Effect of three-winding transformer models on the analysis and protection of mine power systems
- Pennsylvania State Univ., University Park, PA (United States). Dept. of Mineral Engineering
Computer-aided loadflow and fault analyses of mine power systems are routinely conducted to ascertain system performance and also to provide information to assist in the protection and coordination of these systems. Three-winding transformers are frequently encountered in mining applications, typically at continuous miner and longwall sections where there exists a need for dual utilization voltages. These transformers are often modeled as a three-bus system neglecting the secondary to tertiary winding impedance and the effect of base changes. This paper analyzes the impact of more accurate transformer models on voltages and fault currents which are realized from loadflow and fault studies of mine power systems.
- OSTI ID:
- 354280
- Journal Information:
- IEEE Transactions on Industry Applications, Vol. 35, Issue 3; Other Information: DN: Paper presented at the 1993 Industry Applications Society annual meeting, October 2--8, Toronto, Ontario (CA); PBD: May-Jun 1999
- Country of Publication:
- United States
- Language:
- English
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