... angle error by voltage method.-Can be used at CT/PT large manufacturers or sub-station with high voltage interference.Product ... flux), Ts (secondary time constant) -Simple wire connections ,most tests are based the same wire connection, such as excitation, ratio, phase, ... and metric class, TP class , booting CT, various voltage class PT, etc. Specifications-Output voltage:0-180V(RMS);-Output current:0 ...