Page 93 - SACE Tmax XT - Catalogue

PROTECTION TRIP UNITS 3/59

03
Depending on the need two different accuracy levels are available for the trip unit, the Standard Preci-
sion and High Precision certified according to IEC 61557-12:

Instantaneous measurements Standard Precision High Precision certified
according to IEC 61557-12
Currents (RMS) [A] L1, L2, L3, Ne 1% 0.50%
Ground fault current (RMS) [A] Ig 2% 0.50%
Phase-phase voltage (RMS) [V] U12, U23, U31 0.50% 0.50%
Phase-neutral voltage (RMS) [V] U1, U2, U3 0.50% 0.50%
Frequency [Hz] f 0.20% 0.20%
Active power [kW] P1, P2, P3, Ptot 2% 1%
Reactive power [kVAR] Q1, Q2, Q3, Qtot 2% 2%
Apparent power [KVA] S1, S2, S3, Stot 2% 1%
Power factor PF1, PF2, PF3, PF total 2% 1%
Active energy [kWh] Ep total, Ep positive, Ep negative 2% 1%
Reactive energy [kVARh] Eq total, Ep positive, Ep negative 2% 2%
Apparent energy [kVAh] Es total 2% 1%
The lowest current value that the trip units Ekip Touch/Hi-Touch can measure is 0,004 x In
High Precision certified according to IEC 61557-12
Available only for factory assembled circuit-breakers, this accuracy is available as default on the Ekip
Hi-Touch and Ekip G Hi-Touch trip units, anyway it is always possible to have this accuracy for the other
Ekip Touch trip units by adding when ordering the dedicated commercial codes.
For XT2 Ekip Touch trip units the High Precision is available in general for In ≥ 100A