Checking The Case With Fault Current Below Set Value I>Blkcont; Checking The Phase Current Operate Value, Ip; Completing The Test - ABB Relion 650 Series Commissioning Manual

Section 7
Testing functionality
1. Set
2. Leave the inputs for CB close inactivated. These signals should not influence.
3. Apply the fault condition, including start of CSPRBRF, with current above the set
value.
4. Check that the re-trip, if selected, and back-up trip commands are achieved.
5. Disconnect injected AC and start input signals.
7.4.10.7 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 relevant input or inputs CBCLDL1, CBCLDL2, or
CBCLDL3
3. Apply the fault condition with input signal(s) for start of CSPRBRF. 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 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>BlkCont .
7. Arrange disconnection of BC 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
"Re-trip without current check".
9. Disconnect injected AC and start of input signals.
7.4.10.8 Checking the phase current operate value,
Check the low set
1 out of 3 or 2 out of 4 as set under Main menu/Settings/IED Settings/Current/
=
CSPRBRF(50BF)/CSPRBRF:1.
1. Apply the fault condition, including start of CSPRBRP, with a current just below set
2. Repeat the fault condition and increase the current in steps until trip appears.
3. Compare the result with the set
4. Disconnect AC and start input signals.
7.4.10.9

Completing the test

Continue to test another function or end the testing by setting the parameter
under Main menu/Tests/IED test mode/TESTMODE:1. If another function is tested, then set
the parameter
CSPRBRF(50BF)/CSPRBRF:1 for the function, or for each individual function in a chain, to be
tested next. Remember to set the parameter
has been tested.
76
FunctionMode = Current&Contact .
RetripMode = No CBPos Check .
FunctionMode = Current & Contact check.
IP> current where setting FunctionMode = Current and setting BuTripMode
NoI> check or Retrip off is set, only back-up trip can be used to check set IP> .
If
Blocked to No under Main menu/Tests/Function test modes/Current/
© Copyright 2013 ABB. All rights reserved
I>BlkCont .
IP>
IP> .
Blocked to Yes , for each individual function that
1MRK 506 336-UEN B
IP>
I>BlkCont
GUID-375F329D-74D7-4B40-9E92-62F90339D2FB v2
t2 . It
GUID-3A437594-9221-43A8-A523-DD769E272CE1 v3
IP> .
GUID-9358B837-B543-43F4-B169-6C51501D3C05 v1
TestMode to Off
Line distance protection REL650
Commissioning manual