generating Authority of Thailand ( EGAT ) by using ATP draw for grounding system’s model of substation also to model overvoltage from lightning and to read the result of overvoltage from differences positions. The advantages of the experiment are to be educated and to who design Grounding system in high voltage substation EGAT. The Study’s result of the over voltage level on Ground Potential Rise: GPR model shows that the pie will show close result to the result from the calculation by standard IEEE Std 80-2000 and the result of the Fault Current at the middle position of the grounding system will result in higher overvoltage than at the result at the corner position of Grounding system. The result of Ground Resistance: Rg shows that the increasing of overvoltage the increasing of Ground Resistance: Rg

The research aimed to study the further study needed at diploma degree and bachelor degree and to investigate the haracteristics of graduates in diploma degree and bachelor degree in accordance with business Enterprises needs. The populations were 1170 of the third -year diploma students in Home Economics Arts and Commercials Program from vocational schools under the Department of Vocational Education 297 of the second year diploma students from educational institutions under Rajamangala Institute of Technology Ministry of Education 1050 of the second year diploma students from educational institution under the Department of Vocational Education 1170 of the upper secondary school students from educational institutions under the Department of Elementary Education Ministry of Education and 146 enterprises. The research instrument was the questionnaire concerning further study needed by students and business enterprises needs in graduates. The data analysis was perfornled by frequency count percentage and mean. The major results were as follows: 1. Further study needed by the third year diploma students 1.1 The needs of diploma students for further study in Home Economics Arts and Commercials program were mostly found the 17 year-old female ones. 1.2 The needs of diploma students for further study in Home Economics program were in Food and Nutrition Administrative Home Economics and Home Economics Communication Arts respectively. The needs of diploma students for further study in Commercials program were in Business Computer and Packaging Design respectively. The needs of diploma students for further study in Arts program were in Packaging Design and Business Computer respectively. 1.3 The needs of bachelor students for further study in Home Economics program were in Food and Nutrition Food and Nutrition-Food Product Development and General Home Economics-Art and Craft Business respectively. The needs of bachelor students for further study in Commercials program were in Infonnation Technology and Hotel Program respectively. The needs of bachelor students for further study in Arts program were in Industrial Product Design and Packaging Design respectively. 2. Further study needed by the second year diploma students 2.1 The needs of diploma students for further study in Home Economics Arts and Commercials program were mostly found in the 18 year-old female ones. 2.2 The needs of diploma students for further study in Home Economics program were in Food and Nutrition-Food Product Development General Home Economics-Art and Craft Business respectively. The needs of diploma students for further study in Commercials program were In Infonnation Technology Industrial Product Design and Clothing and Textiles respectively. The needs of diploma students for further study in Arts program were in Industrial Product Design Clothing and Textiles and Information Teclmology respectively. 3.Further study needed by the upper secondary school students 3.1 The upper secondary school students were mostly the 17 year-old female ones. 3.2 Further study needed at diploma degree by the upper secondary school students was found in Business Computer the most. Food and Nutrition. Industrial Product Design Clothing and Textile Home Economics Administration and Home Economics Communication Arts were found less respectively. Further study needed at bachelor degree by the upper secondary school students in Food and Nutrition Food and Nutrition-Food Product Development Industrial Product Design and Information Technology were found respectively. 4. Business enterprises needs in graduates 4.1 Entrepreneurs were mostly managers in service business enterprises. 4.2 Business enterprises needs in diploma graduates in Food and Nutrition was found the most. Business Computer Clothing and Textile Home Economics Administration and Industrial Product Design were found less respectively. Business enterprises needs annually in Food and Nutrition and Home Economics Administration were found the most. 4.3 Business enterprises needs in bachelor graduates were in Hotel Program Food and Nutrition InfoDl1ation Technology and Food and Nutrition-Food Product Development respectively Business enterprises needs annually in Hotel Program Food and Nutrition and General Home Economics were found the most. 4.4 Desirable characteristics of graduates needed by business enterprises were to be academically expert vocationally expert English literacy specialists and computer literacy respectively. Special characteristics of graduates needed were to be responsible honest friendly creative and leadership respectively.

The Purpose of this research is to investigate employment and unemployment status of Bachelors degree graduates in academic year 2006 in order to gain relevant data for preparing educational plan of Rafamangala University of Technology Phra Nakhon. The population of this study consists of 2791 Bachelors degree graduates in academic year 2006 form 6 faculties : the Faculty of Industrial Education the Faculty of Home Economics Technology the Faculty of Mass Communication Technology the Faculty of Business Administration the Faculty of Engineering and the Faculty of Architecture and Design. The tool used in this study is an Employment Survery for Gradnates in Academic Year 2006. Data was collected both through telephone contact and surver questionnaires collected from graduates on Degree Commencement Practice day.

The purposes of the research were to create computer assisted instruction for Electric Power System Analysis Chapter 1-2 to find out the efficiency validation of computer assisted instruction based on the standard of 90/90 and to analyse the students learning achievement after using the computer assisted instruction. The subjects in the study were 17 third-year diploma engineering students enrolling at Rajamangala University of Technology Phra Nakhon. The researcher made the experiment by having the students pretest. Then they studied by using the computer assisted instruction focused on practicing basic turning. After the students had studied and had posttest the efficiency of the computer assisted instruction was calculated as well as the learning achievement was analysed. The research result revealed that the efficiency of the computer assisted instruction was at the standard of 90 / 90. Moreover the learning achievement after using the computer assisted instruction was different at the significant level of 0.05.

The objectives of the study were to fine the survival probabilities the haazard rates of dropping out of the tecnical diploma level students at Rajamangala University of Technology phra Nakhon North Bangkok Campus and the factors influencing on the university in 2005. The study foud tht the frist semester the survival probabilities of students in all divisions were high ranging from 0.9210 to 1.00 For the second semester the survival probabilities of students in all divisions ranged from 0/7820 to 0.8815 except Industrial Technology which had a maximum value of 0.9295 aned Metal Technology which had aminimum value of 0.6271. For the third and the fourth semester there were 6 division which had survival probabilities ranging from 0.7142 to 0.7971. They were Tool and Die Making Computer technology Eletrical Technology Electronics Auromatic Machine and production design. They 4 were Mechanical Tool Technology Business Computer Mechanical Power and Industrial Technolog. the hazard rates of dropping of students in all divising were low ranging for 0.00 to 0.0822. For the second semester the hazard rates of dropping of students in all divisions ranged from 0.1260 to 0.2458 except Industrial technology which had a minimum value of 0.0730 and Metal Technology which had a miximum value of 0.5221. For the third and the fourth semester the hazard rates of students in all division ranged from 0.1355 to 0.2962 excepy metal Technology which had the maximum value of 0.5932 and Tool and Die Making which had the value of 0.3364. The factors influencing on hazard rates of students drpout were place of previous school region of previos school and grade point average of previons school. The hazard rate of dropping of students graduation from school in the central region (not including Bankok Metropolitan Area) was 43% (0.562 times) less than the hazard rate of dropping of students graduation from schools in Bangkok metropolitan area. The hazard rate of dropping of students having grade aveage of 3.10-3.50 and 3.51-4.00 from previous school was 43.1% (0.569 times) and 63.7% (0.377 times) less than the hazard rate of students having grade point average of 2.00-2.50 respectively.