Hitachi RER670 Commissioning Manual page 144

Section 10
Testing functionality by secondary injection
8. Activate the CRL binary input.
9. Reset the CRL and BLOCK binary input.
10. Inject the polarizing voltage 2U0 to about 110% of the setting ( 2U0> ) 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.
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.
15. Switch the polarizing voltage off and reset the CRL binary input.
10.10.4.3 Completing the test
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.
10.11 Logic
10.11.1 Tripping logic
Prepare the IED for verification of settings outlined in Section
This function is functionally 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. The instances of SMPPTRC are identical.
10.11.1.1 Function revision history
Document
revision
A
B
C
D
E
Table continues on next page
138
No ECHO, CS and TRWEI outputs should appear.
No ECHO and TRWEI should appear.
No ECHO and TRWEI should appear.
Product History
revision
2.2.1 STN (Start neutral) output added. IEC 61850 mapping is made for the added output.
2.2.1 -
2.2.2 -
2.2.3 -
2.2.3 -
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"Preparing the IED to verify
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Railway application RER670
Commissioning manual
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