Potential transformers 6 (10) kV Potential transformer JDZX10-3,6,12 (REL-12) Potential transformer JDZX10-3,6,12 (RZL-12) Potential transformer JDZ(X)8-3,6,12R Potential transformer JDZ(J)W-12 Potential transformer JDZ(X)(J)W-10