Thailand Electrical Engineering Journal (TEEJ)

Assessment Electric Reliability and Quality in Distribution System of Provincial Electricity Authority A Case Study of 115 KV Distribution System for Suranaree University of Technology

สมชาย บรรณมาส, อุเทน ลีตน — Wed, 10 Dec 2025 00:00:00 +0700

This paper illustrates stability and quality of electric distribution system were assessed based on PEA standard. The case study is 115 kV distribution system of Suranaree University of Technology is applied. The system conducted a patrol of 115 kV is main transmission lines and 22 kV is backup circuits. The statistics data were compared with SAIFI and SAIDI to confirm reliability and quality standards. The instruments equipment is instated at 115 kV power stations in order to assessed analysis power quality. The result, power quality is pass the service quality standard, as well as proposing strategies to improve the distribution system for urgent, medium and long term periods in order to ensure the highest stability of the distribution line.

Prediction of Cleaning the Solar Rooftop by Regression Equation

บุญญฤทธิ วังงอน, กิตติศักดิ์ คงศรีไพร, สมพร เรืองสินชัยวานิช — Wed, 10 Dec 2025 00:00:00 +0700

This paper presents prediction of cleaning the solar rooftop by regression equation. Since solar rooftop system is typically located on top of building, dirt and bird droppings are issued for reducing solar rooftop's efficiency for transforming solar energy to electrical energy. Furthermore, the plan of clearing is essential, because some buildings are difficult to enter for service in particular on top of building. This prediction is applied with two independent parameters which are an electrical power and solar radiation. Then the predicted of an electrical power is compared with the actual electrical power according to weekly before and after clearing with similar weather condition. For this result report, there is not 10 percent of their error.

Prototype Simulation Wildfire Alarm System via Line Application: A Case Study Nakhon Phanom Airport Zone

เศรษฐศักดิ ขวัญเพชร, ธราธิป ภู่ระหงษ์ — Wed, 10 Dec 2025 00:00:00 +0700

This research aims to apply prototype simulation wildfire alarm system via Line application: a case study Nakhon Phanom Airport zone. The application sends message (Line notification) to officers for preventing wildfire expanded and could not control. It is wireless communication device composing of microcontroller Node MCU with infrared sensor (IR flame) for flame detection. The results found that 1) length of flame detection (candle flame) of infrared IR flame in 1 way was 17 cm which is 100% accuracy 2) length of flame detection (candle flame) of infrared IR flame in 2 ways was 40 cm which is 100% accuracy. Therefore, four Infrared IR Flame 2 ways were selected for placing in 4 direction, north, south, east and west. The detection system results showed that it could detect fire in 4 directions accurately.