Completing The Test; Logic; Tripping Logic, Common 3-Phase Output Smpptrc; Function Revision History - Hitachi RET670 Commissioning Manual

1MRK 504 165-UEN Rev. K
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.
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.
11.12.5.3

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.
11.13

Logic

11.13.1

Tripping logic, common 3-phase output SMPPTRC

Prepare the IED for verification of settings outlined in Section
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.
11.13.1.1

Function revision history

Document
revision
A
B
C
D
E
F
G
H
11.13.1.2

3 phase operating mode

Transformer protection RET670
Commissioning manual
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 -
2.2.4 -
2.2.4 Added TRINN (Trip neutral) input and TRN (trip neutral) outputs. TRINALL (Trip all
phases) input is changed from TRIN. IEC 61850 mapping is made for the added output.
The block logic is corrected for the lockout functionality.
2.2.5 -
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Testing functionality by secondary injection
"Preparing the IED to verify
GUID-ADA72CE6-B6ED-48B3-A897-A7B42ECDEBB4 v2
Section 11
M13936-90 v5
SEMOD53577-1 v1
SEMOD54375-102 v10
settings".
SEMOD54375-106 v10
259