Phillip Slawinski wrote:
Say I wanted to pair a 12/60 and 2 15/30s. If I set the gap for the 12/60 would paralleling them be okay? _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla
Hi Phillip,Unlike distribution transformers, plate transformers, or even MOTS, you can indeed parallel NST's since they're sufficiently shunted to prevent dangerous levels of circulating currents even when open circuit voltages are substantially different. They'll happily play together when phased properly. Because there are circulating currents between the 15 kV and 12 kV NST's, the combined open circuit output voltage of the hybrid combination will lie somewhere between that of a 12 kV and a 15 kV NST. And, since you'll be clamping the maximum voltage via your gap, this should not add any undue stress across the insulation of the 12 kV NST. While not as efficient as using NST' of the same voltage, this approach will indeed work... with NST's or OBIT's.
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