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9
9.1
High speed binary output logic (HSBO)
High speed binary output logic (HSBO)
Prepare the terminal for verification of settings as outlined in section "Preparing for
test" in this chapter.
Since the high-speed binary out logic is dependent upon other function blocks (HS---,
ZM1-, ZC1P-, ZCOM- and TRIP-) in order to operate, those functions have to be set
into operating mode (On).
HSBO- trip from communication logic
Whenever a trip appears during these tests, it should be possible to block it through the
function input HSBO-BLKZCTR. Activation of either HSBO-BLKHSTR or HSBO-
BLKHSCS should not block the trip outputs in this case. It should also be possible to
block the trip signals at the backing function from which the internal signals are derived
(ZC1P, ZCOM or TRIP).
Note!
No carrier send should appear during the tests in this section.
Test for three of the trip schemes in ZC1P (Blocking Scheme not included).
Procedure
1.
Apply inputs in different combinations to ZC1P-CACCLn,
ZC1P-CRLm / ZC1P-CRMPH and check the outputs of HSBO-
TRLx. For each trip, test the blocking action for all three
HSBO blocking inputs and ZC1P-BLOCK.Check results ac-
cording to the used scheme.
ZC1P/SchemeType = Intertrip
No local trip condition is required (-CACCLn). Trip output
HSBO-TRLx will be activated directly according to corresponding
-CRLx. Activation of -CRMPH should result in a three-phase trip.
ZC1P/SchemeType = PermissiveUR
When -CACCLn is applied in the same time as -CRLn (same phas-
es), a trip output should appear in the n-phase(s), HSBO-TRLn. If
-CRMPH is applied instead of -CRLn, a trip should appear in the
same phase as -CACCLn.
Chapter 10
Verifying settings by secondary
injection
77
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