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TCC and Short Circuit Reference Voltages

TCC and Short Circuit Reference Voltages

TCC and Short Circuit Reference Voltages

(OP)
All,
Breaker TCC and damage curves are plotted for one line diagram section that has a transformer 480V Delta/208V Wye-Grounded, a breaker at the transformer primary and cables.
The plot time axis current is referenced to 208V,and short circuit current for 3 phase fault and phase to ground have been calculated.
In order to show short circuit values in the plot, 3 phase short value is represented as is however for phase to ground short circuit value the representation is made considering it is calculated at 120V.
I want to check if the representation is correct,
Thanks
Yigo


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