ABB REL 551 2.3 Series Installation And Comissioning Manual page 118


112
Pole discordance protection (PD)
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Prepare the terminal for verification of settings as outlined in section "Preparing for
test" in this chapter.
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Use the PD---TRIP signal from the configured binary output to
stop the timer.
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(This test should be performed together with AR).
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No PD---TRIP signal should appear.
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No PD---TRIP signal should appear.
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