M210A1

Amplifier

The M210А1 Amplifier provides:

  • verification and calibration of low-power voltage transformers (LPVT) as part of any VT calibration system;
  • conversion of any secondary voltage of a traditional VT into a value equal to the nominal voltage of the reference VT.

    Description

    FEATURES AND BENEFITS

    • Continuous range of rated secondary voltages of verified LPVT
    • Continuous range of rated secondary voltages of verified traditional VT
    • High conversion accuracy
    • Simple use by intuitive user interface
    • Storage of individual voltage settings
    • Possibility of using with automated VT calibration system

     

    APPLICATIONS

    M210A1 is used by:

    • Manufacturers of LPVT and VT
    • Calibration Laboratories
    • Metrology Institutes

    Technical specification

    Input 1:
    Rated input voltage range (Uin1r)0,1 V … 4 V
    Input voltage resolution0,001 V
    Additional factors× 1/√3; × 1/3
    Rated operating frequency50/60 Hz
    Input impedance, represented as a parallel resistor-capacitor circuit2 МΩ ±5% || C ≤ 50 pF
    Input 2:
    Rated input voltage range (Uin2r)30 V … 245 V
    Input voltage resolution0,1 V
    Additional factors× 1/√3; × 1/3
    Rated operating frequency50/60 Hz
    Input impedance, represented as a parallel resistor-capacitor circuit2 МΩ ± 5% || C ≤ 50 pF
    Output:
    Rated output voltage range (Uoutr)30 V … 100 V
    Output voltage range0 … 120 V
    Output voltage resolution0,1 V
    Additional factors× 1/√3; × 1/3
    External burdenR ≥ 500 kΩ; C ≤ 5 nF
    Accuracy:
    Ratio error (Uoutr/Uinr)
    0,02·Uoutr ≤ Uout < 0,2·Uoutr
    0,2·Uoutr ≤ Uout < 0,8·Uoutr
    0,8·Uoutr ≤ Uout < 1,9·Uoutr
    ± 0,1 %
    ± 0,04 %
    ± 0,02 %
    Phase displacement
    0,02·Uoutr ≤ Uout < 0,2·Uoutr
    0,2·Uoutr ≤ Uout < 0,8·Uoutr
    0,8·Uoutr ≤ Uout < 1,9·Uoutr
    ± 5 min (± 0,15 crad)
    ± 2 min (± 0,06 crad)
    ± 1 min (± 0,03 crad)
    Power mains:
    Voltage
    Rated frequency
    100…240 V
    50/60 Hz
    Operating temperature
    Relative humidity    		0...40 °C
    up to 80 % non-condensing
    Size
    Weight    		245 × 135 × 325 mm
    5 kg

    Test arrangement

    CL – low-voltage measuring capacitor; CH – high-voltage measuring capacitor;
    CC – current comparator with automatic balancing.

    Fig.1 Test circuit for LPVT by use the Voltage Transformer Test Set M210/M211

    VTN – standard transformer
    Fig.2 Test circuit for LPVT by use the Comparator M100

    VTN – standard transformer; VTX– transformer under calibration
    Fig.3 Test circuit for traditional voltage transformers with different rated secondary voltages

    RELATED PRODUCTS

    M210/M211

    Voltage Transformer Test Set

    M410

    Electronic Voltage Burden

    M411

    Electronic Voltage Burden