ABB Relion 670 Series Commissioning Manual page 176

Section 11
Testing functionality by secondary injection
7. Activate the BLOCK binary input.
8. Activate the CRL binary input.
9. Switch off the polarizing voltage and reset the BLOCK and CRL binary input.
If setting
1. Inject the polarizing voltage 3U0 to about 90% of the setting (
2. Activate the CRL binary input.
3. Increase the injected voltage to about 110% of the setting (
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.
9. Reset the CRL and BLOCK binary input.
10. Inject the polarizing voltage 3U0 to about 110% of the setting (
phase angle between the voltage and current to (180°-
leads the voltage.
11. Inject current in one phase to about 110% of the set operate current (
12. Activate the CRL binary input.
13. Abruptly reverse the current to 65° lagging the voltage to operate 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 operates in forward direction, CS should be obtained.
15. Switch the polarizing voltage off and reset the CRL binary input.
170
No ECHO and CS should appear.
WEI = Echo & Trip
No ECHO, CS and TRWEI outputs should appear.
No ECHO, CS and TRWEI outputs should appear.
No ECHO and TRWEI should appear.
No ECHO and TRWEI should appear.
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1MRK 511 403-UEN E
3U0> ) operating voltage.
3U0 ) operating voltage.
3U0> ) and adjust the
AnglRCA ) setting, the current
IN>Dir ).
Bay control REC670
Commissioning manual
M13936-52 v12