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Manual 7SJ46
Make the wiring of the 7SJ46 protection device as specified in the
circuit diagram (Figure 2-9).
X2_6
L3
X2_5
X2_4
L2
X2_3
X2_2
L1
X2_1
X1_3
24V - 250V DC
+~
115V, 230V AC
X1_2
- ~
=
X1_1
Figure 2-9
Termination diagram 7SJ46
C53000-K1174-C002-4
2.9.4 Commissioning
Live status
X1_9
contact
X1_8
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.
X1_7
TRIP or
Only qualified personnel shall work on and around this equipment
Pickup
X1_6
after becoming thoroughly familiar with all warnings and safety
X1_5
TRIP
notices in this instruction manual as well as with the applicable safety
X1_4
steps, safety regulations, and precautionary measures.
Particular attention must 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
power supply voltage has been removed, i.e. capacitors can still be
charged.
• The limit values given in Technical Data (see 2.11) must not be
exceeded, neither during testing nor during commissioning.
Installation and commissioning
WARNING!
59
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