hager h3+ - Page 59

596LE005550A
Function of the Energy trip unit
3.3 Measurement function
For a measurement taken at another temperature, within the temperature range
of - 25 °C...+ 70 °C, the temperature accuracy derating coecient is 0.05% per °C.
The accuracy range is the part of the measuring range for which the defined
accuracy is obtained; the definition of this range may be related to the load
characteristics of the circuit breaker.
Variables Symbols
Measuring
range
Class IEC
61557-12 or
accuracy
Currents and Max./Min. current
I1, I2, I3; IN, Iavg, Imax, Imin,… 0.2…1.2 x In 0.5
Ground fault
% IG 0.2…1.2 x In 0.5
Current unbalance
I1 Unb, I2 Unb, I3 Unb; IN Unb,
Max Unb I
– –
Phase-phase and Min/Max voltages
U12, U23, U31, Uavg 120 V - 690 V 0.5
Phase-neutral and Min/Max voltages
V1N, V2N, V3N, Vavg 70 V - 440 V 0.5
Unbalance
U12 Unb, U23 Unb, U31 Unb,
V1N Unb, V2N Unb, V3N Unb,
Max Unb U, Max Unb V
0.8…1.2 x Vn
–
Frequency f 45 Hz - 65 Hz 0.02
Power
P total, P per phase, Q total, Q
per phase, S total, S per phase
0.05…1.2 x In 1
Active energy
EaIn, EaOut, Ea Abs, Ea, EaIn
EaOut
0.05…1.2 x In 1
Reactive energy ErIN, ErOut, Er Abs, Er 0.05…1.2 x In 2
Apparent energy Es 0.05…1.2 x In 1
Average powers over interval
(Demand powers)
P Dmd per phase, P Dmd Total,
Q Dmd per phase, Q Dmd Total,
S Dmd per phase, S Dmd Total
0.05…1.2 x In 1
Max P Dmd per phase, Max
P Dmd Total, Max Q Dmd per
phase, Max Q Dmd Total, Max
S Dmd per phase, Max S Dmd
Total
Average currents over interval
(Demand currents)
I1 Dmd, I2 Dmd, I3 Dmd, IN
Dmd, Iavg Dmd, Max I1 Dmd,
Max I2 Dmd, Max I3 Dmd; Max
IN Dmd, Max I1 Dmd, Max I2
Dmd, Max I3 Dmd; Max IN Dmd
0.2…1.2 x In 0.5
Power factors
PF1, PF2, PF3, PFtot, Cos 1,
Cos 2, Cos 3, Cos tot
0.5 inductive to
0.8 capacitive
1
Voltage THD THDU (ph.-ph.),THDV (ph.-N) 0…20% 2
Current THD THDI per phase 0…200% 2