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Cable Ampacity Software has following capabilities:

Cable Ampacity Calculation

Cable Ampacity Software is designed to simulate the thermal behavior of power cable installations. The original version of this package was developed jointly by Ontario Hydro (Hydro One), McMaster University , under the auspices of the Canadian Electricity Association.

PROGRAM FEATURES

Cable Ampacity Software is dedicated to performing ampacity and temperature rise calculations for power cable installations.

Determining the maximum current power cables can sustain without deterioration of any of their electrical properties is important to the design of electrical installations.

The accuracy of Cable Ampacity Software  provides increased confidence when upgrading existing power cable installations and designing new ones, thus maximizing the benefits from the considerable capital investment associated with them.

Cable Ampacity Software optional additional modules :
Multiple Duct Banks
Duct Bank Optimizer
Short Circuit Cable Rating
Cables in Tunnels
Magnetic Fields
Multiple Casings
Cable Impedance Calculation
Cable Crossing
Real Time Temperature Rating
Cable Historical Operating Temperature Estimator
Cable Ampacity Software Additional Modules are as following:

Installations
Cable Ampacity Software Additional Modules offer extended capabilities to Software , allowing modeling more installations, particularly non-standard installations. This includes the modeling of ductbanks, backfills or soil layers with different thermal resistivities each; the calculation of the ampacity and temperature of cables in unventilated tunnels; the rating of cables in both filled and unfilled troughs; and the rating of cables in one or more non-magnetic casings.

  • Multiple Duct Banks
  • Cables in Tunnels
  • Cables in Troughs
  • Multiple Casings
Analyses
Cable Ampacity Software Additional Modules allows performing several analyses of interest for cables installations other than thermal analysis. With those modules, the user can evaluate the magnetic flux density at any point on or above the ground of an underground cable installation, determine the positive and zero sequence impedances and admittances for all the cables present in an installation, perform short-circuit cable ratings; determine the optimal placement of several circuits within a ductbank given specified constraints; and calculate of the ampacity of two circuits crossing each other.

  • Duct Bank Optimizer
  • Magnetic Fields
  • Cable Impedance Calculation
  • Short Circuit Cable Rating
  • Cable Crossing

 

Analytical Capabilities

  • Iterative techniques based on Neher-McGrath and IEC-60287 methods.
  • Full compliance with North American practice and support all pertinent IEC standards IEC 60287, IEC 60228, IEC 601042, IEC 60853, etc.
  • A detailed graphical representation of virtually any type of power cable. This facility can be used to modify existing cables and enrich the cable library with new ones. This includes single-core, three-core, belted, pipe-type, submarine, sheathed, and armored cables.
  • Different cable installation conditions such as directly buried, thermal backfill, underground ducts or duct banks.
  • Cables in pipes with the pipe directly buried or in a thermal backfill.
  • Independent libraries and data bases for cables, duct-banks, load curves, heat sources and installations.
  • Simulation of cables in air on riser poles, groups of cables in air, moisture migration, nearby Heat sources and Heat sinks, etc.
  • Different cable types within one installation.
  • Non-isothermal earth surface modeling.
  • Cyclic loading patterns as per IEC-60853.
  • Multiple cables per phase with proper modeling of the sheath mutual inductances which greatly influence circulating current losses and thus de-rating.
  • All bonding arrangements for flat and triangular formations are supported with explicit modeling of minor section lengths, unequal cable spacing, etc

Transient Analysis

The program supports a Transient Thermal Analysis Option which includes the following:
  • Ampacity given time and temperature.
  • Temperature analysis given time and ampacity.
  • Time to reach a given temperature, given the ampacity.
  • Ampacity and temperature analysis as a function of time.
  • User-defined load profiles per circuit.
  • Multiple cables per installation.
  • Circuits can be loaded simultaneously or one at a time.
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