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This paper presents the temperature rise analysis of a three phase busbar system. Busbar normally used to transmit and distribute current to distribution board in a building. Higher current capacity will naturally increase heat generation in the busduct system. The heat generation normally creates power losses or eddy current losses at the conductor. In this paper, a two dimensional finite element...
Each busbar conductor of a phase is subjected to a force due to the short-circuit currents. In this paper, the electromagnetic forces affected by the short-circuit current in three-phase busbar conductor are calculated in vertical and horizontal arrangement. The short-circuit current densities are calculated mathematically. The calculations are performed by assuming a peak value of steady-state ac...
One of the most frequently used fault detection methods for induction motor is the current signature analysis. This technique depends upon locating by finite element method and analysis of specific harmonic components in the line current produced by unique rotating flux components caused by faults such as broken rotor bars. The motor current signature analysis method can detect these problems at an...
This paper presents design, modeling and prototyping of three-phase permanent-magnet brushless machines having a fractional slot to pole ratio. In particular, permanent magnet brushless machines which exhibits slot number and pole number differ by either plusmn2 or plusmn1 will be considered. Such small difference in slot and pole numbers will potentially improve motor characteristics and subsequently...
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