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High speed binary output logic (HSBO) Chapter 10
Verifying settings by secondary
injection
ZC1P/SchemeType = PermissiveOR
Same result as for the permissive underreach test should be ob-
tained.
2. Remove applied signals.
Test for three of the trip schemes in ZCOM (Blocking Scheme not included) together
with TRIP.
Procedure
1. Apply inputs in different combinations to TRIP-PSLn, ZCOM-
CACC and ZCOM-CR and check the outputs of HSBO-TRLx.
For each trip test the blocking action for all three HSBO block-
ing inputs, ZCOM-BLOCK and TRIP-BLOCK. Check results
according to the used scheme and trip program.
• ZCOM/SchemeType = Intertrip
• TRIP/Program = 1/2/3ph
When -PSLn is applied in the same time as -CR, a trip output
should appear in the n-phase(s), HSBO-TRLn.
• ZCOM/SchemeType = PermissiveUR
• TRIP/Program = 1/3ph
When -PSLn is applied in the same time as -CACC and -CR, a trip
output should appear in the n-phase(s), HSBO-TRLn.
• ZCOM/SchemeType = PermissiveOR
• TRIP/Program = 3ph
Each time -CACC and -CR are activated at the same time, a three-
phase trip should be obtained, independent of any phase selection
(-PSLn).
2. Remove applied signals.
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