To solve this, engineers bolt multiple thinner busbars together in a parallel configuration, leaving a distinct air gap between each bar (typically equal to the thickness of one bar). HIGH POWER DENSITY: With the increasing demand for higher power in electric vehicles, busbars with high power density need to handle a larger current flow in a smaller cross-sectional area, thereby also reducing the size and weight of the components. The quickest and most common method of protective device sizing is using the power dissipative RMS current to size the busbar. As part of my research, I'm doing calculations on a hypothetical high-current (4000 A) medium-voltage (5000 V) DC power transmission system using two parallel busbars. Is it correct to put two busbar of same phase without spacing? I know that when we connect two busbars it must be connected with appropriate number of bolts (depending on busbar size) so I just wondering is this correct or there should be some space between them? Pretty much he who designs it picks. Simulations and measurements are used to determine the stray inductance of the different busbars.
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