Verifying The Case Functionmode = Current Or Cb Pos; Verifying The External Start Signal Has Timed Out - ABB Relion 670 Series Commissioning Manual

Section 11
Testing functionality by secondary injection
1. Set
2. Apply input signal for CB closed to relevant input or inputs CBCLDL1, CBCLD2 or CBCDL3.
3. Apply the input signal, or signals for the start of CCRBRF.
4. Verify that phase selection re-trip and back-up trip are achieved after set times.
5. Disconnect the start signal(s). Keep the CB closed signal(s).
6. Apply input signal(s), for start of CCRBRF.
7.
8. Arrange disconnection of CB closed signal(s) well before set back-up trip time
9. Verify that back-up trip is not achieved.
11.4.9.9 Verifying the case
To be made only when
the tests in one phase only, or at three-phase trip applications for just three-phase tripping.
Checking the case with fault current above set value
The operation shall be as in
1. Set
2. Leave the inputs for CB close inactivated. These signals should not influence.
3. Apply the fault condition, including the start of CCRBRF, with the current above the set
IP> value.
4. Check that the re-trip, if selected, and back-up trip commands are achieved.
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, setting
1. Set
2. Apply input signal for CB closed to the relevant input or inputs CBCLDL1 (2 or 3).
3. Apply the fault condition with input signal(s) for start of CCRBRF. 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 input signal and the START signal(s). Keep the CB closed signal(s).
6. Apply the fault and the start again. The value of current should be below the set value
I>BlkCBPos .
7. Arrange disconnection of CB closed signal(s) well before set back-up trip time
simulates a correct CB tripping.
8. Verify that back-up trip is not achieved. Re-trip can appear for example, due to selection
RetripMode = Always .
11.4.9.10

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.
108
FunctionMode = Contact
FunctionMode = Current or CB Pos
FunctionMode = Current or CB Pos is selected. It is suggested to make
RetripMode = UseFunctionMode .
FunctionMode = Current or CB Pos .
RetripMode = UseFunctionMode Check.
FunctionMode = Current or CB Pos .
StartMode = FollowStart .
FunctionMode = Current .
tStartTimeout = 1.0 s.
© Copyright 2017 ABB. All rights reserved
IP>
I>BlkCBPos
I>BlkCBPos .
t2 = 0.150 s.
1MRK 511 403-UEN E
t2 .
M12104-237 v7
M12104-241 v8
M12104-281 v11
t2 . It
GUID-754108D4-E440-4F8F-917B-04579EC1C2C7 v1
IPh> value.
Bay control REC670
Commissioning manual