The NEO PQA 8000 reflects our understanding of power grid applications of today – the most complete and reliable mobile Analyzer you find on the market. Multi-Touch, 4 hours mobile operation and complying with Power Quality Standards and Grid Codes your measurement application requires. Class A++ Power Quality Analyzer for measurements and analyses way beyond EN50160 and Class .
THE ONLY INSTRUMENT IN THE WORLD MEASURING SUPRAHARMONIC CURRENTS AND VOLTAGES UP TO 500 kHz
HARDWARE
Class A ++
124kS/s or 1MS/s
0.05%
18bit / 24bit
0.5mA to 150kA
CAT IV 600V
PC with Multi-Touch and battery pack
additional input signals, Interfaces, AC&DC power, etc.
SOFTWARE
Harmonics, Inter- Supraharmonics, THD
WORLD LEADING
Recorder, Waveform, FFT, Vector, Table, etc.
Resonances, Phase Angle Jumps, etc.
Waveform & Disturbance Trigger
1/2 Period storing & triggering
and RoCoF
EN50160, IEEE519, IEC61000-2-4, etc.
Conventional PQ Analyzers, even if they are Class A certified, are not sufficient for modern measurement applications. We use the best available components to ensure the highest safety category and also the highest accuracy. NEO instruments offer high bandwidth (up to 1 MHz) and correct the frequency dependent behavior of current & voltage sensors as well as integrated electronics to achieve the best possible measurement results
All current sensors offered by NEO Messtechnik are industry proven for different applications. We use and improve on the best available sensors in the market.
FREQUENCY DEPENDENT CALIBRATION
The NEO sensor integration calibrates each sensor over a wide frequency bandwidth and corrects frequency dependent phase shift and amplitude damping. This allows for high precision from DC to high-frequency measurements.
MEASUREMENT RANGE DEPENDENT CALIBRATION
In addition, the sensors will calibrated for each measurement range using multiple points. The calibration will typically cover points from 1% to 100% of the nominal measurement range. This will improve the accuracy and precision, especially at low current (e.g., 1% of nominal measurement range).
Overvoltages from power lines down to factories can be higher than normal operating voltages. To avoid any kind of electrical accident, NEO Messtechnik emphasizes the importance of a safe instrument design. For example, the high-voltage inputs of the PQA 8000 instrument (CAT IV 600V) are isolated up to 6kVp while maintaining high precision (0.05%) and high sampling (up to 1MS/s). This is world-leading technology.
The instrument has a clear structure that
shows schematics with explanations.
During measurements the user can define widgets such as Scopes, Vector Scopes, Harmonic FFTs, Tables, and Recorders.
Sophisticated functions include PQ Data, Transients, Disturbances, and Alarms.
The instrument can automatically generate reports and professional documentation. The user can create reports that include all relevant information (location, comments, company logo, etc) directly on-site or during post processing. PDF reports that are saved on the instrument are always available and can be shared directly via email.
Data can be exported into CSV, XLS, PDF, Comtrade, and PQDiff.
The instrument uses Microsoft Windows© as the operating system. Programs such as Microsoft Excel, Word or Matlab can be added as well as Email messaging services.
4x Voltage Input 1600V DC
4x Current Input (Rogowski, Clamp)
CAN / RS485
4x Voltage Input 1600V DC
6x Current Input (Rogowski, Clamp)
2x Analog Input (± 10V)
CAN / RS485 / DIO
4x Voltage Input 1600V DC
8x Current Input (Rogowski, Clamp)
CAN / RS485 / DIO
according to IEC 61000-4-30 Ed.3 and IEC 62586
Harmonics, Interharmonics and THD:
Class A
Higher Frequencies and Supraharmonics:
2 – 9 kHz (200 Hz band)
2 – 500 kHz (2 kHz band)
Symmetrical Components & Unbalance:
Class A ((Pos-, Neg- and Zero Sequence))
Flicker (PST, PLT, Pinst) and RVC:
Class A
.
Voltage Events:
Class A (dip, swell, interruption – time, extrema, length)
Frequency:
10 sec, AVE, MIN, MAX
Voltage, Current:
RMS, AVE, MIN, MAX, ½ Period-values, 200ms, 10s, 10min
Time Synchronisation:
Class A
Power Calculation:
P, Q, S, PF, cos phi, D, DH, QH
Frequency:
10 sec, AVE, MIN, MAX
Voltage, Current:
RMS, AVE, MIN, MAX, ½ Period-values, 200ms, 10s, 10min
Power Calculation:
P, Q, S, PF, cos phi, D, DH, QH
Energy:
Total, positive, negative (P, Q, P+, P-, Q+, Q-)
Efficiency:
DC / AC, U-I Curve for PV
Wiring:
DC, 1-Phase, 2-Phase, 3-Phase Star and Delta
MIN, MAX, RMS, AVE:
U, I, P, Q, S, f, PF, phi, THD, Harmonics, Interharm., Unbalance, etc.
ENVELOPE / WINDOW:
U, I
DELTA:
dU, dI, df, dP, etc.
DERIVATE (RATE OF CHANGE):
dU/dt, df/dt etc. … per ms, number of periods or half-period
VOLTAGE SIGNALLING:
Threshold
EN50160:
Trigger on any EN50160 parameter (Max, Quantil)
1/2 PERIOD TRIGGER:
U, I, P, Q, S, f, PF, phi, THD, Harmonics, Interharm., Unbalance, etc.
SYMMETRICAL COMPONENTS:
Positive-, Negative-, Zerosequence
Phasor Measurement Unit (PMU)
according to IEEE C37.118: Total Vector Error 0.01% (typ.), Angle Error 0.003°(typ)
RATE OF CHANGE FREQUENCY (ROCOF)
POWER QUALITY, HARMONICS, FLICKER:
IEC61000-4-30 Ed. 3 Class A / IEC61000-4-7 / IEC61000-4-15 / IEC62586-2 Ed. 2 / IEC62586-1
PUBLIC GRID, RAILWAY AND INDUSTRY
EN50160 / EN50163 / IEC61000-2-2 / IEC61000-2-4 (Class 1; 2; 3) / IEEE519 / IEEE 1159 / IEC61000-2-12 / NRS048
WIND POWER, RENEWABLES AND GRID CODES
IEC61400-21 / IEC61400-12 / FGW-TR3 / VDE N-4105 / VDE N-4100 / VDE N-4110 / D-A-CH-CZ / BDEW / ROCOF / IEEE C37.118-2005 (PMU)
MOTORS, TRANSFORMERS AND ELECTRICAL EQUIPMENT
IEC60034 / IEC 60076-1 / IEC61000-3-2 / IEC61000-3-3 / IEC61000-3-11 / IEC61000-3-12
Analysing the effects of Supraharmonics asks for Power Quality Analyzer that cover a frequency range up to 500 kHz. Classical PQ Analyzers present problems because of their limited bandwidth. Typically they can measure up to the 50th Harmonics (2.5kHz), but cannot detect higher emissions of voltage and currents. By design, they are not able to be used in the troubleshooting process at all.
In this Application Note, we outline the complexity and shortcomings of traditional measurement approaches we often see out in the field. Fortunately, all these problems do not concern engineers with the appropriate measurement equipment. Our customers appreciate the PQA8000H in troubleshooting Supraharmonic emissions, where its strengths really come into play ..
