DocumentCode :
1683185
Title :
Impact of energization of large power transformer from weak source through ICT
Author :
Bandyopadhyay, Pratik ; Begum, Anisa
Author_Institution :
L&T-Sargent & Lundy Ltd., Vadodara, India
fYear :
2013
Firstpage :
1
Lastpage :
6
Abstract :
This paper presents the impact of charging the large power transformer through a relatively weak source or grid via Interconnecting Transformer (ICT). The Generator transformer (GT) of power generating station needs to be back charged from the supply grid. Often, the permanent grid supply is not available to charge the GT at the time of commissioning and there is a practice to temporarily connect lower voltage grid through ICT. The purpose of this study is to evaluate the impact of GT charging on power system network and on ICTs and provide guidelines for proper selection of ICTs. Simulation is done on PSCAD and results are verified with recorded results observed at site during actual charging of GT.
Keywords :
power grids; power transformers; ICT; PSCAD; generator transformer; interconnecting transformer; large power transformer; permanent grid supply; power generating station; power system network; supply grid; weak source; Circuit faults; Harmonic analysis; PSCAD; Power transformers; Relays; Simulation; Surges; GT; ICT; charging; energization; power transformer; source impedance; weak source;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering (NUiCONE), 2013 Nirma University International Conference on
Conference_Location :
Ahmedabad
Print_ISBN :
978-1-4799-0726-7
Type :
conf
DOI :
10.1109/NUiCONE.2013.6780163
Filename :
6780163
Link To Document :
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