VITREK PA920

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Power Analyzer -Vitrek PA920 (Ultra-High Accuracy, High Voltage)

Leading industry accuracy and bandwidth for power analysis, with high voltage tolerance enabling ultra-precise measurement and analysis.

  • High Accuracy and Low Noise: Industry-leading precision with minimal noise interference.
  • Harmonic Measurement: Capable of measuring up to 500 harmonics, meeting aerospace standards.
  • High-Resolution Touchscreen: Large, high-resolution display showing all key information with a user-friendly interface.
  • Built-in Data Logger: Records up to 16 selectable data points.
  • Customizable Display: Fully customizable display settings (Custom Data), such as parameters, font size, color, and location.
  • Time Base and Trigger Settings: Enables capture of surge currents with oscilloscope-like functions.
  • Vector Display Function: Displays up to 10 voltage and current vectors.
  • Historical Data Logging: Automatically records continuous measurement data.
  • EN50564:2011 Compliance: Supports precise testing in adherence with power measurement standards.
  • High Sampling Rate: Enables detailed analysis of periodic signals.
  • Modular Four-Channel Design: Supports flexible combinations of modules for various specifications.
  • Hot-Swappable Modules: Modules can be swapped without recalibration.
  • Virtual Power Analyzer (VPA): Allows synchronized power measurement across multiple input channels.
  • VPA Efficiency Comparison: Shows power loss and efficiency percentage between input groups.
  • Ethernet (LAN) & USB Connectivity: Allows for data logging, external connections, and network integration.
  • Multi-Device Setup: Optional modules support measurement across hundreds of channels simultaneously.
  • Front Panel USB Port: Enables easy data management and recording.
  • CE Certified
  • Power Measurement Accuracy: Up to 0.024%.
  • Voltage Measurement Accuracy: Reaches an impressive 0.015%, with a bandwidth of 4.5 MHz (3dB).
  • Voltage Tolerance: Maximum withstand voltage of 1625 Vrms.
  • Current Measurement Range and Accuracy: Directly measures up to 32 Arms with accuracy as high as 0.018%. The current bandwidth is 5 MHz (3dB).
  • X-Type Module: Designed to connect with voltage feedback current transformers (CTs).

Harmonics

Displays up to 500 harmonics even in aerospace-specific power frequencies. Harmonics can be configured to display amplitude in linear, relative linear, logarithmic, or relative logarithmic scales.

You can select up to 8 specific harmonics for amplitude and phase measurements by directly touching the harmonic bar. Harmonic limits can also be imported, highlighting any exceeding the set thresholds.

 

Power Data

With a single touch, view data for voltage (V), current (A), power (W), apparent power (VA), reactive power (VAR), and power factor (PF) for any channel or virtual power analyzer (VPA) group.

Additional parameters such as peak values, phase, crest factor (CF), and energy consumption (WHr) are also available. Excel-compatible spreadsheet functions allow for creating custom data screens, which can be uploaded via interface or USB.

 

Scope View

Offers oscilloscope-style waveform capture and analysis. Displays up to 6 signals, with options for scaling, offsets, and color customization for each signal.

Time base, triggers, and trigger positions are all configurable for precise capture. With amplitude accuracy reaching 0.03%, this surpasses typical oscilloscope measurement accuracy.

 

Cycle View

Visualizes waveforms for voltage and/or current during a single cycle. High-resolution displays support tailored amplitude and zoom adjustments, showcasing intricate waveform details. The effective sampling rate reaches 384 MSPS, independent of harmonic synchronization.

 

Vector

Presents voltage and current vectors on a polar chart for selected channels or VPAs.

For multi-phase VPAs, interphase voltages and unmeasured neutral phase vectors are displayed. Up to 10 vectors can be shown simultaneously, with customizable colors.

 

History

Automatically maintains all non-harmonic measurement results and selected harmonic data as continuous historical records. The HISTORY screen can graphically display up to four selected parameters.

The recording period spans up to 397 days, with zooming capability down to 1/64 of the total span for detailed analysis. Data navigation is highly intuitive, allowing cursors to move across the entire dataset using the touchscreen.

 

Standby Power Measurement

Built-in function for standby power testing compliant with EN50564:2011 (replacing IEC62301). Begin measurement via the STBY POWER button, with all results neatly displayed on a single screen. These results can also be saved as image files to USB for reporting.

Supports all measurement methods, minimum test time, and data logging as specified by EN50564:2011. The PA920 can perform standby power measurements independently across all configured VPA channels.

 

Flexible Modular Design

The modular architecture provides the best balance of performance and budget. Each main unit supports four module slots, allowing flexible combinations of different module types.

The design allows for variable input current ranges, ensuring each module adapts to specific measurement needs.

X-Type Module
Provides optimal compatibility with external shunts and current sensors.

 

Key Features

  • Industry-leading power accuracy and bandwidth, with high-voltage tolerance, suitable for applications in electric vehicle and emerging energy industries.
  • High precision and industry-leading low noise.
  • Capable of measuring up to the 500th harmonic, meeting avionics harmonic measurement standards. The histogram allows direct touch access to amplitude and phase data.
  • Large high-resolution touchscreen displays all the information you need, while an intuitive touch interface lets you start testing more quickly.
  • Modular design enables flexible combinations of three different channel card types.
  • Built-in data recorder – record up to 16 selectable data results to USB or internal storage. Recording intervals range from 10ms to 100 hours.
  • Customizable measurement information display – users can select colors, font size, position, and measurement parameters to display.
  • Equipped with timebase and trigger settings – similar to an oscilloscope, allowing capture of events such as inrush current.
  • Vector display functionality – capable of showing up to 10 fundamental voltage and current vectors.
  • History recording – like a DVR, it automatically maintains a continuous history of measurement data. Users can view or download any data from this record.
  • Compliant with EN50564:2011 testing, preserving all necessary data within a single screen.
  • High effective sampling rate – suitable for analysis when measuring cyclical signals.
  • Supports configuration of up to three different Virtual Power Analyzers (VPAs) for three-phase measurements or input/output efficiency testing, eliminating the need for separate power analyzers to achieve synchronized power measurements.
  • VPA efficiency comparison features – includes the total power sums for IN, MIDDLE, and OUT, the power losses between groups, and the efficiency percentages across groups.
  • VPA multi-channel wiring configurations – each VPA can be configured as 2ø3w (2 channels), 3ø3w (2 channels), 3ø3w (3 channels), or 3ø4w (3 channels).
  • Supports Ethernet and USB (client) control interfaces.
  • Optional multi-unit module (Option MU) connectivity allows multiple PA900 units to be combined for measurements across thousands of channels.
  • Front-panel USB interface – for data recording, "screen capture" functionality, and easy import/export of display/measurement settings and customized data screens.
  • MT channel card – used for inputting motor torque and speed measurement results.
  • CE certified.

Specifications

Model Description
PA921UT PA920 Series Power Analyzer with a Single Ultra-Precision UT Channel Card
PA922UT PA920 Series Power Analyzer with Two Ultra-Precision UT Cards
PA923UT PA920 Series Power Analyzer with Three Ultra-Precision UT Cards
PA924UT PA920 Series Power Analyzer with Four Ultra-Precision UT Cards
PA920 Ultra-Precision Power Analyzer Mainframe – 4 Channel Capacity
UT Ultra-Precision Twin Shunt (1, 30A) Channel Card
UX Ultra-Precision External Current Transducer Input Channel Card
BT High Bandwidth Twin Shunt (1, 30A) Channel Card
BX High Bandwidth External Current Transducer Input Channel Card
KT Kilovolt (1.6kVrms Continuous) Twin Shunt (1, 30A) Channel Card
KX Kilovolt (1.6kVrms Continuous) External Current Transducer Input Channel Card
MT Motor Transducer Channel Card (Slot 4 only)