1SDH002031A1002 ECN000092998 Rev. B
SACE Tmax XT2
– XT4 | 74
Block functions
From the service connector (with Ekip Connect) or with system bus communication, for some
protections it is possible to configure six blocks, useful for deactivating protection according to
programmable events:
Block name
Description
BlockOnProgStatusA
Active block if the programmable status A is true
BlockOnProgStatusB
Active block if the programmable status B is true
BlockOnProgStatusC
Active block if the programmable status C is true
BlockOnProgStatusD
Active block if the programmable status D is true
BlockOnStartUp
Active block during StartUp time (if the StartUp for the specific
protection is available and activated)
BlockOnOutOfFrequency
Active block if the measured frequency is outside the range 30
Hz-80 Hz
Each block is independent and has its own activation command (
Block On
). In any case, each
protection can be configured with multiple block conditions (operation in OR logic).
The protections that have blocks are: S, I, G, MCR, S2, D, S(V), S2(V), UV, OV, VU, UV2, OV2,
UP, OP, RP, RQ, OQ, RV, UF, OF, UF2, OF2, ROCOF, UC, U, R Jam, R Stall.
IMPORTANT: blocks can cause:
Increase in trip times (max: + 30 ms), due to the verification of the event itself
(example: frequency control)
Unwanted deactivation of the protection if the block is associated with states
or module signals on the local bus and the auxiliary power supply is missing.
In this case it may be useful to program the event considering also the status
of the auxiliary power supply (Supply from Vaux).
Unwanted deactivation of the protection if the block is associated with
frequency measurements and the voltage is lower than the minimum
calculation threshold
IMPORTANT: if the function is activated, during startup the blocks are deactivated
(excluding BlockOnStartup, which works during this period)
Synchrocheck
The
Ekip Synchrocheck
module recognizes and signals if there are synchronism conditions
between two independent voltage sources (e.g. gen grid) for closing the interconnection
switch.
The descriptions of the module, the protection function and the performance are outlined in the
chapter dedicated to the modules (page 161).
Summary of Contents for SACE Tmax XT2
Page 84: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 84 L curve Ekip M Touch S curve t k I2 ...
Page 86: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 86 G curve t k I2 G curve t k ...
Page 87: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 87 IU curve UV curve UV2 curve ...
Page 88: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 88 OV curve OV2 curve VU curve ...
Page 89: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 89 S V curve S2 V curve RV curve ...
Page 90: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 90 UF curve UF2 curve OF curve OF2 curve ...
Page 91: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 91 RP curve D curve ...
Page 92: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 92 OQ curve OP curve ...
Page 93: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 93 UP curve RQ curve ...
Page 94: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 94 ROCOF curve R JAM curve R STALL ...
Page 95: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 95 UC curve ...
