Line Rate

Perform bare overhead conductor rating calculations.

Calculate steady-state and transient line ratings for overhead conductors. Current-temperature relationship in bare overhead conductors of any type. Conductors database. Easy to use.

Calculations:

Calculation Modes:

1. Steady-state conductor temperature.
2. Steady-state thermal rating.
3. Transient conductor temperature.
4. Transient thermal rating including short-circuit conditions.

Conductors:

• Any bare conductor type (i.e. AAC, AAAC, ACSR, HDCU, SCGZ, SCAC, etc.).
• Aluminium, Copper, Steel, Aluminium clad steel materials.
• Steel core conductors or homogeneous.
• Large conductor database included.
• Custom conductors. Model new or obsolete conductors to any world-wide standard
• In addition:
  • Surface emissivity and solar absorption coefficients
  • Radial temperature gradient within conductor

Environmental Conditions:

• Wide range of environmental conditions can be altered:
  • Ambient temperature.
  • Wind velocity.
  • Wind direction.
  • Conductor elevation.
  • Solar radiation intensity (see below under other modules)

Other Mobules Included:

Solar radiation level with latitude and time of year

• Calculate maximum expected solar radiation intensity (W/m2) based on location.

Features and Benefits:

• Fully complies with:
  • IEEE Std 738 – Calculating the Current-Temperature Relationship of Bare Overhead Conductors
  • Accurate iterative calculation methods.
• Steady-state and transient calculations.
• Compare an unlimited number of varying conditions.
• Suitable for any type of conductor.
• Graphical and intuitive display.
• Save results to file and Print comprehensive reports.
• Print reports directly to PDF.
• Calculation checks and warning system.