I know I’m missing something fundamental when understanding transformer impedances.
How is %Z calculated? It seems to me that if you looked at one winding of a transformer secondary (on a typical 480delta to 208wye transformer) you would find less turns, but more conductor. I am wondering if percent impedance is literally the ratio of impedance of the secondary (low) side as a percent of the impedance of the high side. Is it just this simple? I feel like I am missing something fundamental.
Also,
This information I understand to typically vary based on the transformer size/voltage and specs, which would make sense because this would impact the impedance on both the high and low side of a transformer. It sounds like this is always something that should be verified from the manufacturer, but I’ve noticed that within SKM there is a calculator present to pop out values.
So the follow up is, for an isolation transformer, that is 480 high and also 480 low, lets say as an example, is the %Z then = 100%?
Please fill in the gaps. I need to master this stuff.
How is %Z calculated? It seems to me that if you looked at one winding of a transformer secondary (on a typical 480delta to 208wye transformer) you would find less turns, but more conductor. I am wondering if percent impedance is literally the ratio of impedance of the secondary (low) side as a percent of the impedance of the high side. Is it just this simple? I feel like I am missing something fundamental.
Also,
This information I understand to typically vary based on the transformer size/voltage and specs, which would make sense because this would impact the impedance on both the high and low side of a transformer. It sounds like this is always something that should be verified from the manufacturer, but I’ve noticed that within SKM there is a calculator present to pop out values.
So the follow up is, for an isolation transformer, that is 480 high and also 480 low, lets say as an example, is the %Z then = 100%?
Please fill in the gaps. I need to master this stuff.