Installing Ring-Core Current Sensors At The Cable Connection - Siemens 8DJH Installation And Operating Instructions Manual

Medium-voltage switchgear
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500-8067.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • Revision 05
13.4

Installing ring-core current sensors at the cable connection

Ring-core current sensors are mounted on the cable plug during installation of the
high-voltage cables. The following current sensors can be mounted:
• Individual ring-core current sensors
• 3-phase ring-core current sensors
➭ Mount the cable plugs on the high-voltage cables according to the manufacturer's
stipulations, see page 63, "Connecting high-voltage cables".
➭ Push the ring-core current sensors ① or the 3-phase ring-core current sensor ③ onto the
cable plugs ② .
Fig. 45:
Individual ring-core current sensors
NOTE
In panels with a width of 310 mm, there is not sufficient space for 3 individual ring-core
current sensors next to each other.
➭ Mount the cable plugs together with the ring-core current sensors on phases L1 and L3.
➭ Push the ring-core current sensor on phase L2 further onto the cable plug, and position it
in front of the two other ring-core current sensors.
➭ Connect the cable plugs together with the ring-core current sensors at the bushings, see
page 63, "Connecting high-voltage cables".
Fig. 46:
3-phase ring-core current sensor
Installation
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