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GE Multilin
L60 Line Phase Comparison Relay
5-37
5 SETTINGS
5.2 PRODUCT SETUP
5
the same data rate. UR-series IEDs equipped with dual-channel communications cards apply the same data rate to both
channels. Delivery time for direct input/output messages is approximately 0.2 of a power system cycle at 128 kbps and 0.4
of a power system cycle at 64 kbps, per each ‘bridge’.
The G.703 and RS422 modules are fixed at 64 kbps only. The
SETTINGS PRODUCT SETUP
DIRECT I/O
DIRECT I/O DATA RATE
setting is not applicable to these modules.
The
DIRECT I/O CHANNEL CROSSOVER
setting applies to L60s with dual-channel communication cards and allows crossing
over messages from Channel 1 to Channel 2. This places all UR-series IEDs into one direct input/output network regard-
less of the physical media of the two communication channels.
The following application examples illustrate the basic concepts for direct input/output configuration. Please refer to the
Inputs/Outputs
section in this chapter for information on configuring FlexLogic™ operands (flags, bits) to be exchanged.
EXAMPLE 1: EXTENDING THE INPUT/OUTPUT CAPABILITIES OF A UR-SERIES RELAY
Consider an application that requires additional quantities of digital inputs and/or output contacts and/or lines of program-
mable logic that exceed the capabilities of a single UR-series chassis. The problem is solved by adding an extra UR-series
IED, such as the C30, to satisfy the additional input/output and programmable logic requirements. The two IEDs are con-
nected via single-channel digital communication cards as shown in the figure below.
Figure 5–6: INPUT/OUTPUT EXTENSION VIA DIRECT INPUTS/OUTPUTS
In the above application, the following settings should be applied:
UR IED 1:
DIRECT OUTPUT DEVICE ID:
"1"
DIRECT I/O RING CONFIGURATION:
"Yes"
DIRECT I/O DATA RATE:
"128 kbps"
UR IED 2:
DIRECT OUTPUT DEVICE ID:
"2"
DIRECT I/O RING CONFIGURATION:
"Yes"
DIRECT I/O DATA RATE:
"128 kbps"
The message delivery time is about 0.2 of power cycle in both ways (at 128 kbps); i.e., from Device 1 to Device 2, and from
Device 2 to Device 1. Different communications cards can be selected by the user for this back-to-back connection (fiber,
G.703, or RS422).
EXAMPLE 2: INTERLOCKING BUSBAR PROTECTION
A simple interlocking busbar protection scheme could be accomplished by sending a blocking signal from downstream
devices, say 2, 3, and 4, to the upstream device that monitors a single incomer of the busbar, as shown below.
Figure 5–7: SAMPLE INTERLOCKING BUSBAR PROTECTION SCHEME
NOTE
842711A1.CDR
UR IED 1
TX1
RX1
UR IED 2
TX1
RX1
842712A1.CDR
UR IED 1
UR IED 2
UR IED 4
UR IED 3
B
L
OC
K
Содержание L60
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Страница 24: ...1 14 L60 Line Phase Comparison Relay GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1...
Страница 42: ...2 18 L60 Line Phase Comparison Relay GE Multilin 2 2 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2...
Страница 78: ...3 36 L60 Line Phase Comparison Relay GE Multilin 3 3 DIRECT INPUT OUTPUT COMMUNICATIONS 3 HARDWARE 3...
Страница 368: ...8 28 L60 Line Phase Comparison Relay GE Multilin 8 2 SINGLE POLE TRIPPING 8 THEORY OF OPERATION 8...
Страница 470: ...D 10 L60 Line Phase Comparison Relay GE Multilin D 1 PROTOCOL APPENDIXD D...
Страница 482: ...E 12 L60 Line Phase Comparison Relay GE Multilin E 2 DNP POINT LISTS APPENDIXE E...
Страница 498: ...x L60 Line Phase Comparison Relay GE Multilin INDEX Z ZERO SEQUENCE CORE BALANCE 3 9...