Performance Evaluation of an Enhanced Bus Differential Protection Relay

2019 ◽  
Author(s):  
Nuwan Perera ◽  
K Ponram
Keyword(s):  
Performance Evaluation ◽  
Differential Protection ◽  
Protection Relay

scholarly journals Performance Evaluation of a Generator Differential Protection Function for a Numerical Relay

2019 ◽  
Vol 9 (4) ◽  
pp. 4342-4348
Author(s):  
K. H. Le ◽  
P. H. Vu
Keyword(s):  
Performance Evaluation ◽  
System Design ◽  
Protection System ◽  
Hydropower Plant ◽  
Differential Protection ◽  
Relay System ◽  
Protection Relay ◽  
Advantages And Disadvantages ◽  
Numerical Relay

This paper describes the advantages and disadvantages of a generator differential protection relay system which uses double slope characteristics of Areva P343, ABB REG670, SEL300G and GE G60. A Buon Tua Srah Hydropower Plant in Vietnam was selected as an example for the relay setting calculations of these characteristics. The performance of the introduced relay model was tested at various fault conditions in Matlab/Simulink. The results apply to the problems of solving the performance of the relay accurately and with reliable differential protection against internal faults, and keeping the generator stable on all external faults and in normal conditions. The simulation simplifies the process of selecting the relay and protection system. This can improve the quality of the protection system design early, thereby reducing the number of errors found later in the operation.

scholarly journals Performance evaluation of the travelling wave-based differential protection when applied on Hybrid Transmission Lines

2018 ◽  
Vol 2018 (15) ◽  
pp. 1114-1119 ◽  
Author(s):  
Felipe V. Lopes ◽  
Caio M.S. Ribeiro ◽  
João Paulo G. Ribeiro ◽  
Eduardo Jorge S. Leite
Keyword(s):  
Performance Evaluation ◽  
Transmission Lines ◽  
Travelling Wave ◽  
Differential Protection ◽  
Hybrid Transmission

Maintenance testing of numerical differential protection relay

2015 ◽  
Vol 7 (S1) ◽  
pp. 274-281 ◽  
Author(s):  
Mohamed Bouchahdane ◽  
Nassim Soltani ◽  
Farouk Lamraoui
Keyword(s):  
Differential Protection ◽  
Protection Relay

scholarly journals Evaluation of Cross-Differential Protection Applied to Double-Circuit Transmission Lines Under Inter-Circuit Faults

2020 ◽  
Author(s):  
Vitor R. Serpa ◽  
Tiago R. Honorato ◽  
Kleber M. Silva
Keyword(s):  
Performance Evaluation ◽  
Transmission Line ◽  
Transmission Lines ◽  
Transient Analysis ◽  
Differential Protection ◽  
The Cross ◽  
Do So

This paper deals with the performance evaluation of cross-differential protection applied to double-circuit transmission lines which share the same tower, considering the occurrence of inter-circuit faults. Aiming to do so, sensitivity and transient analysis were carried out on a 300 km double-circuit transmission line with 500 kV of rating voltage, modeled on Alternative Transients Program (ATP). By the analysis of the obtained results, the cross-differential protection function is able to detect faults between two different phases of the two existent circuits and has a high instantaneous coverage for such type of fault.

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