Additional Hi Functions - ABB SACE Emax 2 Series Installation, Operation And Maintenance Instructions

Additional Hi functions

109 | © 2013 ABB | 1SDH001000R0002 - L7804
Functions
For some protections there are functions available that extend the functionality:
Protection
Trip Enable
Zone selectivity
Startup Enable
Directional zone selectivity
Trip Enable
Disables the trip command, in order to use the protection as an alarm signal, without any
opening commands.
Zone Selectivity
The function allows multiple circuit-breakers belonging to the same installation to be connected
together, in order to coordinate the releases and to reduce the tripping times in the case of
protection S2.
The function allows circuit-breakers to be coordinated so that, in the event of a failure:
• the circuit-breaker closest to the fault trips.
• the other circuit-breakers are locked for a programmable time.
For greater details see the programmer manual.
Startup Enable
The function allows you to modify the threshold of the protection for a period that can be set
by the user. The period is activated when a threshold is exceeded (Startup Threshold), which
can be programmed by the user via Ekip Connect software.
Directional Zone Selectivity
The function allows, as with zone selectivity, multiple circuit-breakers belonging to the same
installation to be connected together, in order to coordinate the releases and reduce tripping
times, but with some important differences:
• It is to be used in installations with a ring circuit.
• It allows tripping to be managed and coordinated according to the power flows (determined
by the direction of the current), in order to minimise dispersion of energy.
NOTE: Directional Zone Selectivity works as an alternative to S and G zone selectivity.
S2 D UV2 OV2
x x x
x
x x
x
Ekip Touch protection release | 11 - Hi-Touch protections
ABB | SACE Emax 2
UF2 OF2
x x