2.10 Automatic Reclosure Function (optional)
133
7SD610 Manual
C53000-G1176-C145-4
Binary inputs:
381 „>1p Trip Perm“ The external reclosure device allows one-pole tripping
(logic inversion or three-pole coupling). If this input is
not assigned or not routed (matrix), the protection
functions trip three-pole for all faults. If the external re-
closure device cannot supply this signal but supplies a
„three-pole coupling“ signal instead, this must be taken
into account in the allocation of the binary inputs: the
signal must be inverted in this case (L-active = active
without voltage).
Binary outputs
:
501 „Relay PICKUP“ Start of protection device, general (if required by exter-
nal recloser device).
512 „Relay TRIP 1pL1“ Trip of the device 1-pole L1.
513 „Relay TRIP 1pL2“ Trip of the device 1-pole L2.
514 „Relay TRIP 1pL3“ Trip of the device 1-pole L3.
515 „Relay TRIP 3ph.“ Trip protective device 3-pole.
In order to obtain a phase-segregated trip indication, the respective single-pole trip
commands must be combined with the three-pole trip command on one output.
Figure, 2-47 for example, shows the interconnection between a 7SD610 and an exter-
nal reclosure device with a mode selector switch.
Depending on the external reclosure device requirements, the three-pole indications
(No. 512, 513, 514) can be combined to one „single-pole tripping“ output; No. 515
sends the „three-pole tripping“ signal to the external device.
In case of exclusively three-pole reclose cycles, the general pickup signal (No. 501, if
required by the external reclosure device) and trip signal (No. 511) of 7SD610 (see
Figure 2-48) are usually sufficient.
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