Siemens 7UT51

13
Binary-Signal Inputs, Signal Contacts, Trip Contacts, and LED Indicators
7UT51 v3
130 PRIM-2330C
>Buchh. Trip
>Buchh. Tank
392
393
>Tripping stage from Buchholz protection
>Tank supervision from Buchholz protection
Relay Pick
-
up
Trip
501
511
Relay Pick
-
up
General trip of the relay
49 O/L1 TRIP 1571 49
-
TRIP by thermal O/L protection 1
49 O/L2 TRIP 1621 49
-
TRIP by thermal O/L protection 2
Back Gen. Flt
BU Tdly 50HS
BU Tdly 50/51
BU Gen.Trip
2411
2441
2442
2451
Back
-
up O/C+G/F: General fault detected
BU 50HS
-
Highest O/C time expired
BU 50/51
-
Overcurrent timer expired
BU Overcurrent+G/F: General Trip
Ext1 Gen.Flt
Ext1 Gen.TRIP
Ext 2 Gen.Flt
Ext 2 Gen.TRIP
4536
4537
4556
4557
External trip 1: General fault detect
External trip 1: General TRIP
External trip 2: General fault detect
External trip 2: General TRIP
87Diff Pickup
87Diff HS PU
87Diff GenFlt
87DiffGenTrip
87DiffTripPhA
87DiffTripPhB
87DiffTripPhC
87 Trip
87HS Trip
5621
5622
5631
5671
5672
5673
5674
5691
5692
87
-
Differential unit picked
-
up
87
-
HS Diff prot unit picked
-
up
87
-
Diff prot: General fault detection
87
-
Diff protection: General trip
87
-
Diff protection: Trip PhA
87
-
Diff protection: Trip PhB
87
-
Diff protection: Trip PhC
87
-
Diff protection: Trip
87HS
-
Diff protection: Trip
RGF Pick
-
up
RGF Gen. Flt
RGF Gen. TRIP
5816
5817
5821
Restricted ground
-
fault: Pick
-
up
Restricted ground
-
fault: General fault detection
Restricted ground
-
fault: General TRIP
Tank PU
TankGen FAULT
Tank Gen.TRIP
5916
5917
5921
Transformer tank prot.: Pick
-
up
Transformer tank prot: General FAULT detect
Transformer tank prot.: General TRIP
LCD Message Code Event that will activate the trip relay