Hitachi Relion 670 Series Commissioning Manual page 235

1MRK506371-UUS Rev. M
23. Finally check that pickup and trip information is stored in the event memory. Repeat steps 17 – 22
for phases B and C.
If voltage compensation will be used do the following steps:
24. Set EnShuntReactorto Enabled and activate input signal SWIPOS.
25. Check that the line impedance (R1 and X1) and reactor impedance (Xc) are set to the correct
values.
26. Inject symmetrical phase voltages equal to 120% of the rated voltage.
27. Increase the injected current (same phase angle as the injected voltage) in phase A from zero and
note the operated value (pickup value) of the function. Check that this value is equal to:
=
V
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.
11.11.7.3 Sudden change in current variation SCCVPTOC (51)
Prepare the IED for verification of settings as outlined in section
for test" in this chapter.
1. Set Operation to Enabled.
2. Connect the test set for three-phase current injection to the appropriate IED terminals.
3. Inject symmetrical phase currents equal to half the rated current.
4. Increase the injected current in phase A slowly by more than the set IPickup. No signal shall be
activated.
5. Decrease the injected current in phase A to half the rated current.
6. Increase the injected current in phase A in a step by more than the set IPickup. Pickup and trip
signal shall be activated.
11.11.7.4 Carrier receive logic LCCRPTRC (94)
Prepare the IED for verification of settings as outlined in section
for test" in this chapter.
1. Set Operation to Enable.
2. Select OpMode according to the application: If two carrier channels are used and high security
shall be used set OpMode = 2 Out Of 2, otherwise 1 Out Of 2.
3. Connect switchable binary signal/s CR! and CR2 to the binary input/s to be used for the carrier
receive (CR) signal/s.
4. Connect switchable binary signal/s to the binary input to be used for the local check signal. If three
pole trip is used only one LOCTR is used. If single pole trip is used in addition the phase selective
signals LOCTR_A, LOCTR_Band LOCTR_C are connected.
5. Connect switchable binary signal/s to the binary input to be used for the communication supervision
signal/s CHERR1 and CHERR2.
If OpMode = 2 Out Of 2:
6. Activate input and check output signals according to table
Line distance protection REL670
Commissioning manual
[
V
injected
V - I - j
injected
injected
X
xy
© 2017 - 2023 Hitachi Energy. All rights reserved
]
V
· ( )
injected
+ jX
R
+ j
L
L
X
cp
42
Testing functionality by secondary injection
GUID-5494DF56-449D-49BE-B75D-9C667E890E16 v1
"Requirements" and section
GUID-16B24935-A9F4-427C-9B8D-71B25DE000E2 v1
"Requirements" and section
and 43.
Section 11
"Preparing
"Preparing
229