Optical Budget Calculation For Pmu - Pdc Communication - ABB REG670 Commissioning Manual

Section 11
Establishing connection and verifying the IEEE C37.118/1344 communication
11.6
122
• Now it should be possible to see the streaming synchrophasor data.
• Verify the communication by following the same steps as in section
IEEE C37.118/1344 TCP
Optical budget calculation for PMU - PDC
communication
Most of the times, the PMU IEDs are located in the substations. A local PDC might be
located in the substation. For communications within the substation or between the
IED and the WAN/LAN access point, it is important to know what is the optical budget
available. The graph in Figure
PDC configuration using typical OEMs.
14
12
62.5/125 µm
10
8
6
50/125 µm
4
2
0
0 0.5 1.0 1.5
FIBER OPTIC CABLE LENGTH - km
IEC11000409 V1 EN-US
Figure 38: Optical power budget for fiber optic cable lengths
As shown in the graph, if one uses a 62.5/125 µm fiber, the value under the 62.5/125
µm curve represents the remaining optical budget at any link length, which is available
for overcoming non-fiber cable related losses.
Losses in the connectors and splices are typically 0.3dB/connection. The user must
reserve 3dB spare for the uncertainty of the measurements.
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
communication.
38 shows the dynamic range available for a PMU –
2.0 2.5 3.0 3.5 4.0
IEC11000409_1_en.vsd
1MRK 502 073-UUS A
Verifying the
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Commissioning manual