5-28
Trip and Target Logic
Date Code 990215
SEL-351P Manual Técnico
Depending on the installation, perhaps one output contact (e.g., OUT106 = STOP) can be
connected in parallel to both STOP inputs on the communications equipment in Figure
SECTION 5: .16. Then output contact OUT104 can be used for another function.
Figure SECTION 5: .16 also shows communication equipment RX (receive) output contacts
from each remote terminal connected to separate inputs IN104 and IN106 on the SEL-351P. The
inputs operate as block trip receive inputs for the two remote terminals and are used in the
SEL
OGIC
Control Equation setting:
BT = IN104 + IN106
Depending on the installation, perhaps one input (e.g., IN104) can be connected in parallel to
both communication equipment RX (receive) output contacts in Figure SECTION 5: .16. Then
setting BT would be programmed as:
BT = IN104
and input IN106 can be used for another function.
In Figure SECTION 5: .15 and Figure SECTION 5: .16, the carrier scheme cutout switch
contact (85CO) should be closed when the communications equipment is taken out of service so
that the BT input of the relay remains asserted. An alternative to asserting the BT input is to
change to a setting group where the DCB logic is not enabled.
Figure SECTION 5: .15:
SEL-351P Recloser Control Connections to Communications
Equipment for a Two-Terminal Line DCB Scheme
Содержание SEL-351P
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