| ETAP Transmission and Distribution Line Design and Analysis Program calculates conductor electrical parameters, sag and tension-temperature characteristics, conductor ampacity-temperature characteristics and ampacity derating-temperature characteristics of overhead transmission and distribution lines. In this module for the transmission circuit studies, a comprehensive model of mutual coupling effect between different line circuits is employed to allow accurate modeling of the system. A user-friendly graphical interface displays the layout of circuits and ground wires for transmission tower and overhead lines. It is an easy to use tool for sizing transmission and distribution lines, designing new transmission and distribution circuits, and verifying the parameters of existing overhead lines. |
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| Transmission & Distribution Line Analysis Software Key Features |
- Graphical user interface
- User-friendly input & output
- Flexible data entry for the overhead line physical or electrical (impedance) parameters
- One or multiple circuits for (single, two or three-phase lines), with transposed or untransposed configuration
- One or multiple ground wires, with both segmented & unsegmented arrangements
- Predefined and selectable typical transmission line layouts
- User-defined general line layout
- Multi-layer earth models
- Modeling of mutual coupling effect between different line circuits
- Including tower ground resistance
- User-definable conductor and ground wire data
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| Transmission & Distribution Line Analysis Software Calculations |
- Automatic calculates overhead line impedance based on physical parameters
- Calculated sag, tension, ampacity-temperature & ampacity-temperature derating characteristics
- Performs sag and tension vs. temperature analysis
- Performs sag and tension analysis for towers with same or different
- height
- Performs line conductor ampacity vs. temperature analysis
- Displays overhead line parameters in either phase or sequence domain
- Provides an integrated tool to size existing overhead lines or design new lines
- Provides physical to electrical (impedance) parameters calculation
- Can be integrated with all system studies
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| Transmission & Distribution Line Analysis Software Reporting |
- Series circuit impedance matrices in the phase domain
- Series circuit impedance matrices in the sequence domain
- Shunt circuit susceptance matrices in the phase domain
- Shunt circuit susceptance matrices in the sequence domain
- Sag and tension vs. temperature characteristics
- Conductor ampacity vs. temperature characteristics
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