A
17
App
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ndix
Weighting Filter
You can select a weighted filter for either a 230 V lamp system or a 120 V lamp
system.
Statistical
Processing
Statistics on flicker are compiled by applying the cumulative probability function
(CPF) to 1024 logarithmic divisions of instantaneous flicker values Pinst in the
range from 0.0001 to 10000 P.U. to obtain cumulative probabilities P0.1, P1s,
P3s, P10s, and P50s.
Short Interval
Flicker Value
Pst
This indicates degree of perceptibility (severity) of flicker measured over a 10-
minute period.
Calculation:
Pst =
P50s = (P30+P50+P80)/3
P10s = (P6+P8+P10+P13+P17)/5
P3s = (P2.2+P3+P4)/3
P1s = (P0.7+P1+P1.5)/3
P0.1 is not smoothed
Long Interval
Flicker Value
Plt
Indicates the degree of perceptibility (severity) of flicker determined from succes-
sive Pst measurements over a 2-hour period.
To calculate a moving average of Pst, the displayed value is updated every 10
minutes.
Calculation:
Plt =
0.0314P0.1+0.0.0.0.08P50s
Σ
(Psti)
3
N
3
HIOKI PQ3198A961-03
Содержание PQ3198
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Страница 6: ...Contents iv HIOKI PQ3198A961 03...
Страница 20: ...Usage Notes 14 HIOKI PQ3198A961 03...
Страница 44: ...2 3 Display Items and Screen Types 38 HIOKI PQ3198A961 03...
Страница 58: ...3 8 Turning the Power On and Off Setting the Default Language 52 HIOKI PQ3198A961 03...
Страница 102: ...5 8 Factory Settings 96 HIOKI PQ3198A961 03...
Страница 116: ...6 4 Displaying Harmonics 110 Holding the display Hold Measured values and waveforms will be held HIOKI PQ3198A961 03...
Страница 198: ...12 4 Downloading Recorded Data to Computer 192 HIOKI PQ3198A961 03...
Страница 264: ...14 4 Disposing of the Instrument 258 HIOKI PQ3198A961 03...
Страница 296: ...A32 HIOKI PQ3198A961 03...
Страница 299: ...Index Index 3 Index Wiring 73 Z Zero adjustment 53 Zero phase A28 HIOKI PQ3198A961 03...
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