SEL TD32 Directional Algorithm from SELT401L in Simulink

Citation Author(s):
Julio
Rodriguez
Reza
Hamidi
Submitted by:
Julio Rodriguez
Last updated:
Wed, 12/21/2022 - 15:18
DOI:
10.21227/cgve-c054
Data Format:
*.slx
License:
Creative Commons Attribution
193 Views
Categories:
Power and Energy
Keywords:
Algorithm, Directional relays, Protection relays
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Abstract 

Implementation of the time-domain directional TD32 introduced by SEL in Matlab/Simulink based on the user manual of SEL T401L for the researchers who need to simulate this relay. 

Instructions: 

The input parameters necessary for the correct performance of the digital relay are the positive and zero sequence impedances of the transmission line, the forward and reverse thresholds (TD32ZF and TD32ZR), and the secondary voltage and currents from the PT and CT respectively. The positive and zero sequence impedances information are usually available for the user, the negative and zero sequence impedances angles are necessary to be in degrees.

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