Webinar - Accurate High Voltage Cable Rating Calculations
In this webinar, our technical director, Jayson Patrick, explains in detail and demonstrates with examples how to accurately perform HV cable rating calculations to IEC 60287. He will show you how to model power cables from manufacturer datasheets.
He will explain the changes and differences between IEC 60287 and the guidance points provided in the new CIGRE TB 880 (2022). He will also demonstrate the improved 3-core armour loss calculations in the new CIGRE TB 908 (2023).
▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬
0:00 - Introduction and Webinar Agenda
1:14 - ELEK Cable HV Software
2:06 - IEC 60287 Standard
4:06 - Equivalent Thermal Circuit
6:34 - CIGRE Technical Brochure 880 (2022)
9:23 - CIGRE Technical Brochure 908 (2023)
11:24 - Cable Modelling, including HVDC
28:56 - Electrical Losses in Power Cables
34:26 - Lay Length of Wires and Cores
35:37 - Dielectric Losses and 400 kV Cable Examples
38:04 - Sheath and Screen Loss Factor
39:47 - Sheath Circulating Current for Solid Bonding Example
41:13 - Armour Loss Factor
43:51 - Armour Loss in Three-core Submarine Cable Example
44:26 - Thermal Resistances T1, T2, and T3
45:23 - External Thermal Resistance T4
47:56 - Multiple Circuits Calculations (Mutual Heating)
51:07 - Live Software Demonstration
The software being used for the calculations is ELEK Cable HV:
https://elek.com/electrical-software/...
ELEK Cable HV is accurate and validated software for cable current rating calculations.
Suitable for any AC voltage and HVDC cables. Complies with the IEC 60287 standards, the main authority for cable rating calculations. Performs current rating calculations for custom cables under specific installation conditions.