NP45-09 User’s Guide
47
Dips&Swells Vrms1/2,
Arms1/2,
capture up to 1000 events, include
date, time, duration, magnitude and phase mark, and
threshold is settable.
Harmonic
1-100, harmonic voltage, THD voltage, harmonic
current, THD current, interharmonic voltage,
interharmonic current
Power and energy
W
、
VA
、
var
、
PF
、
cos
Ф
、
tan
Ф
、
Vrms
、
Arms
、
kWh
、
kVAh
、
kvarh
Flicker
Pinst
、
Pst
、
Plt
Unbalance
Vneg, Vzero, Aneg, Azero, Vfund, Afund, Hz, V phase
angle, A phase angle
Transient Vrms,
Vcursor
Inrush current
Inrush current, Inrush duration, Arms1/2, Vrms1/2
System monitoring
Vrms, Arms, Harmonic voltage, Total harmonic
distortion voltage, Plt, Vrms1/2, Arms1/2, Vneg, Hz,
Swells, Dips, Interruption, Rapid Voltage Change. All
parameters are measured simultaneously according to
EN50160 standard.
Logger
User-defined to select more parameter, and record of
setting time interval
5.6 Measurement Range, Resolution, Accuracy
Voltage/Current/Frequency
Measurement
range
Resolution Accuracy
Vrms (AC+DC)
1~120Vrms
120~400 Vrms
400~1000Vrms
0.001Vrms
0.01Vrms
0.1Vrms
±0.1% of nominal
voltage
Vpk
1~1400Vpk 0.01Vpk
±0.5% of nominal
voltage
V(CF)
1.0~>2.8 0.01
±5%
Arms (current clamps error
not include)
10mV/A
1mV/A
65mV/1000A(AC)
0~150A
1~2000A
10~6000A
0.01A
0.01A
0.01A
±0.1%±0.1A
±0.1%±0.1A
±0.1%±0.2A
A(CF) 1~10
0.01
±5%
Frequency 50Hz nominal
42.5~57.5 0.01Hz
±0.01Hz
