Page 10 - Sace Emax 2 Manual for design engineers
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ABB | SACE Emax 2
Electronic protections Ekip Dip can be configured with the following protections:
Current protections
Overload (L - ANSI 49)
Time-delayed overcurrent
Instantaneous overcurrent (l - ANSI 50)
Earth fault current (G - ANSI 51N & 50N TD)
Ekip Touch can be configured with the following protections:
NOTE: the protections are either present by default or must be installed by means of an
additional package, depending on the Trip unit model and version (consult Trip unit
Overview for details)
Current protections
Overload (L - ANSI 49)
Time-delayed overcurrent
Second time-delayed overcurrent (S2 – ANSI 50TD)
Instantaneous overcurrent (l - ANSI 50)
Earth fault current (G - ANSI 51N & 50N TD)
Zone selectivity for S, I and G protections (ANSI 68)
Directional overcurrent (D – ANSI 67)
Zone selectivity for D protection (ANSI 68)
Programmable instantaneous overcurrent (2I - ANSI 50)
Earth fault current with external toroid (Gext - ANSI 51G & 50GTD)
Modified differential ground fault (MDGF)
Residual current (Rc – ANSI 64 & 50 NTD)
Current unbalance (IU – ANSI 46)
Voltage controlled overcurrent (S(V) - ANSI 51V)
Second voltage controlled overpower (S2(V) - ANSI 51V)
Voltage protections
Undervoltage (UV - ANSI 27)
Overvoltage (OV - ANSI 59)
Second undervoltage protection (UV2– ANSI 27)
Second overvoltage protection (OV2– ANSI 59)
Voltage unbalance (VU – ANSI 47)
Cyclical direction of the phases (ANSI 47)
Residual overvoltage (RV – ANSI 59N)
Frequency protections
Underfrequency (UF - ANSI 81L)
Overfrequency (OF - ANSI 81H)
Second minimum frequency protection (UF2– ANSI 87L)
Second maximum frequency protection (OF2 – ANSI 87H)
Rate of change of frequency (ROCOF – ANSI 81R)
Power protections
Reverse active power (RP - ANSI 32R)
Power factor (ANSI 78)
Loss of field or reverse reactive power (RQ – ANSI 40 or 32RQ)
Reactive overpower (OQ – ANSI 32OF)
Active overpower (OP – ANSI 32OF)
Active underpower (UP – ANSI 32LF)
Miscellaneous protections
Synchronism between two supply sources - Synchrocheck (SC - ANSI 25)
Interface protections (IPS)
8 | © 2020 ABB | 1SDH001330R1002 - ECN000134959 - Rev. A Circuit-breakers E1.2-E2.2-E4.2-E6.2 | 2 - Guide to the product choice
