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Busbars vs. energy chains for crane electrification

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tech talk Learn more at www.igus.com/info/energychains for crane electrification The performance of a crane is directly dependent on its electrification system. With various power supply options available and a range of application requirements to take into consideration, making a selection on which type of system to implement can be difficult. It is essential to consider the benefits and disadvantages of prospective energy supply systems before deciding which is best. Busbars vs. energy chains Busbars One power system that is frequently offered for overhead cranes is an open or insulated busbar. These horizontal metal conductors are found to be a standard in many industries. They can be used in indoor or outdoor cranes, as well as on runways with more than one bridge operating on them. Most busbars are comprised of seven main components. The system supplies power along the runway or bridge of a crane through steel or copper conductor bars. A collector arm slides along the conductor bar, allowing current to pass from the electrified conductor bar to the moving collector and on to the moving hoist or other travelling element. The conductor bars are typically hung from insulated hangers. The hangers are attached to a mounting bracket that is either attached to the wall, crane or machine structure. An end cover provides protection at the end of the conductor bar, and anchor clamps and expansion joints are used to manage thermal expansion and contraction.

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