PROVA 1660

Transformer Turns Ratio Meter

Availability: In stock
  • Measurements of 1Φand 3ΦTransformer/VT/CT Turns Ratio.
  • VT/PT ratio 0.8~10000, CT ratio 0.8~2000.
  • Graphical and Literal Illustration of Measurements and Connections with Large Back-lighted Dot Matrix 240 x 128 LCD. Display Test Data with Nameplate Transformer Values for Easy Interpretation.
  • Ten Test Frequencies (50~400Hz).
  • Display Turns Ratio, Deviation, Secondary Output, Excitation Voltage and Current, Phase Angle and Nameplate Transformer/VT/CT Values in one page for easy transformer quality interpretation.
  • Check for Live Test Points, Short Circuit, Open Circuit, and Reverse Polarity before Each Measurement. Message is displayed to Warn Users (But, checking is not performed once measurement starts).
  • Store 4096 Files of Transformer Nameplate Values (VT/PT/CT, 1Φ/3Φ, Test Frequency, Primary and Secondary Voltages or Ratio, RCF) and Measuring Data.
  • 9 types of 3Φ Windings Connections pre-installed for easy user selection.
  • Wireless Blue Tooth Communication with PC.
  • Select Filter to Remove Field Noise (Slow, Normal, Fast).
  • Disable or Enable Auto-Power-Off with Programmable Time.
  • Built-in calendar clock.
    Records with Date and Time Stamp.
  • Powerful Lithium Battery (3400mAH) with built-in Charging Circuit.
  • User Programmable RCF (Reference Correction Factor, 0.99~1.01) to Correct Accuracy within 1% Error.
  • Friendly File System for Easy On-site Data Retrieval and Nameplate Values Management.
  • PC Application Software included.
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    Transformer Turns Ratio Meter
    Transformer Turns Ratio Meter
    • Specification
    • Application

     

    Electrical Specifications:  

    Reference Conditions23± 5 (30 to 50% RH) range.

     Add 25ppm/ for 0° to 18 and 28° to 50 to all accuracy specifications.

     No external electrical or magnetic fields.

    Output current 150 mA for VT/PT and 50mA for CT.  Calibration cycle is 1 year. 

    Ratio Range (VT/PT)

    Autoranging0.8000 to 100001

    Accuracy (70Hz)

    Ratio Range

    Accuracy (% of Reading)

    0.8000 ~ 999.99

    ± 0.1%

    1000.0 ~ 4999.9

    ± 0.2%

    5000.0 ~ 10000

    ± 0.25%

    Ratio Range (CT)

    Autoranging0.8000 to 2000.0

    Accuracy (70Hz)

    Ratio Range

    Accuracy (% of Reading)

    0.8000 to 2000.0

    ± 0.5%

    Excitation Signal

    VT/PT Mode34Vrms max                 

           CT ModeAuto Level 0 to1A, 0.1 to 20Vrms

    Excitation Current     

    Display

                           Range0 to 1000mA                          

                   Accuracy:± (2% of Reading +2mA)

    Excitation Frequency (Hz)

    50, 55, 60, 70, 100, 120, 200, 240, 300, 400

    Display

    5” Large dot matrix LCD display (240*128) with backlight

    Power Source

    Rechargeable Lithium Battery, 3400mAh

    Battery Life

    Over 10 hrs of continuous operation. Battery life (%) indication

    Battery Charger

    Universal input (90 to 264Vrms input)

    Charging Time

    4 hrs

    Data Storage

    4096 Files Each (VTM, CTM, VTR, CTR, BMP)

    Date/ Time

    Battery-backed, Real-time Calendar clock

    Measurement Method

    ANSI / IEEE C57.12.90 and IEC 600076.1

    Operation Environment

    5 ~ 50, 85% RH

    Storage Environment

    -20 ~ 60, 75% RH

     Accessory 

    1. Test leads (set of 2) 

    2. Alligator clips (4pcs.) 

    3. Rechargeable lithium battery 

    4. User manual 

    5. AC adaptor 

    6. Power cord 

    7. Software CD & Manual

    8. Carrying bag

     

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