Bus Duct Systems: Key Advantages Over Cable

A busduct is an electrical system component that serves as a connection between two or more electrical devices, facilitating the efficient and dependable transmission of power without interrupting the operation of the equipment. This electrical equipment design takes current and voltage requirements, short circuit requirements, available space requirements, and aesthetic factors into account.

There are three main categories of air-insulated busducts: isolated phase busduct, segregated phase busduct, and non-segregated phase busduct. In conclusion, isolated phase busducts are commonly employed in large-scale power installations to connect generators with transformers and additional equipment. Each phase conductor is housed in its own enclosure, allowing it to sustain a higher current for a given busduct when compared to other types of busducts.

In Segregated Phase Busducts (SPBD), which are essentially metal-enclosed systems, all phase conductors are housed in a common enclosure but are separated by barriers. Metallic and insulating materials are both accessible for these barriers. Non-magnetic barriers possess the capacity to substantially reduce the stresses caused by phase-to-phase defects.

The three-phase conductors are housed in a single metallic enclosure in a non-segregated phase busduct, also referred to as an NSPBD, without phase barriers separating the adjacent phases. A variety of NSPBDs are available, with the most prevalent being the traditional and interleaved versions.

Until recently, cables served as the primary means of transmitting electrical power from one piece of equipment to another. In any event, this approach exhibited significant efficacy when the required power was comparatively modest.

Conversely, within a context characterized by continuous advancement, the dimensions and functionalities of numerous pieces of equipment have notably expanded. Cable was not a feasible option for transmitting such substantial quantities of power due to its intrinsic limitations and drawbacks. Power transmission and distribution issues necessitate the consideration of alternative solutions, which will ultimately lead to the development of more modern transportation technologies, such as busducts. Ultimately, it facilitated the resolution of numerous issues pertaining to cable utilization.

You may seek guidance regarding the parameters pertinent to the selection of the busduct. The voltage rating, BIL value, continuous current capacity, short-circuit current rating, ambient temperature, temperature rise limitations, and busbar material are among the essential parameters evaluated during the initial selection of busduct.

The parameters outlined above are, of course, the most critical; however, the design of the busduct is also affected by a broad spectrum of additional factors. In this context, it is recommended that you make it your personal responsibility to conduct further research and acquire additional knowledge regarding the busduct.