ABB REF610 Technical Reference Manual page 139

1MRS755535
Feeder Protection Relay
Technical Reference Manual - ANSI Version
Terminals X2.1-_ are dimensioned for one 0.5...6.0 mm
*
2
two max 2.5 mm (AWG 24-12) wires
Terminals X3.1-_ and X4.1-_ are dimensioned for one 0.2...2.5 mm
*
2
0.2...1.0 mm (AWG 24-16) wires.
The energizing phase currents of the relay are connected to terminals:
X2.1/1-2
*
X2.1/3-4
*
X2.1/5-6
*
For inputs for phase and ground-fault currents, refer to Table 5.2.1.-1.
The relay can also be used in single or two-phase applications by
leaving one or two energizing inputs unoccupied. However, at least
terminals X2.1/1-2 must be connected.
The energizing ground-fault current of the relay is connected to terminals X2.1/7-8,
see Table 5.2.1.-1.
The input terminals of the optional I/O module are located on connection socket
X3.1, see Table 5.2.1.-4 and Table 5.2.1.-5.
When connection socket X3.1 is used, the optional I/O module must be
installed.
Terminals X4.1/21-24 and X3.1/1-6 (optional) are digital input terminals, see
Table 5.2.1.-5. The digital inputs can be used to generate a blocking signal, to
unlatch output contacts or for remote control of relay settings, for instance. The
requested functions are selected separately for each input in switchgroups SGB1...5.
The digital inputs can also be used to trigger the disturbance recorder; this function
is selected with SPA parameter V243.
The auxiliary voltage of the relay is connected to terminals X4.1/1-2, see
Table 5.2.1.-2. At DC supply, the positive lead is connected to terminal X4.1/1. The
permitted auxiliary voltage range of the relay is marked on the front panel of the
relay under the handle of the plug-in unit.
Output contacts PO1, PO2 and PO3 are heavy-duty trip contacts capable of
controlling most circuit breakers, see Table 5.2.1.-4.The signals to be routed to
PO1...PO3 are selected with the switches of switchgroups SGR1...SGR3. On
delivery from the factory, the trip signals from all the protection elements are routed
to PO1, PO2 and PO3.
Output contacts SO1...SO5 can be used for signalling on pickup and tripping of the
relay, see Table 5.2.1.-4.Output contacts SO3...SO5 are optional and available only
if the optional I/O module has been installed. The signals to be routed to SO1...SO5
REF610 REF610
2
(AWG 20-8) wire or
2
wire or two
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