Relay Parameterization; Design Description; Input / Output Connections - ABB REJ 527 Technical Reference Manual

Directional or non-directional earth-fault relay
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REJ 527
4.1.10.
4.2.
4.2.1.
48
Technical Reference Manual
Table 31: Outputs
Operation of output contacts
Output PO1
Output PO2
Output SO1
Output SO2
Enable of output contacts PO1,
PO2, SO1 and SO2
Note!
Parameters O7...O10 and O41 control the physical output contacts that can be
connected to e.g. circuit breakers.

Relay parameterization

Local parameterization
The parameters of the relay can be set either locally via the MMI or externally via
serial communication with the Relay Setting Tool. When the parameters are set
locally the setting parameters can be chosen from the hierarchical menu structure.
The desired language for parameter description can be selected. Refer to "Operator's
Manual".
External parameterization
The Relay Setting Tool is used for parameterizing the relay units. The parameters
can be set off-line in a PC and downloaded to the relay over a communication port.
The views for parameterization included in the Relay Setting Tool menu structure
are the same as the views on the technical level of the local MMI.

Design description

Input / output connections

All external circuits are connected to the terminals on the rear panel of the relay.
Terminals X1.1-_ are dimensioned for one 0.5...6.0 mm
2
mm
wires and terminals X2.1-_ for one 0.08...2.5 mm
2
mm
wires.
The energizing voltage is connected to terminals X1.1/4-6. The nominal voltage
(100/110/115/120 V) of the matching transformers has to be selected with the SPA
parameter V154 or via the MMI. The energizing current for the earth-fault unit is
connected to terminals X1.1/1-3 when the rated current I
X1.1/1-2 when the rated current I
Recorded
State of output
functions
(R,W,P)
(R)
O7
O27
O8
O28
O9
O29
O10
O30
O41
2
wire or for two max 2.5
2
wire or for two max 1.5
n
=1.0 A.
n
ABB Substation Automation
Products and Systems
Value
0 or 1
0 or 1
0 or 1
0 or 1
-
0 or 1
=0.2 A, and to terminals
1MRS750616-MUM

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