Completing The Test; Voltage-Restrained Time Overcurrent Protection Vrpvoc(51V); Function Revision History - ABB Relion 670 Series Commissioning Manual

1MRK 504 165-UUS Rev. J
This means that if current jumps from 0 to 2 times pickup and negative sequence capability value of
generator K1 is set to 10 sec and current pickup level I2-1> is set to 10% of rated generator
current, then TRST1 and TRIP signals operates at time equal to 250 s ± tolerance.
10. Repeat the above-described tests for the step 2 of the function excluding the inverse time testing.
11. Finally check that pickup and trip information is stored in the event menu.
Example
The CT ratios
currents are applied:
IA
IB
IC
The service value output NSCURR indicating amplitude of negative sequence current in primary
amperes should be 962A approximative.
11.5.17.2

Completing the test

Continue to test another functions or end the test by changing the Test mode setting to Off. Restore
connections and settings to their original values, if they were changed for testing purposes. Make sure
that all built-in features for this function, which shall be in operation, are enabled and with correct
settings.
11.5.18

Voltage-restrained time overcurrent protection VRPVOC(51V)

Prepare the IED for verification of settings as outlined in section
for test" in this chapter.
11.5.18.1

Function revision history

Document
revision
A
B
C
D
E
F
G
H
J
Transformer protection RET670
Commissioning manual
CTprim
CT sec
for all three phases is 1000 A, IBase is 1000 A, and the following secondary
Ampl = 1.1 A
Ampl = 0.6 A
Ampl = 1.3 A
Product History
revision
2.2.1 -
2.2.1 -
2.2.2 -
2.2.3 -
2.2.3 -
2.2.4 -
2.2.4 -
2.2.4 -
2.2.5 Previously called settings Characterist and t_DefOC had their names changed to
Characteristic and t_OC for more clear understanding.
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Testing functionality by secondary injection
Angl = 15 deg
Angl = 97 deg
Angl = -135 deg
GUID-DA67F057-00AD-4391-B50E-047FD6C16EBB v1
GUID-764DA61A-D987-4358-867A-DA43ADDC6E57 v5
"Requirements" and section
GUID-9B72080E-B886-4138-B8BC-CCB99C289C87 v1
Section 11
"Preparing
197