sequence network

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Open Circuit Faults

Majority of text books disregard open circuits when presenting unbalance faults in a power system. Almost always, only short-circuit faults are considered. In the following circuit diagrams, it is assumed that the lines were opened…


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Application – Fault Sequence Network Connection

In my previous article, I have provided the different formula for calculating fault currents in different fault scenarios. We will put that into application at this time. A utility have given these values to our…


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Fault Sequence Network Connections

Calculating three-phase faults is very straight forward. Unbalance faults, however, has a little bit of challenge in it as it reuqires some imaginations to be understood. To provide better understanding on this types of faults,…


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