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  • Temperature rise and short circuit calculation for partially type tested assembly (PTTA)
  • Short Circuit Calculation
  • Temperature Rise Calculation
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  • Temperature rise and short circuit calculation for partially type tested assembly (PTTA)

    If partially type tested assembly (PTTA) is accepted, we will perform short circuit calculation based on IEC 60865 and temperature rise based on IEC 60890. Short circuit calculation is performed to determine the right bus bar and its support so that both of them witstand the thermal and electrodynamic force during short circuit. While temperature rise calculation is performed so that the switchgear or motor control center operates within acceptable temperature rating during normal operation.