Effective Load Sharing of Distribution Transformers With Safety Cut-Off Using Gsm Technology
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 6
Abstract
The aim of the project is to detect the various faults on the transformer under overload condition by load sharing. Due to overload on transformer, the efficiency drops and windings get overheated and may get burnt. Thus by sharing load on transformer, the transformer is protected. This will be done by connecting another transformer in parallel through a microcontroller. The micro controller compares the load on the first transformer with a reference value. When the load exceeds the reference value, the second transformer will share the extra load. Therefore, the two transformers work efficiently and damage is prevented. In this project three modules are used to control the load currents. The first module is a sensing unit, which is used to sense the current of the load and the second module is a control unit. The last module is micro-controller unit and it will read the analogue signal and perform some calculation and finally gives control signal to a relay. A GSM modem is also used to inform the control room about switching. The advantages of the project are transformer fault detection, uninterrupted power supply, and short circuit protection. Depending upon the sensing action immediate actions are taken to avoid damage to transformers. The signal is sent to control room and here we are using a GSM technique interfaced with 8051 controller. When the power is cut due to faults in transformer-1 then load sharing is done, Thus from the control room they send the signal to microcontroller to switch for transformer-2 for time being unless the transformer-1 is ready.
Authors and Affiliations
Abhishek H D, Vinayaka S, Vani H V, Prashanth Kumar H K, Sudha T
Keywords
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