Siemens 7UT51

7UT51 v3
Operation Using a Personal Computer
15
PRIM-2330C 157
• Address 1124 – Rated primary current of
Winding 2 CT
• Address 1125 – Star-point formation of
Winding 2 CT
• Address 1126 – Processing of winding 2 zero
sequence current
• Address 1127 – Rated prim. current of
Winding 2 star-point CT
• Address 1128 – Ground point formation of
Winding 2 star-point CT
Transformer Data (Address Block 1400)
• Address 1401 – Nominal current of virtual object
• Address 1402 – Rated primary current of CT
• Address 1404 – Rated primary current of
star-point CT
• Address 1405 – Ground point of the CT currents
87
-
Transformer Diff Protection Data
(Address Block 1600)
• Address 1601 – 87-State of differential protection
• Address 1603 – 87-Pick-Up value of differential
protection
• Address 1604 – 87HS-Highset Pickup rms value
of differential protection
• Address 1606 – 87-Slope 1 of operating
characteristic
• Address 1607 – 87-Base point for slope 2 of
operating characteristic
• Address 1608 – 87-Slope 2 of operating
characteristic
• Address 1610 – 87-State of 2nd harmonic
restraint
• Address 1611 – 87-2nd harmonic content in the
differential current
• Address 1612 – 87-Time for cross-blocking with
2nd harmonic
• Address 1613 – 87-Choice a further (n-th)
harmonic restraint
• Address 1614 – 87- nth harmonic content in the
differential current
• Address 1615 – 87-Active time for cross-blocking
w/ nth harmonic
• Address 1616 – 87-Limit IDIFFmax of nth
harmonic restraint
• Address 1617 – 87-Max. blocking time at CT
saturation
• Address 1618 – 87-Min. restraint current for
blocking @CT saturation
• Address 1625 – 87-Trip time delay of differential
current stage
• Address 1626 – 87-Operating time of high-set
differential current stage
• Address 1627 – Reset delay after differential
operation has been initiated
Measured Value Supervision (Address Block 2900)
• Address 2903 – Symmetry threshold for current
monitoring
• Address 2904 – Symmetry factor for current
monitoring