OPTIMIZING THE ASPECT RATIO OF RECTANGULAR ALUMINUM BUSBAR CROSS-SECTION IN INDUSTRIAL FREQUENCY BUSBAR LINES
Keywords:
: busbar, surface currents, power losses, ohmic losses, geometric parameters, analytical modeling, numerical modeling, CAE systemsAbstract
This article examines the reduction of ohmic losses in power transmission systems with rectangular aluminum busbars carrying 50 Hz industrial frequency currents. The choice of a finite element analysis (FEA) system for the study is justified. The influence of busbar and busbar design parameters on energy loss is assessed. These parameters include the aspect ratio of the busbar cross-section and the distance between the busbars. Finally, recommendations are provided for busbar system designers on reducing energy losses. Reducing losses in power transmission lines has always been and remains a pressing issue. Busbar ducts are increasingly being used as power transmission lines. Busbar ducts of various designs have been used at power supply facilities since the 1950s. They have proven their reliability, ease of installation, operation, and repair, as well as ease of maintenance. Therefore, busbars are currently being implemented in many power supply projects, particularly those involving trunk and distribution networks.
Trunk busbars are used with alternating current to connect a transformer to the main switchboard, or to the input switchgear, or in a transformer-trunk unit. With direct current, they are used to construct electrical networks in industrial DC installations with voltages up to 1200 V.
Distribution busbars are used to construct trunk lines with a large number of connections for various consumers, as well as to supply power to lighting busbars.
Trolley busbars are used to supply power to workshop loads of rolling stock, such as cranes (overhead, overhead), hoists, lifts, etc.
