ABB Relion 670 Series Commissioning Manual page 180

Section 11
Testing functionality by secondary injection
11.5.8.12 Test of
1. Set
2. Set
3. Set
4. Use default value for
5. Use default value for time delay backup trip
6. Use default value for time delay re-trip
7. Leave the inputs for CB close inactivated. These signals should not influence.
8. Apply START signal, and after 0.200 s apply the current above the set
9. Check that STALARM does not come and that re-trip TRRET is instantly set at 0.200s while
the backup trip TRBU set only when
11.5.8.13 Test of
1. Set
2. Set
3. Set
4. Use default value for
5. Use for example the default value for time delay backup trip
6. Use for example the default value for time delay retrip
7. Leave the inputs for CB close inactivated. These signals should not influence.
8. Apply START signal, and after 0.200 s apply the current above the set
9. Check that STALARM does not come and that both re-trip TRRET and backup trip TRBU
comes instantly at 0.200 s (that is, as soon as current is given to the function).
11.5.8.14 Completing the test
continue to test another function or end the test by changing the
Restore connections and settings to their original values, if they were changed for testing
purposes.
11.5.9 Stub protection STBPTOC (50STB)
Prepare the IED for verification of settings outlined in Section
settings".
Logical signals for STBPTOC (50STB) protection are available on the local HMI underMain menu/
Settings/IED Settings/Current protection/Stub(PTOC,50STB)/STBPTOC:x
11.5.9.1 Measuring the trip limit of set values
1. Check that the input logical signals BLOCK and ENABLE and the output logical signal TRIP are
all logical zero.
2. Activate the input ENABLE on the STBPTOC (50STB) function block
3. For a short while inject a current (fault current) in one phase to about 110% of the set
operating current, and switch the current off.
Observe to not exceed the maximum permitted overloading of the current circuits in the IED.
4. Switch the fault current on and measure the operating time of STBPTOC (50STB).
174
FollowStart&Mode behaviour
StartMode = FollowStart&Mode .
FunctionMode = Current .
RetripMode = UseFunctionMode .
tStartTimeout = 1.0 s.
FollowStart behaviour
StartMode = FollowStart .
FunctionMode = Current .
RetripMode = UseFunctionMode .
tStartTimeout = 1.0 s.
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t2 = 0.150 s.
t1 = 0.000 s.
t2 expires at 0.200 + 0.150s.
t1 = 0.000 s.
"Preparing the IED to verify
1MRK 506 371-UUS E
GUID-D68675FC-2533-4D6F-A26B-E1611FB7B32A v1
IPPU value.
GUID-E3FFFAD0-C9E9-4EAF-8418-314E9D475EDA v1
t2 = 0.150 s.
IPPU value.
TESTMODE setting to Disabled .
Line distance protection REL670
Commissioning manual
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M14922-6 v8