Commissioning - Siemens SIPROTEC easy 7SJ45 Handbuch

Manual 7SJ45
Make the wiring of the 7SJ45 protection device as specified in the
circuit diagram (Figure 2-8 or Figure 2-9).
X2_6
X2_5
X2_4
X2_3
X2_2
X2_1
Figure 2-8 Circuit diagram 7SJ45 with relay output
X2_6
X2_5
X2_4
X2_3
X2_2
X2_1
Figure 2-9 Circuit diagram 7SJ45 with pulse output
C53000-K1174-C001-7
X1_4
X1_2
X1_3
X1_1
7SJ45XX-1
X1_4
+
X1_3
-
X1_1
7SJ45XX-0

2.9.4 Commissioning

WARNING!
Hazardous voltages are present in this electrical equipment during
operation. Severe personal injury or property damage can result if the
device is not handled properly.
Only qualified personnel shall work on and around this equipment
after becoming thoroughly familiar with all warnings and safety
notices in this instruction manual as well as with the applicable safety
steps, safety regulations, and precautionary measures.
Particular attention mutst be drawn to the following:
• The device is to be earthed to the substation earth before any other
connections are made.
• Hazardous voltages can exist in the power supply and at the
connections to current transformers, voltage transformers, and test
circuits.
• Hazardous voltages can be present in the device even after the
communication cables have been removed, i.e. capacitors can still
be charged.
• The limit values given in Technical Data (2.11) must not be
exceeded, neither during testing nor during commissioning.
Installation and commissioning
61