Abstract
This paper presents a new technique to prevent the false distance relay tripping during voltage instability and voltage collapse by integrating the adaptive setting of zone 3 distance relay, rate of change of voltage (dV/dt) and voltage stability index (VSI). The existing dV dt approach is not able to differentiate between a fault and near voltage collapse condition and may initiate the false tripping signal. Therefore, a rigorous indicator, VSI is proposed as an additional relay feature to prevent such signals to be initiated. The performance of proposed technique is evaluated by comparing it with the dv/dt and the combination of dv/dt with system status indicator (SSI).
Original language | English |
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Pages (from-to) | 1209-1217 |
Number of pages | 9 |
Journal | International Review of Electrical Engineering |
Volume | 5 |
Issue number | 3 |
Publication status | Published - 2010 |
Externally published | Yes |
Keywords
- Adaptive setting
- Distance relay
- Fault
- Voltage collapse
ASJC Scopus subject areas
- Electrical and Electronic Engineering