Analysis of temperature changes on three-phase synchronous generator using infrared: comparison between balanced and unbalanced load

TALENTA - Conference on Engineering, Science and Technology 2017

工业技术;自然科学

Amien, S.^1 ; Yoga, W.^1 ; Fahmi, F.^1,2

Department of Electrical Engineering, Faculty of Engineering, University of Sumatera Utara, Jl. Dr. Mansur 9, Medan

20155, Indonesia^1

Sustainable Energy and Biomaterial Centre of Excellent, University of Sumatera Utara, Jl. Almamater Kampus USU, Medan

20155, Indonesia^2

关键词: Comparison result;    Electrical energy;    Generating system;    Highest temperature;    Infrared thermometers;    Load distributions;    Resistance calculation;    Temperature changes;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/309/1/012036/pdf
DOI  :  10.1088/1757-899X/309/1/012036

来源: IOP

【 摘 要 】

Synchronous generators are a major tool in an electrical energy generating systems, the load supplied by the generator is unbalanced. This paper discusses the effect of synchronous generator temperature on the condition of balanced load and unbalanced load, which will then be compared with the measurement result of both states of the generator. Unbalanced loads can be caused by various asymmetric disturbances in the power system and the failure of load forecasting studies so that the load distribution in each phase is not the same and causing the excessive heat of the generator. The method used in data collection was by using an infrared thermometer and resistance calculation method. The temperature comparison result between the resistive, inductive and capacitive loads in the highest temperature balance occured when the generator is loaded with a resistive load, where T = 31.9 ° C and t = 65 minutes. While in a state of unbalanced load the highest temperature occured when the generator is loaded with a capacitive load, where T = 40.1 ° C and t = 60 minutes. By understanding this behavior, we can maintain the generator for longer operation life.