94
Breaker failure protection (BFP)
Chapter 13
Verifying settings by secondary
injection
4.2.3
Checking the retrip function without current check
Procedure
1.
Set RetripType = No I> check.
2.
Apply the fault condition with current below the set value.
3.
Verify that retrip is achieved after t1.
4.
Apply the fault condition with current over the set value.
5.
Verify that back-up trip is achieved after t2.
4.3
Completing the test
Continue to test another function or complete the test by setting the test mode to off. Restore
connections and settings to the original values, if they were changed for testing purpose.
Summary of Contents for REB 551-C3*2.5
Page 9: ...Contents ...
Page 21: ...12 Introduction to the installation and commissioning manual Chapter 1 Introduction ...
Page 27: ...18 Note signs Chapter 2 Safety information ...
Page 53: ...44 Installing the 56 64 kbit data communication cables Chapter 5 Installing the terminal ...
Page 59: ...50 Checking the binary I O circuits Chapter 6 Checking the external circuitry ...
Page 147: ...138 Repair support Chapter 16 Fault tracing and repair ...