REMOTE MONITORING OF INCIPIENT FAULTS USING GPRS IN POWER TRANSFORMERS |
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| Marco A. M. Cavaco, Mauro Eduardo Benedet, César A. A. Nogueira, Régis H. Coelho |
- Abstract:
- One of the most applied procedures for detention of incipient faults in power transformers, such as partial discharges, electrical arcing and overheating, is the analysis of the concentration of gases dissolved in the isolating mineral oil. This analysis usually is carried through in a laboratory through chromatography in gaseous phase. Although it presents trustworthy results the chromatography brings some inconveniences as the need of a periodic sampling along with the distance from the laboratory to the substation of electric energy. There are some measurement systems available with the capacity to carry through this analysis in the field. However these devices are costly, not justifying its use in a dedicated form in low cost power transformers. In such a way, a project for the monitoring of multiples transformers was initiated using only one measurement system. One of the most important features of the developed equipment is its capability to remote control and monitor. Thus, an Internet procedure based in GPRS (General Packet Radio Service) technology was developed. The use of the GPRS for remote communication made possible the development of an equipment more independent, capable to transmit and receive commands from different substation of electric energy.
- Keywords:
- gas dissolved in oil, GPRS, power transformer
- Download:
- IMEKO-WC-2009-TC10-655.pdf
- DOI:
- -
- Event details
- Event name:
- XIX IMEKO World Congress
- Title:
Fundamental and Applied Metrology
- Place:
- Lisbon, PORTUGAL
- Time:
- 06 September 2009 - 11 September 2009