ABB Relion 670 Series Commissioning Manual page 125

1MRK 511 403-UEN Rev. K
•
Test of function operation for high-ohmic EF
1. Change the following settings from the default values:
•
•
•
2. Inject the following analogue quantities given in secondary amperes and volts and wait for
three seconds in order to obtain the trip output (default delay for tTrip=2s):
IN
UN
1) Inject lower voltage than 50V for high-ohmic EF test
3. The following signals shall be given from the APPTEF function:
•
•
•
Test of function operation for intermittent EF
1. Change the following settings from the default values:
•
•
•
•
•
2. Inject manually the following analogue quantities given in secondary amperes and volts but
only for 100ms (in order to avoid STFW signal which is delayed for 150ms):
IN
UN
3. Within the reset time (that is 5s with above setting) re-apply the above quantities again for
100ms and repeat this step for at least the same number of times as set under setting
UN>StartsNo (at least 4 times with above settings).
4. The following signals are given from the APPTEF function:
•
•
•
•
Bay control REC670
Commissioning manual
Only STUN at the beginning of injection.
The function did not operate for this reverse EF now because the injected
current is below the set level.
OperationMode = Start and Trip in order to obtain the trip signal
IN>=5% (default value)
IMinForward =50% in order for standard logic not to operate for this test
1)
STUN at the beginning of injection.
WRNFW, and STFW after approximately 650ms
TRIP after approximately 2.65s
OperationMode = Start and Trip in order to obtain the trip signal
IN>=5% (default value)
IMinForward=2.5% (use the default value)
UN>StartsNo=4 (default, but it can be changed if required)
tReset=5.0s (set maximum value in order to make the test process easier)
STUN at the beginning of every injection period of 100ms.
WRNFW at the beginning of every injection period of 100ms
STFW and STIEF appear after the fourth injection period of 100ms (when UN>StartsNo
=4 as set above)
TRIP comes after 2s (set tTrip time) after the STFW signal has appeared
© 2017 - 2021 Hitachi Power Grids. All rights reserved
Testing functionality by secondary injection
GUID-99777636-56B6-4B0D-A796-6163B5DE94A2 v1
Magnitude=75mA; Angle=180 degrees
Magnitude=45V; Angle=0 degrees
GUID-ADDA3A73-9884-41B1-96D0-EE9653004E96 v1
Magnitude=75mA; Angle=180 degrees
Magnitude=100V; Angle=0 degrees
Section 11
119