POLYENERGY utilizes ETAP software for the Overhead Line Sizing calculations.
ETAP Transmission Line analysis modules calculate electrical parameters, conductor ampacity-temperature relationship, and sag/tension-temperature relationship of overhead transmission lines.
Capabilities
1. Line Constants
- Conductor & ground wire libraries
- Built-in configurations: horizontal, vertical, etc.
- General configuration: X, Y, & Z coordinates
- Multi-line mutual coupling
- Phase & sequence impedance matrix
- Transposed & un-transposed lines
- Short & long line models
- Multiple layer soil model
- Calculated or user-defined impedances
2. Contingency Analysis
- N-1 & N-2 contingency assessment & ranking
- Fast screening method to scan outage list
- Multiple graphical outage lists
- Automatic performance indices calculation
- Summary report analyzer
3. Line Ampacity
- Conductor ampacity vs. temperature
- IEEE 738 Standard
- Determine maximum operating temperature for various loading conditions
- Deratedampacity based on temperature limit
- Consider weather, solar heat, & geographical location
4. Sag & Tension
- Sag / tension vs. temperature
- Multiple spans between dead-end structures
- Level spans of unequal length
- Solve spans of unequal length on different horizontal planes
- Include effects of wind, temperature, & k factorHVDC Transmission Link
- Detailed rectifier & converter modeling
- Composite AC / DC & DC / AC systems
- Built-in control schemes
- Inclusive transformer model
- Automatic harmonic spectrum calculation
- Easy-to-use integrated model
For more information on our ETAP software capabilities, pls log in and download the
