An overview,

Wireless secondary voltage drop/load tester is an intelligent wireless testing instrument designed and developed by our company to automatically test the secondary voltage drop/load of voltage transformers. It completely replaced the conventional secondary voltage drop/load tester, no longer lay a very long voltage test cable, to a large extent to avoid the occurrence of PT secondary short circuit accidents.

Two, technical indicators

1. Use environment

Ambient temperature: -10 ° C to 40 ° C

(2) Relative humidity: ≤80%

2. Measurement accuracy

The measuring accuracy of this instrument is grade 1.

δ F =± (1%× F ±0.01) (%)

Angle difference: δ δ=±(1%×δ±1) (分)

Conductance: G = + / - 1% (+ / - 0.01 x G) mS

Susceptance: delta = - (1% * delta plus or minus 0.01) mS

Load: S = - (1% * S + / - 0.1) VA

Resistance: R = + Ω (R + / - 0.1 (1%)

Reactance: X = + Ω (1% + / - 0.1 X X)

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

4. Measuring range and resolution of the instrument

5. Basic error

Ratio difference: ± (1% ratio reading ±0.01) %

Angle difference: ± (1% Angle reading ±1) minutes

Conductance: ± (1% conductance reading + no 1 word) mS

Susceptance: ± (1% susceptance reading + no 1 word) mS

6, insulation: ⑴, voltage, current input end of the insulation resistance of the housing ≥100M ω.

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

7, battery working time: full working time is more than 6 hours.

8. Volume:

Host: 32 cm * 24 cm * 13 cm

Extension: 32 cm * 24 cm * 13 cm

9. Weight:

Host: 2.5 Kg

Extension: 2 kg