Kikusui KHA3000, Руководство по эксплуатации, Страница: 355 / 392

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KHA3000
355
Specifications
Specifications
Measurement and Display Items
Voltage Measurement Function
Item Specifications
Voltage Real effective value and peak value (+ peak and - peak)
Current Real effective value and peak value (+ peak and - peak)

display Voltage

Vrms Single-phase three-wire: (L1 Vrms +L2 Vrms)/2
Three-phase three-wire,Three-phase four-wire: (L1 Vrms +L2 Vrms
+L3 Vrms) /3
Current

Arms Single-phase three-wire: (L1 A rms +L2 Arms)/2
Three-phase three-wire,Three-phase four-wire: (L1 Arms +L2 Arms
+L3 Arms) /3
Apparent power

VA
Single-phase three-wire: L1 VA +L2 VA
Three-phase three-wire:
(L1 VA +L2 VA +L3 VA) × ( /3)
Three-phase four-wire: (L1 VA +L2 VA +L3 VA)/3
Real power

W Single-phase three-wire: L1 W +L2 W
Three-phase three-wire: L1 W +L3 W
Three-phase four-wire: L1 W +L2 W +L3 W
Reactive power

var
Single-phase three-wire: L1 var +L2 var
Three-phase three-wire: L1 var +L3 var
Three-phase four-wire: L1 var +L2 var +L3 var
THD (total harmonic distortion) Effective value ratio of all the harmonic components from the 2nd to
the 40th order against the effective value of the fundamental
components current
THDI (total harmonic distortion) Effective value ratio of all the harmonic components from the 2nd to
the 40th order against the effective value of the current
PWHD (partial-weighted harmonic
distortion) Effective value ratio of all the harmonic components from the 14th to
40th order, which are weighted according to the order, against the
effective value of the fundamental components
Item Specifications
Range 150 V/300 V/600 V
Allowable crest
factor 150 V and 300 V
range
2
600 V range
2
*1
*1. Up to
±
900 Vpeak
Display item TrueRMS and ± peak
Accuracy
*2
*2. Accuracy is not specified for
±
Peak. PLL is in the Lock state, in the effective input range, and with anti-
aliasing filter cutoff frequency 6 kHz. Specified for the ambient temperature of 18
°C
to 28
°C
and relative
humidity of 20 % to 80 % (without condensation). When scaling is used, the voltage range shown on the
display is the "range" value.
± (0.4 % of rdng+0.04 % of range)
Resolution
(RMS/Peak) 150 V range 0.01 V/0.01 V
300 V range 0.01 V/0.02 V
600 V range 0.01 V/0.04 V
Display range
(RMS/Peak) 150 V range 120 % of the range/213 % of the range
300 V range 120 % of the range/213 % of the range
600 V range 105 % of the range/151 % of the range
Effective input range 60 % to 110 % of the range
Excess input display “ Over ” is displayed when the ± peak value or RMS value exceeds
the display range.
Fundamental frequency range 45 Hz to 65 Hz
3