GE D60 Instruction Manual page 283

5 SETTINGS
The DUTT scheme requires a secure and dependable signaling system. For this reason, a series/parallel combination
of receive signal "contacts" is often used. This is accomplished by using a multi-bit communications system to transmit
redundant copies of the
(AND gate) or 2-out-of-3 voting logic) with FlexLogic™. The
(secure) TX signals.
In single-bit applications,
four-bit applications,
DUTT RX1
signals from two or more remote terminals should be connected through OR gates in the FlexLogic™ and the resulting
signals should be configured as the
SETTING
DUTT SCHEME
FUNCTION:
Disabled = 0
Enabled = 1
FLEXLOGIC OPERANDS
PH DIST Z1 PKP
GND DIST Z1 PKP
FLEXLOGIC OPERANDS
AR FORCE 3P TRIP
OPEN POLE OP
SETTINGS
DUTT NO OF COMM
BITS:
DUTT RX1:
Off = 0
DUTT RX2:
Off = 0
DUTT RX3:
Off = 0
DUTT RX4:
Off = 0
FLEXLOGIC OPERANDS
AR FORCE 3P TRIP
OPEN POLE OP
GE Multilin
signal (often via different paths) and building appropriate security logic (such as series
TX
must be used. In two-bit applications,
DUTT RX1
, , , and
DUTT RX2 DUTT RX3
inputs.
DUTT RX
AND
OR
SETTINGS
DUTT SEAL-IN
DELAY:
0
AND
OR
Figure 5–113: DUTT SCHEME LOGIC
D60 Line Distance Relay
settings should be associated with the final
DUTT RX1(4)
and
DUTT RX1
must be used. In multi-terminal applications, the RX
DUTT RX4
DUTT NO OF COMM
BITS:
RUN
TRANSMIT TABLE
Phase
Selector
t
RST
DUTT NO OF COMM
BITS:
RUN
RX
TRIP TABLE
Phase
Selector
5.6 CONTROL ELEMENTS
must be used. In
DUTT RX2
FLEXLOGIC OPERANDS
DUTT TX1
DUTT TX2
DUTT TX3
DUTT TX4
FLEXLOGIC OPERAND
DUTT OP
FLEXLOGIC OPERANDS
DUTT TRIP A
DUTT TRIP B
DUTT TRIP C
DUTT TRIP 3P
837012AA.CDR
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