Voltage Transformer Secondary Voltage Drop and Load Tester

1Voltage Transformer Secondary Voltage Drop and Load TesterFeatures

1Transformer testerAutomatically measure the secondary voltage drop and load of three-phase three wire or three-phase four wire voltage transformers.

2. Automatically calculate the ratio difference, angle difference, and comprehensive error of the three phases.

3. Automatically measure the secondary circuit load of voltage transformers and current transformers.

4. It can automatically detect and store measurement error data caused by test wires under various wiring methods, and automatically correct it in future tests.

5. Specially designed software correction function, which can achieve accuracy correction without hardware adjustment, and can be verified on-site by various levels of power testing and research departments.

6. Various electrical parameters are displayed on the same screen, and voltage, current, phase angle, power factor, active power, reactive power, and apparent power can all be measured; Can display waveform diagrams of various phase parameters.

7. Equipped with harmonic measurement function, it can measure the harmonic content of voltage and current below 32 times.

8. Built in large capacity rechargeable battery pack, which can be powered by the instrument's internal battery pack in the absence of 220V AC power outdoors. Equipped with a fast automatic charger, it can quickly charge the battery pack.

9. The function of indicating the percentage of remaining battery power is not simply a low power alarm.

10. Large screen, high brightness true color LCD display, fully Chinese character graphical menu and operation prompts for friendly human-machine dialogue, conductive silicone buttons for easier operation, wide temperature LCD with automatic contrast and brightness adjustment, suitable for winter and summer seasons.

11. Users can print out the results of the test data at any time through a micro printer.

12. The test result storage function can store 200 sets of test data.

13. Equipped with backend management software, storage records can be uploaded to the computer for unified management.

2、 Technical specifications of voltage transformer secondary voltage drop and load tester

1. Usage environment

(1) Environmental temperature: -10 ℃ to 40 ℃

(2) Relative humidity: ≤ 80%

2. Measurement accuracy

The measurement accuracy of this instrument is level 1.

Voltage: 0.5%

Current: 0.5%

Differential ratio: Δ f=± (2% × f+2% × δ) ± 0.01 (%)

Angle difference: Δ δ=± (2% × δ+2% × f) ± 1 (minute)

Conductivity: G=± (1% × G+1% × δ ± 0.01) mS

Dianna: δ=± (1% × δ+1% × G ± 0.01) mS

Load: S=± (1% × S ± 0.1) VA

Resistance: R=± (1% × R+1% × X ± 0.1) Ω

Reactance: X=± (1% × X+1% × R ± 0.1) Ω

3. Charging power supply: AC 176V~264V, frequency 45-55Hz

4. Measurement range and resolution of the instrument

test projectscopeminimum resolution

Voltage measurement range (V)40～120.0000.001

Current measurement range (A)0.005～60.0001

Difference value (%)-10.000～10.0000.001

Angle difference (ˊ)-600～600.000.01

Error value (%)-10.000～10.0000.001

Revision (%)-10.000～10.0000.001

5. Insulation: ⑴ The insulation resistance between the voltage and current input terminals and the casing is ≥ 100M Ω.

⑵ The input end of the working power supply is subjected to a power frequency of 2KV (effective value) between the casing, and the experiment lasts for 1 minute.

6. Battery working time: After being fully charged, the working time is greater than 6 hours.

7. Volume:

Host: 32cm × 24cm × 13cm

8. Weight:

Host: 2.5Kg