PA920 (1-4 Channel Precision Multi-channel Harmonic Power Analyzer)


Brand: Vitrek
Model Series: PA920 Series
Categories: ,

About Product

The Vitrek PA920 Series Precision Multi-channel Harmonic Power Analyzer is actually three power analyzers in a single chassis with a single user interface.  These are called Virtual Power Analyzers (VPA) or Channels. Channels may be configured in any one (or none) of the 3 VPAs.  Each VPA may be configured for up to all channels installed and is independently configured for multi-channel wiring configuration, signal filtering, default measurement coupling, display results smoothing and significant digits, VA/VAR combine method and efficiency grouping.  Vitrek PA920 Series is the most powerful, accurate and flexible power analyzer available on the market today available with 0.024% power accuracy.  These new products provide faster sampling rates, bandwidth performance and greater harmonic frequency, yet still easy-to-use and affordable.

The PA920 power analyzers offer expanded power analysis options, and offers ultra high 0.024% power accuracy for all channels.  In addition, the PA920 provides easy channel selection for the user while offering 100 full precision readings per second and measurement bandwidths sufficient to handle 5 MHz waveforms.

Product Features

  • Most advanced power measurement platform with an unprecedented range of capabilities
  • Display screen: 7″ 800x480px 18bpp color LCD display with touchscreen user interface
  • High precision accuracy: 024%
  • Improved voltage and current self-heating adders
  • Modular design for up to four power measurement channel cards in any combination of 7 different channel card types
    • UT Channel Card: Ultra-Precision Twin Shunt (1, 30A) Channel Card
    • UX Channel Card: Ultra-Precision External Current Transducer Input Channel Card
    • BT Channel Card: High Bandwidth Twin Shunt (1, 30A) Channel Card
    • BX Channel Card: High Bandwidth External Current Transducer Input Channel Card
    • KT Channel Card: Kilovolt (1.6kVrms Continuous) Twin Shunt (1, 30A) Channel Card
    • KX Channel Card: Kilovolt (1.6kVrms Continuous) External Current Transducer Input Channel Card
    • MT Channel Card: Motor Transducer Channel Card (Slot 4 only)
  • Versatile screens: Power Data Screen, Custom Data Screen, Harmonics Screen, Scope View Screen, Vector Screen, History Screen, Cycle View Screen, Standby Power Screen
  • Standby Power Screen allows EN50564-2011 compliant low power measurements without the need for a computer
  • Supports a variety of compliance and environmental performance standards
    • EN60034-2-1:2014 (motor drives)
    • EN50564:2011 (standby power)
    • EN61000-3-2 and 3-12 and 4-7 (harmonics emissions)
    • RTCA DO-160/E/F/G (avionics)
    • Boeing 787B3-0147
    • Airbus ABD0100.1.8 (A380) and ABD0100.1.8.1 (A350)
  • Ground isolation: 1000V/CAT II, 600V/CAT III, 300V/CAT IV
  • Effective sampling rate for analysis of periodic signals within a measurement period is 384MS/s
  • Up to 3 different Virtual Power Analyzers (VPAs) may be configured for three phase measurements or input/output efficiency tests so there is no need to interconnect separate units in order to make synchronous or non-synchronous group power measurements
  • VPA efficiency grouping: Power totals for IN, MIDDLE and OUT efficiency groups, the power loss between any pair of groups and the percentage efficiency between any pair of groups
  • VPA Multi-Channel Wiring: Each VPA may be configured as 2ø3w (2 Ch), 3ø3w (2 Ch), 3ø3w (3 Ch), 3ø4w (3 Ch)
  • Highest precision measurements with industry leading noise-floor and linearity and up to 100 readings per second and measurement bandwidths sufficient to handle 5MHz signals
  • Up to 500 Harmonics at 400Hz, meets Airbus avionics harmonics measurement criteria. Bar graph also features fingertip selectable numeric amplitude and phase data
  • Built-in Data Logger: Logs up to 16 selectable data results to USB thumb drive or internal data storage. Intervals from 10ms to 100 hours with optional time/date stamps
  • Front Panel USB Drive Interface for portable flash drives or hard disc drives
    • Data log to a file in CSV or binary formats at up to 500 per second
    • Export a tabulation of historically saved data – needs no prior knowledge of the data to be recorded
    • Save an image of the screen – great for engineering record keeping
    • Import and export configurations – great for sharing a configuration between units or having your own configuration
    • Import and export harmonics limits – makes it easy to switch between different harmonics requirements
    • Export CSV format tabulations of measurement results, harmonics, spectrum, or scope waveforms – makes generating your own reports easy without mistakes
  • Available Multi-Unit (MU) connection available to combine multiple PA920 units to enable you to make measurements with up to thousands of channels
  • Optional MT type motor channel provides analog or digital speed, direction and torque inputs for mechanical measurements
  • Connectivity: Ethernet, High Speed Serial and USB (client) control interfaces, optional GPIB interface
  • CE mark certified to EN61010
  • Country of Origin: Made in USA

Product Functions

  • Each virtual power analyzer may be configured as having one of the following synchronizations to the other virtual power analyzers
    • Totally asynchronous to the other virtual power analyzers in all aspects
    • Fully synchronous to another virtual power analyzer (identical sampling, measurement period and fundamental frequency)
    • Totally asynchronous to the other virtual power analyzers but using the fundamental frequency established in another virtual power analyzer
  • VPA Multi-Channel Wiring: Each VPA may be configured as 2ø3w (2 Ch), 3ø3w (2 Ch), 3ø3w (3 Ch), 3ø4w (3 Ch)
  • Front panel results screens
    • Power Data Screen
      • This displays V, A, W, VA, VAR and PF data for any selected channel or group of channels known as a Virtual Power Analyzer™ (VPA). Up to three different VPAs can exist in a single PA920. In addition to the primary data, peak readings, phase, CF and other parameters are also available.  Integrateddata results (WHr) can also be controlled and viewed from the Power Data Screen (See photo section)
    • Custom Data Screen
      • For users with unique data requirements, Custom Data Screens can be built with a spreadsheet application and downloaded to the PA920 via interface or USB drive (See photo section)
    • Harmonics Screen
      • To meet advanced power harmonics requirements, the PA920 displays up to 500 harmonics even at aviation power frequencies. The chart can be set to show linear, relative linear, logarithmic or relative logarithmic amplitudes.  Additionally, eight harmonics can be selected for numeric display of amplitude and phase by touching the harmonic bar of interest.  The user may also import harmonic limits, which when enabled will show out of tolerance harmonics in red above the limit line (See photo section)
    • Scope Screen
      • Scope View offers waveform acquisition and analysis similar to a digital scope. Up to six signals can be displayed, each havinguser selectable scaling, offset and color. Time-base, trigger and trigger position are all user selectable. However, with amplitude accuracies as high as 0.03% – you are unlikely to find any other scope with this high level of precision (See photo section)
      • Cycle View represents a single cycle of the voltage and/or current periodic waveforms. The waveforms in photo section represent a full 10V square wave in blue and a 50:1 zoomed in view in red. Since the user sets amplitude and scaling – the result is an almost unlimited ability to amplitude zoom to expose fine detail. The sampling is forced to be asynchronous to higher order harmonics which leads to an effective sampling rate of 384MSPS (See photo section)
    • Vector View
      • A polar chart graphically displays the fundamental voltage and current vectors for the selected channel or VPA. For multiphase VPAs, the inter-phase voltages andnon-measured neutral phase vectors are displayed. The user may enable the display of and select the color of each vector up to a maximum of 10 (See photo section)
    • History Screen
      • The PA920 automatically maintains a continuous historical record of all non-harmonic measurement results and selected harmonics. Up to four user-selectable parameters can be graphically displayed using the History screen. The user can display the entire recorded period up to 397 days or zoom in as far as 1/64th of the total span. This provides an almost unlimited ability to amplitude zoom and includes a cursor which may be moved throughout the period with a touch of the screen (See photo section)
    • Standby Power Screen
      • The STBY POWER Screen gives you the ability to configure, start/stop, and view the results of low power measurements in accordance with EN50564:2011 para. 5.3.2, which is the recommended method for all low power measurements. The STBY POWER screen can be selected for view from any of the Main Data Screens by pressing the STBY POWER button. The PA920 has the ability to perform low power measurements independently in each VPA, so a single PA920 can perform up to 3 independent low power measurements. You select which VPA is being configured, controlled and viewed by using the VPA button (the leftmost across the top of the screen) (See photo section)
  • Modular design means flexibility. Modular design for up to four Power Measurement Channel Cards in any combination of 7 different Channel Card types
    • UT Channel Card: Ultra-Precision Twin Shunt (1, 30A) Channel Card
    • UX Channel Card: Ultra-Precision External Current Transducer Input Channel Card
    • BT Channel Card: High Bandwidth Twin Shunt (1, 30A) Channel Card
    • BX Channel Card: High Bandwidth External Current Transducer Input Channel Card
    • KT Channel Card: Kilovolt (1.6kVrms Continuous) Twin Shunt (1, 30A) Channel Card
    • KX Channel Card: Kilovolt (1.6kVrms Continuous) External Current Transducer Input Channel Card
    • MT Channel Card: Motor Transducer Channel Card (Slot 4 only)
  • Mechanical channel
    • CH4 can be an optional mechanical MT type channel. This provides analog (DC voltage) or digital speed, direction and torque inputs for the measurement of mechanical motor or generator data

Product Application

  • AC to DC power supplies (single or multiple outputs)
  • DC to DC power supplies (single or multiple outputs)
  • DC or fixed frequency AC supplied variable or fixed speed motor drives
  • Power transformers (single or multi-phase)
  • Lighting ballasts (most types)
  • Standby or backup power supplies (AC or DC)
  • Photovoltaic power generators (DC-in; DC- or AC-out)
  • LED and HID lighting
  • Solar panel energy output
  • Efficiency testing on inverters
  • PWM motor drive systems on electric vehicles
  • Mechanical motor/generator applications

Standard Accessories

  1. LAN Interface
  2. RS232 Interface
  3. USB Interface
  4. H500: Increases Capability up to 500 Harmonics
  5. EN: Adds Built-in EN61000 Compliance Computations
  6. MU: Multi-unit Connectivity
  7. NIST Calibration Certificate Without Data for All Channels
  8. Operation Manual
  9. Power Cable

 

Product Options

  1. PA921UT: PA920 Series Power Analyzer with a Single Ultra-Precision UT Channel Card
  2. PA922UT: PA920 Series Power Analyzer with Two Ultra-Precision UT Channel Cards
  3. PA923UT: PA920 Series Power Analyzer with Three Ultra-Precision UT Channel Cards
  4. PA924UT: PA920 Series Power Analyzer with Four Ultra-Precision UT Channel Cards
  5. UT Channel Card: Ultra-Precision Twin Shunt (1, 30A) Channel Card
  6. UX Channel Card: Ultra-Precision External Current Transducer Input Channel Card
  7. BT Channel Card: High Bandwidth Twin Shunt (1, 30A) Channel Card
  8. BX Channel Card: High Bandwidth External Current Transducer Input Channel Card
  9. KT Channel Card: Kilovolt (1.6kVrms Continuous) Twin Shunt (1, 30A) Channel Card
  10. KX Channel Card: Kilovolt (1.6kVrms Continuous) External Current Transducer Input Channel Card
  11. MT Channel Card: Motor Transducer Channel Card (Slot 4 only)
  12. LPA-1: Universal Load Power Adaptor
  13. HC-7X: Hard Carrying/Shipping Case with Die Cut Foam
  14. RM-7: 4U (7”H) 19” W Rack Mount Kit
  15. GP-900: GPIB Interface in Lieu of Standard Ethernet, Serial and USB
  16. ISO-CALN-C3: PA920 Channel Card ISO 17025 Cal with Data (with Purchase)

Related Catalog

PA910_PA920datasheet

Our Company

Miko, established in 1980, is a leading instrumentation distributor in Hong Kong and China.

Over the years, we have been fully engaged in the sales and marketing of electronic T&M instruments in the territory. Our market sector coverage includes telecommunication, power, data communication, audio, broadcasting and education.

Related products