Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Power and Energy
Differential Transformer Protection Using The Sel 387 And Sel 587 Microprocessor Relays, Ryan Chun
Differential Transformer Protection Using The Sel 387 And Sel 587 Microprocessor Relays, Ryan Chun
Electrical Engineering
The objective of this Senior Project is to use the SEL 387 current differential and overcurrent microprocessor relays to protect three-single-phase 1 KVA 120:208 transformers configured in ∆-∆, Y-Y, Y-∆, and ∆-Y connections. In the second phase of this project, is to create a functioning lab that uses the SEL 587 relay to teach basic differential transformer protection for the upcoming EE-444 students.
The protection schemes developed in both of the senior project phases require the use of differential and overcurrent protection elements by monitoring the changes of the input and output current through the transformer. When these currents fail …