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Paper Title: Reduction of transient inrush current in transformer using ‘Point on Wave Switching ‘method
Authors Name: Dilraj Abhimanyu Dhotre , Vijay Ramesh Belhekar , Gaurav R. Rajguru , Prof. P. P. Kulkarni
Unique Id: IJSDR1705078
Published In: Volume 2 Issue 5, May-2017
Abstract: This paper introduces a methodology to investigate Point on wave switching to reduce magnetizing inrush in Transformer. When transformer is switched into a service, transformer will get energized and transformer primary draws high current. This mentioned current is ‘transient inrush current’ and it may raise two to ten times the nominal rated current of transformer during operation. The method of using point on wave switching consists in energizing transformer at proper instant on voltage waveform judiciously chosen to prevent generation of high magnitude inrush current. Though transient inrush current lasts within few cycles, it has some adverse effects like problems in intended operations of protective devices, production of mechanical stress to the transformer core, power system quality issues and disruption in operation of sensitive electrical loads such as computers and medical equipment connected to the system. Hence Control and mitigation of transient inrush currents has become one of the concerns to power industry. One of the methods to reduce inrush current i.e. Point On Wave Switching method is investigated in this paper; an investigation is simulation based and design of an electronic switching controller to mitigate the transient inrush current of a power transformer. For switching power to the transformer, firing angle of Triac which acts as a switch is controlled using microcontroller. MATLAB/SIMULINK R2013a based simulation as well as experimental results are discussed to support the developed concept i.e. Point on wave switching method. Finally, the proposed concept is validated.
Keywords: Transformer inrush currents; Point on wave switching; Triac.
Cite Article: "Reduction of transient inrush current in transformer using ‘Point on Wave Switching ‘method", International Journal of Science & Engineering Development Research (www.ijsdr.org), ISSN:2455-2631, Vol.2, Issue 5, page no.433 - 436, May-2017, Available :http://www.ijsdr.org/papers/IJSDR1705078.pdf
Downloads: 000102098
Publication Details: Published Paper ID: IJSDR1705078
Registration ID:170411
Published In: Volume 2 Issue 5, May-2017
DOI (Digital Object Identifier):
Page No: 433 - 436
Publisher: IJSDR | www.ijsdr.org
ISSN Number: 2455-2631

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