User Manual

71
15. FUNCTIONAL CHARACTERISTICS
15.1. REFERENCE CONDITIONS
This table indicates the reference conditions of the quantities to be used by default in the characteristics indicated in § 15.3.4.
Parameter Reference conditions
Ambient temperature 23 ± 3 °C
Humidity (relative humidity) [45 %; 75 %]
Atmospheric pressure [860 hPa ; 1060 hPa]
Phase-to-neutral voltage [50 Vrms ; 1000 Vrms] without DC (< 0.5 %)
Standard current circuit input voltage
(Except FLEX type current sensors)
[30 mVrms ; 1 Vrms] without DC (< 0.5 %)
 A
nom
(1)
⇔ 1 Vrms
 3 × A
nom
(1)
÷ 100 ó 30 mVrms
Unamplified Rogowski current circuit input voltage
(FLEX type current sensors)
[11.73 mVrms ; 391 mVrms] without DC (< 0,5 %)
 10 kArms ⇔ 391 mVrms to 50 Hz
 300 Arms ⇔ 11.73 mVrms to 50 Hz
Amplified Rogowski current circuit input voltage
(FLEX type current sensors)
[117.3 µVrms ; 3.91 mVrms] without DC (< 0,5 %)
 100 Arms ⇔ 3.91 mVrms to 50 Hz
 3 Arms ⇔ 117.3 µVrms to 50 Hz
Frequency of electrical network 50 Hz ± 0,1 Hz or 60 Hz ± 0,1 Hz
Phase shift
0° (active power and energy)
90° (reactive power and energy)
Harmonics < 0,1 %
Voltage unbalance < 10 %
Voltage ratio 1 (unity)
Current ratio 1 (unity)
Voltages measured (not calculated)
Current sensors actual (not simulated)
Power supply Battery only
Electric field
< 1 V.m
-1
for [80 MHz ; 1 GHz[
≤ 0,3 V.m
-1
for [1 GHz ; 2 GHz[
≤ 0,1 V.m
-1
for [2 GHz ; 2,7 GHz]
Magnetic field < 40 A.m
-1
DC (earth’s magnetic field)
(1) The values of A
nom
are given in the table below.
15.2. NOMINAL CURRENT ACCORDING TO TYPE OF SENSOR
Current sensor
(except FLEX)
Nominal RMS current
(A
nom
) [A]
Lower limit of the reference range
(3 × A
nom
÷ 100) [A]
J93 clamp 3500 105
C193 clamp 1000 30
PAC93 clamp 1000 30
MN93 clamp 200 6
MN93A clamp (100 A) 100 3
E3N clamp (10 mV/A) 100 3
E3N clamp (100 mV/A) 10 0.3
MN93A clamp (5 A) 5 0.15
5 A adapter 5 0.15
Essailec
®
adapter 5 0.15