Study on New Smart Transformer Terminal Unit Based on ARM and GPRS Network
Journal Title: Elektronika - Year 2013, Vol 17, Issue 2
Abstract
Distribution transformer is one of the most important power equipments in distribution network, whose running state exercises a great influence on the stability of the network. Transformer Terminal Unit (TTU) is an effective device to monitor the running state of transformers in the distribution automation system. In this paper, we study a new smart TTU which uses ARM7 series chip as processor, equipped with ATT7022B based electric meter module and GPRS module for remote data transmission control. We focus on the corresponding hardware, software design and the measurement principle of harmonics of TTU. The new TTU can measure the electric parameters of the distribution transformer precisely. Taking advantage of the powerful ARM processor, it can analyze harmonic of the power line effectively. Due to the always-on-line feature of GPRS, TTU can achieve reliable communication with the remote terminal and the master station. Compared with other similar units, the new unit outperforms in terms of real-time, precision and reliability, which can fully meet with the high-speed development of distribution automation system.
Authors and Affiliations
Na Wu, Yinjing Guo, Yongqin Wei, Aying Wei
Keywords
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- EP ID EP136512
- DOI 10.7251/ELS1317144W
- Views 99
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