DESIGN AND IMPLEMENTATION OF AN AUTO-TEMP CONTROL SYSTEM FOR DISTRIBUTION TRANSFORMER

J C Orjiewulu,A Ibrahim,D C Chukwuemeka,C E Jesusblessing

doi:10.52417/ojes.v1i2.142

Abstract

Unreliability and interruptions facing power supply are evidence of the excessive heat generated in power systems, as a result of the inefficiency of oil cooling medium employed in distribution transformers. The design and implementation of a prototype automatic temperature control system is to be employed as a method towards solving the above stated problem of excessive temperature rise in distribution transformers. The prototype design consists of a PIC microcontroller programmed in C language, an LM35 temperature sensor, an electric fan and other diverse electronic component. It operates a mechanism that detects temperature rise in the transformer and automatically turns on the cooling fan at extreme temperature conditions. A 16x2 LCD is employed as the medium for temperature display unit of the transformer. The resulting prototype functions in a way that it has the ability to detect every 1ºC rise and reduction in the temperature of the transformer. Thus, at extreme temperature conditions, the automatic temperature control system diminishes the excessive heat generated in the transformer to the appropriate working temperature condition. Orjiewulu, J. C. | Department of Electrical Electronics Engineering, University of Benin, Benin City, Edo State, Nigeria.

Highlights

A transformer can be referred to as a power transmission device system that basically converts one voltage level into another voltage level without altering the frequency of the system
The increase in the rating and capacity of a transformer directly results to an increase in its generated heat
Due to its manual operation characteristic, it is faced with the disadvantage and challenge of not recognizing over heating (Bharathidasan, et al, 2019)

Summary

Introduction

A transformer can be referred to as a power transmission device system that basically converts one voltage level into another voltage level without altering the frequency of the system. During this conversion process, losses occur in the core and windings of the said system. Losses occur in the core and windings of the said system These losses are generally termed heat losses. The increase in the rating and capacity of a transformer directly results to an increase in its generated heat. There are different mediums of cooling system conversant with this power system device, they basically include: air, water, oil mediums of cooling systems. Due to its manual operation characteristic, it is faced with the disadvantage and challenge of not recognizing over heating (Bharathidasan, et al, 2019)

Methods

Results

Conclusion