SIRIUS 3RR2 current monitoring relays
8.4 Functions
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
691
Basic current monitoring relay Standard current monitoring relay Functions/Parameters
3RR2141-.A.30 3RR2142-.A.30 3RR2241-.F.30 3RR2242-.F.30
Phase sequence
monitoring
( = yes)
- - Selectable Selectable
Residual current
monitoring
(I >>
= yes)
- - Selectable Selectable
Blocking current
monitoring (n x Iâ–²)
- - 2 to 5 x I
max
;
OFF
2 to 5 x I
max
;
OFF
Load current
monitoring (I
s
/I
p
)
Apparent
current
Apparent current Apparent
current/active
current
Apparent
current/active
current
Cable break/phase
failure detection (L )
2-phase 2-phase 3-phase 3-phase
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