Verifying Instantaneous Back-Up Trip At Cb Faulty Condition; Verifying The Case Functionmode = Contact; Verifying The Function Mode Current/Contact - ABB RER670 Commissioning Manual
Relion 670 series, railway application version 2.2 iec
Hide thumbs
Also See for RER670:
- Applications manual (506 pages) ,
- Commissioning manual (188 pages) ,
- Installation manual (112 pages)
Table of Contents
Advertisement
1MRK 506 377-UEN C
10.5.7.5
10.5.7.6
10.5.7.7
Railway application RER670 2.2 IEC
Commissioning manual
Testing functionality by secondary injection
Verifying instantaneous back-up trip at CB faulty condition
Applies in a case where a signal from CB supervision function regarding CB being
faulty and unable to trip is connected to input CBFLT.
1.
Repeat the check of back-up trip time. Disconnect current and START input
signals.
2.
Activate the input CBFLT. The output CBALARM (CB faulty alarm) should
appear after set time tCBAlarm. Keep the input activated.
3.
Apply the fault condition, including the START of CCRWRBRF, with the
current above the set current value.
4.
Verify that back-up trip is obtained without intentional delay (i.e. independent
of set time delay of t2).
FunctionMode = Contact
Verifying the case
It is assumed that re-trip without current check is selected, FunctionMode =
Contact.
1.
Set FunctionMode = Contact
2.
Apply the input signal for CB closed to the relevant input or inputs
CBCLDL1 or CBCLD2.
3.
Apply the input signal START of CCRWRBRF.
4.
Verify that the re-trip and back-up trip are achieved after set times.
5.
Disconnect the start signal. Keep the CB closed signal(s).
6.
Apply the input signal START of CCRWRBRF.
7.
Arrange disconnection of CB closed signal(s) well before set back-up trip
time t2.
8.
Verify that back-up trip is not achieved.
Verifying the function mode
To be made only when FunctionMode = Current/Contact is selected.
Checking the case with fault current above set value
The operation shall be as in FunctionMode = Current.
1.
Set FunctionMode = Current/Contact.
2.
Leave the inputs for CB close inactivated. These signals should not influence.
3.
Apply the fault condition, including the START of CCRWRBRF, with the
current above the set IP> value.
4.
Check that the re-trip, if selected, and back-up trip commands are achieved.
Current/Contact
Section 10
M12104-197 v7
M12104-213 v10
M12104-237 v6
IP>
M12104-241 v7
117
Advertisement
Table of Contents
