GUID-EBE462A5-7366-467A-BA18-583E75428EDB V1 EN
Figure 1. RET630 and REF630 IEDs applied for the incoming feeder and primary switchgear
in a double busbar arrangement. The RET630 with preconfiguration A is used for
protection and control of the power transformer, the REF630 with preconfiguration B
protects and controls the outgoing feeder and the REF630 with preconfiguration D is
used for the bus sectionalizer.
Feeder Protection and Control 1MRS756380 A
REF630
Product version: 1.0 Issued: 15.09.2009
4 ABB
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