ABB Relion 670 Series Commissioning Manual page 179

1MRK 506 371-UUS E
1. Set
2. Leave the inputs for CB close inactivated. These signals should not influence.
3. Apply the fault condition, including initiation of CCRBRF (50BF), with current above the set
Pickup_PH value.
4. Check that the re-trip, if selected, and back-up trip commands are achieved.
5. Disconnect injected AC and BFI_3P input signals.
Checking the case with fault current below set value
The case shall simulate a case where the fault current is very low and operation will depend on CB
position signal from CB auxiliary contact. It is suggested that retrip without current check is used,
RetripMode = UseFunctionMode Check.
setting
1. Set
2. Apply input signal for CB closed to relevant input or inputs 52a_A (B or C)
3. Apply the fault condition with input signal(s) for initiation of CCRBRF (50BF). The value of
current should be below the set value
4. Verify that phase selection re-trip (if selected) and back-up trip are achieved after set times.
Failure to trip is simulated by keeping the signal(s) CB closed activated.
5. Disconnect the AC and the BFI_3P signal(s). Keep the CB closed signal(s).
6. Apply the fault and the initiation again. The value of current should be below the set value
Pickup>BlkCBPos .
7. Arrange disconnection of CB closed signal(s) well before set back-up trip time
a correct CB tripping.
8. Verify that back-up trip is not achieved. Re-trip can appear for example, due to selection
RetripMode = Always .
9. Disconnect injected AC and BFI_3P input signals.
11.5.8.10 Verifying the external start signal has timed out
1. Set
2. Set
3. Use default value for
4. Use default value for time delay backup trip
5. Leave the inputs for CB close inactivated. These signals should not influence.
6. Apply START signal, and after 1.5 s apply the current above the set
7. Check that STALARM signal is set after 1.0 s and backup trip is blocked.
11.5.8.11 Verifying that backup signal is released when STALARM is reset
1. Set
2. Set
3. Use default value for
4. Use default value for time delay backup trip
5. Leave the inputs for CB close inactivated. These signals should not influence.
6. Apply START signal at t=0s, and after 1.5 s apply the current above the set
7. Check that STALARM signal is set after 1.0s and backup trip is blocked.
8. Reset START signal after 3.5s, ensure that STALARM reset immediately.
9. Set START after 3.6s, ensure that backup trip is set after
(3.750 s).
Line distance protection REL670
Commissioning manual
FunctionMode = Current or CB Pos .
FunctionMode = Current or CB Pos .
StartMode = FollowStart .
FunctionMode = Current .
tStartTimeout = 1.0 s.
StartMode = FollowStart .
FunctionMode = Current .
tStartTimeout = 1.0 s.
© Copyright 2017 ABB. All rights reserved
Testing functionality by secondary injection
Pickup_BlkCBPos
Pickup>BlkCBPos
t2 = 0.150 s.
t2 = 0.150 s.
t2 backup trip delay has expired
Section 11
M12104-281 v11
t2 . It simulates
GUID-754108D4-E440-4F8F-917B-04579EC1C2C7 v1
IPPU value.
GUID-49CA34B6-5AE9-4E45-9F4E-33DA5F626209 v1
IPPU value.
173