Hitachi Relion 670 Series Commissioning Manual page 233

1MRK506371-UUS Rev. M
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.
9. Reset the CRL and BLOCK binary input.
10. Inject the polarizing voltage 3V0 to about 110% of the setting (3V0PU>) 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 trip current ( INDir).
12. Activate the CRL binary input.
13. Abruptly reverse the current to 65° lagging the voltage to trip the forward directional element.
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 trips in forward
direction, CS should be obtained.
15. Switch the polarizing voltage off and reset the CRL binary input.
11.11.6.3 Completing the test
Continue to test another function or end the test by changing the TESTMODE setting to Disabled.
Restore connections and settings to the original values, if changed for testing purposes.
11.11.7 Direct transfer trip logic
11.11.7.1 Low active power and power factor local criteria LAPPGAPC (37_55)
Prepare the IED for verification of settings as outlined in section
for test" in this chapter.
1. Connect the test set for three-phase current injection and three-phase voltage to the appropriate
IED terminals.
2. Inject symmetrical phase voltages equal to the rated voltage.
3. Decrease the injected current in phase A and note the operated value (pickup value) of the studied
step of the function. This current shall have the same phase angle as the injected phase voltage.
The active power for operation is calculated as:
4. Increase the current slowly and note the reset value.
5. Connect a trip output contact to a timer.
6. Set the injected current to 50% of the operate level in the tested stage. Switch on the current and
check the time delay.
7. Check that all trip and pickup contacts operate according to the configuration (signal matrices).
Line distance protection REL670
Commissioning manual
No ECHO, CS and TRWEI outputs should appear.
No ECHO and TRWEI should appear.
No ECHO and TRWEI should appear.
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Testing functionality by secondary injection
"Requirements"
· I
P = V
(single-phase active power).
ph ph
Section 11
M13936-90 v5
GUID-F6AE5927-D93F-4CAD-A6C6-445720C806D8 v1
GUID-5F73C74C-3BA1-4DF0-8D04-CE1416AF727D v1
and section "Preparing
227