ABB Relion 670 Series Commissioning Manual page 209

1MRK 504 165-UUS Rev. J
IN
UN
1) Inject set value for IMinReverse+1.5% of CT secondary rated current, (that is0.025A+0.015A when IMinReverse
3. The following signals that shall be given from the APPTEF function:
•
•
4. Inject the following analogue quantities given in secondary amperes and volts and wait for three
seconds:
IN
UN
1) Inject set value for IMinReverse –1.5% of CT secondary rated current, ( 0.025A-0.015A when IMinReverse =2.5%
5. The following signal is given from the APPTEF function:
•
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:
•
•
•
Transformer protection RET670
Commissioning manual
1)
=2.5% and CT rated secondary is 1A).
STUN at the beginning of injection.
STRV after approximately 150ms (default value for tStart=150ms)
The TRIP signal is not issued for EF in the reverse direction.
1)
and CT rated secondary is 1A)).
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
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Testing functionality by secondary injection
Magnitude=40mA; Angle=0 degrees
Magnitude=75V; Angle=0 degrees
Magnitude=10mA; Angle=0 degrees
Magnitude=75V; Angle=0 degrees
GUID-99777636-56B6-4B0D-A796-6163B5DE94A2 v1
Magnitude=75mA; Angle=180 degrees
Magnitude=45V; Angle=0 degrees
Section 11
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