I agree with waross
I had a situation while working on a train system at a major airport where the control transformers on the ground detection system burnt up. The multiple damage was discovered in (5) substations. It was found that a single car had a traction motor brush that had dislodged...
Not sure if this is the right place to post but maybe someone can help.
I have a Spectrum transfer switch that I am trying to get a O&M manual and schematic drawings on.
See attached Name/ Data Plate.
Tks
Spectrum Detroit Diesel
Model ZCD-668341-0600
600A, 208V, 3 phase, 3 pole
ser# K0652903...
I'm new to this forum so hope this goes thru.
You may want to connect a load on the LV side and then take your measurements. Try to avoid a n0n-linear load.
Open circuit (unloaded) readings of THD may be meaningless in your application.