Type TRB Zener Tripping Unit Instruction Leaflet
41-842D
dc Trip Bus
8
5
1
4
Pos.
Relay #1
PR
D1
Relay #2 D2
TRB-2 52d1 52 TC
52d2 #2
#1
52 TC
Neg.
Sub 1 187A696
Sub 1 187A713 Figure 1. Optional Schematic
8
1
Figure 2. Internal Schematic of Type TRB-2 Zener Tripping Unit
8
5
3
1
4
Sub 1 187A697 Figure 3. Internal Schematic of Type TRB-3 Zener Tripping Unit
2
7
5
3
4
Sub 1 187A698 Figure 4. Internal Schematic of Type TRB-4 Zener Tripping Unit
41-842D
Sub 6 184A117 Figure 5. Outline and Drilling Plan for Types TRB, TRB-1, TRB-2, TRB-3 and TRB-4 Zener Tripping Units
3
IL 41-842 - Revision D
ABB ABB Inc. 4300 Coral Ridge Drive Coral Springs, Florida 33065 Telephone: Fax:
+1 954-752-6700 +1 954-345-5329
www.abb.com/substation automation
dc Trip Bus
8
5
1
4
Pos.
Relay #1
PR
D1
Relay #2 D2
TRB-2 52d1 52 TC
52d2 #2
#1
52 TC
Neg.
Sub 1 187A696
Sub 1 187A713 Figure 1. Optional Schematic
8
1
Figure 2. Internal Schematic of Type TRB-2 Zener Tripping Unit
8
5
3
1
4
Sub 1 187A697 Figure 3. Internal Schematic of Type TRB-3 Zener Tripping Unit
2
7
5
3
4
Sub 1 187A698 Figure 4. Internal Schematic of Type TRB-4 Zener Tripping Unit
41-842D
Sub 6 184A117 Figure 5. Outline and Drilling Plan for Types TRB, TRB-1, TRB-2, TRB-3 and TRB-4 Zener Tripping Units
3
IL 41-842 - Revision D
ABB ABB Inc. 4300 Coral Ridge Drive Coral Springs, Florida 33065 Telephone: Fax:
+1 954-752-6700 +1 954-345-5329
www.abb.com/substation automation
