| Autor: |
Nikolovski, Srete, Provči, Igor, Šljivac, Damir |
| Přispěvatelé: |
A. Borghetti, C.A. Nucci, M. Paolone |
| Jazyk: |
angličtina |
| Rok vydání: |
2003 |
| Předmět: |
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| Popis: |
In this paper, the analysis of digital protection relays setting in a MV transformer station grounded via a low-ohmic resistor is presented. Theoretical background on low-ohmic resistor grounding in a transformer station is provided. EasyPower PowerProtector software is used for simulation and relay settings. Protective relay coordination after the simulation of a 3-phase fault and a line-to-ground fault on different selected buses in transformer station 35/10 kV is performed. Digital ABB relays series REF 541 were used for low-ohmic resistor thermal, short-circuit and overcurrent protection and overload protection of the low voltage transformer side. The results of analysis indicate correct selectivity of overcurrent protection devices in all cases |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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