No ECHO, CS and TRWEI outputs should appear.
3.
Increase the injected voltage to about 110% of the setting (
3U0
) operating voltage.
4.
Activate the CRL binary input.
5.
Check that the ECHO, CS and TRWEI appear on the corresponding binary output or on the
local HMI.
6.
Reset the CRL binary input.
7.
Activate the BLOCK binary input.
8.
Activate the CRL binary input.
No ECHO, CS and TRWEI outputs should appear.
9.
Reset the CRL and BLOCK binary input.
10.
Inject the polarizing voltage 3U0 to about 110% of the setting (
3U0>
) and adjust the phase
angle between the voltage and current to (180°-
AnglRCA
) setting, the current leads the
voltage.
11.
Inject current in one phase to about 110% of the set operate current (
IN>Dir
).
12.
Activate the CRL binary input.
No ECHO and TRWEI should appear.
13.
Abruptly reverse the current to 65° lagging the voltage to operate the forward directional
element.
No ECHO and TRWEI should appear.
14.
Switch the current off and check that the ECHO, CS and TRWEI appear on the corresponding
binary output during 200ms after resetting the directional element. If EF4PTOC also operates in
forward direction, CS should be obtained.
15.
Switch the polarizing voltage off and reset the CRL binary input.
11.11.5.3
Completing the test
M13936-90 v5
Continue to test another function or end the test by changing the
TESTMODE
setting to
Off
. Restore
connections and settings to the original values, if changed for testing purposes.
11.12
Logic
SEMOD53577-1 v1
11.12.1
Tripping logic, common 3-phase output SMPPTRC
SEMOD54375-102 v10
Prepare the IED for verification of settings outlined in Section
"Preparing the IED to verify settings"
This function is functionality tested together with other protection functions (line differential protection,
earth-fault overcurrent protection, and so on) within the IED. It is recommended that the function is
tested together with the autorecloser function, when built into the IED or when a separate external
unit is used for reclosing purposes.
Section 11
1MRK 511 403-UEN Rev. L
Testing functionality by secondary injection
186
Bay control REC670
Commissioning manual
© 2017 - 2022 Hitachi Energy. All rights reserved
Содержание REC670
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