Page 52 - Sace Emax 2 Catalogue

3/28 SACE EMA X 2 LOW VOLTAGE AIR CIRCUIT-BRE AKERS

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Technical characteristics for protection

trip units

Measurement functions

Instantaneous measurements Parameters Precision (Class 1) Ekip Touch * Ekip Hi-Touch Ekip G Touch * Ekip G Hi-Touch
( )
( )
Currents (RMS) [A] L1, L2, L3, Ne 0.5%
Earth fault current (RMS) [A] Ig 2%
Phase-phase voltage (RMS) [V] U12, U23, U31 0.5%
Phase-neutral voltage (RMS) [V] U1, U2, U3 0.5%
Phase sequence
Frequency [Hz] f 0.1%
Active power [kW] P1, P2, P3, Ptot 1%
Reactive power [kVAR] Q1, Q2, Q3, Qtot 2%
Apparent power [KVA] S1, S2, S3, Stot 1%
Power factor total 2%
Peak factor L1, L2, L3, Ne

Counters recorded from installation or from the last reset Parameters Precision (Class 1)
Active energy [kWh] Ep total, Ep positive, Ep negative 1%
Reactive energy [kVARh] Eq total, Ep positive, Ep negative 2%
Apparent energy [KVAh] Es total 1%

Network Analyzer Parameters Intervals
Hourly average voltage value [V] - Umin= 0.75…0.95 x Un t = 5…120min
[no] - Umax= 1.05…1.25 x Un
- Events counter (nr. of events day by day in the last year plus the
total events in the breaker's lifetime)
Short voltage interruptions [no] - Umin= 0.75…0.95 x Un t <40ms
- Events counter (nr. of events day by day in the last year plus the
total events in the breaker's lifetime)
Short voltage spikes [no] - Umax= 1,05…1,25 x Un t <40ms
- Events counter (nr. of events day by day in the last year plus the
total events in the breaker's lifetime)
Slow-voltage sags and swells [no] - Umin1= 0.75…0.95 x Un t = 0.02s...60s
- Umin2= 0.75…0.95 x Un
- Umin3= 0.75…0.95 x Un
- Umax1= 1.05…1.25 x Un
- Umax2= 1.05…1.25 x Un
- Events counter (nr. of events day by day in the last year plus the
total events in the breaker's lifetime)
Voltage unbalance [V] - U neg. seq.= 0.02…0.10 x Un t = 5…120min
[no] - Events counter (nr. of events day by day in the last year plus the
total events in the breaker's lifetime)
Harmonic analysis Current and Voltage
- up to 50°
- Alarm THD: 5…20%
- Single harmonic alarm:
3...10% plus a count of minutes the harmonic has been exceeded
(*) Precision (Class 1) available with dedicated extracode
With no Class 1, please refer to the precision values below: