EM Test DPA 500N
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Description
Harmonics and interharmonics are caused by modern electronic power conditioning modules. Such, mostly non-linear, modules to control loads and to reduce power consumption is the source of voltage at unwanted frequencies superposed on the supply voltage.
Voltage fluctuations caused by varying load currents may influence the luminance or the spectral distribution of lighting systems. The impression of the unsteadiness of visual sensation induced by this light stimulus is called flicker. The DPA500N harmonics and flicker analyzer is used for single phase applications.
- Specifications
- Measuring System
- Input channels
- 2 (1x current & 1x voltage)
- Frequency range
- 15Hz - 3,000Hz
- A/D converter
- 16 Bit
- Controller
- Embedded processor Pentium 200MHz
- Signal processor
- Motorola DSP
- Memory
- Internal hard disk
- Category
- Class I as per IEC/EN 61000-4-7
- Voltage Input
- Input range
- 10V - 530V rms
- Overload
- 4,000V peak
- Accuracy
- Better than 0.4% of reading
- Current Input
- Input range internal
- 16A continuous, 50A short time
- Accuracy internal
- Better than 0.4% of reading Better than 0.05% rel. to 16A
- Input range external
- Depending on CT model used. With optionally delivered CT max. 140A
- Accuracy external CT
- Related to 16A 2 turns better than 0.8% 5 turns better than 0.6%
- General Data
- Temperature
- 0C - 40C
- Rel. humidity
- 10% - 90%, non-condensing
- Power supply
- 85V - 255V, 47Hz - 63Hz
- Power
- Max. 50W
- Dimension
- 19" 3HU: 133mm x 449mm x 500mm
- Weight
- 13kg
- Insulation
- Input to case 3kV rms
- Interface
- USB for control and data transfer
- Harmonics Analysis
- As per
- IEC/EN 61000-3-2 Ed5.1 JIS C 61000-3-2 (2019) IEC/EN 61000-3-12 with ext. CT
- Design as per
- IEC/EN 61000-4-7 Ed.2.1 and IEC/EN 61000-4-7 Ed.1
- Harmonics
- 1st - 50th order
- Grouping
- IEC/EN 61000-4-7 for Interharmonics
- Synchronization
- PLL; accuracy better than 0.005%
- Measuring window
- Rectangular window with 8, 10, 12 or 16 periods)
- Algorithm
- FFT
- Smoothing filter
- 1st order 1,5s digital low pass filter (on/off), selectable
- Anti-aliasing filter
- > 90dB
- Measurement duration
- More than 30 hours, limited by the capacity of the hard-disk (approx. 1MB/min of measuring data)
- Display
- Vrms, Irms, Ipeak, Vpeak
- Harmonics
- V, I, Phase, P, Q, S (2nd - 50th order)
- Power information
- P, Q, S, Power factor, THD(V), THD(I), Crest factor(V), Crest factor(I)
- Flicker Analysis
- As per
- IEC/EN 61000-3-3 Ed3 A2
- Design as per
- IEC/EN 61000-4-15 230V , 50/60 Hz and 120V , 50/60 Hz
- Flicker impedance (built-in)
- Line: 0.24ohm + j0.15ohm
- Neutral: 0.16ohm + j0.10ohm
- Accuracy Pst and Plt
- Better than 5%
- Accuracy dmax, dc, dt
- Better than 5%, according IEC 61000-4-15
- Flicker data
- Pst and Plt, Vrms, dmax, dc, dt P50%S, P10%S, P3%S, P1%S, P0.1%
- Maximum values
- Pst, dmax, dc, dt
- Observation period
- Min. 1min, selectable