Portable Voltage Transformer Field Tester

The voltage transformer error tester has the function of measuring the voltage transformer error by the recursive method and measuring the voltage transformer error by the potential difference method, which is convenient for the on-site verification of the metering device.

The on-site verification of voltage or transformer does not require standard transformer, booster, load box, voltage control box, and can be achieved by using very simple test wiring and operation, which greatly reduces the work intensity and improves the work efficiency, and is convenient for on-site verification of transformer.

1: Error measurement part of low calibration high voltage transformer

① Accuracy of the whole machine: 1/3 of the error limit of the tested voltage transformer

② Test scope:

6kV/100V 10kV/100V 20kV/100V 35kV/100V

6kV/√3/100V/√3     10kV/√3/100V/√3      20kV/√3/100V/√3

35kV/√3/100V/√3             66kV/√3/100V/√3    110kV/√3/100V/√3

220kV/√3/100V/√3

③ Operating range of the tested voltage transformer: 80% to 120%

④ Secondary load: 0.0VA~300VA, COS φ=0.1~1.0

⑤ Accuracy range of the tested voltage transformer: 1.0, 0.5, 0.2, 0.1

⑥ Resistance and admittance measurement error ≤ 5.0%

   Measuring range: R: 0.00Ω～5.0Ω

   Y:  0.000mS～200.0mS

2: Voltage Transformer Calibration Instrument Part

① Basic error:

In-phase component: DX=(2 words X x 2%+Y x 2%)±±

DY=(X x 2%+Y x 2% 5 words)±±

X "," Y "- instrument display values

Five Words "- Quantification Error of Instruments

Dial indicator: Level 1.

Measurement range: f: 0.0000% to 200.0%

    δ: 0.000′～999.9′

② Rated working voltage: 100/3V, 100/V, 100V

③ Operating range of the tested voltage transformer: 20% to 200%

3: Instrument power consumption: 20VA

4: Instrument accuracy level: 0.05 level

5: Maximum external dimensions (cm): L46W35H13.5´´

6: Weight (kg): 11.0