Hitachi Relion 670 Series Commissioning Manual page 125

1MRK 511 403-UEN Rev. L
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
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:
•
•
•
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):
Bay control REC670
Commissioning manual
The TRIP signal is not issued for EF in the reverse direction.
1)
=2.5% 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
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)
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Testing functionality by secondary injection
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
GUID-ADDA3A73-9884-41B1-96D0-EE9653004E96 v1
Section 11
119