this type of equipment. The auxiliary power wiring should have a minimum cross-
sectional area of 1.0 mm
2
and a voltage rating of 250 V. Branch circuit protection must
be provided in the auxiliary power supply wiring to the IED and, if necessary, it must
be possible to disconnect it manually from the power supply. Fuse or circuit breaker
up to 6 A and 250 V should be close to the equipment. It is recommended to separate
the instrument transformer leads from the other cables, that is, they should not be run
in the same cable ducts or loom.
Connection examples
The figures below show typical installations for rotor and stator earth fault protection
with injection unit REX060 and coupling capacitor unit REX061. Some installations
with and without shunt resistor unit REX062 are also shown.
IEC11000224-3-en.vsdx
IEC11000224 V3 EN
Figure 39:
Rotor connection example
1MRK514019-UEN A
Section 6
Connecting
670 series 2.0 IEC
63
Installation manual
Summary of Contents for Relion 670 2.0 IEC Series
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