ABB TPU 7x.xx_1VLC000513 Indoor Supporting Current Transformers

ABB TPU 7x.xx_1VLC000513 Indoor Supporting Current Transformers,
The transformers cast in epoxy resin and designe for insulation voltages from 36 kV to,
40.5 kV. The transformers are designe as single-or-multiple turn transformers,
with one transformer ratio, or with the possibility to be switche over on the secondary or primary side.
The number of secondary windings are from 1 to 8 (usually 2 secondary windings),
depending on the combination of parameters (such as the accuracy class, shortcircuit current, overcurrent factor…).
The secondary windings are use for measurement or protection purposes,
or for special use (testing winding, „PX“ class windings ..).
One terminal of each secondary winding used and one terminal of short-circuited,
and not used winding have to be earthed during the transformer operation.