AL303 Mutual inductor calibrator

Implementation of standards:
JJG169-1993, JJG314-1994

Features:
1, with S-level measurement instrument that can measure the on-site class 0.2S and 0.5S current mutual inductor.
2, using a large-screen LCD display, the entire Chinese prompts automatic measurement, simple operation, small size.
3, the instrument voltage mutual inductor for qualitative measurement.

4, the instrument measures current and voltage mutual inductor secondary site load and the ratio of difference and angle difference.
5, the instrument can also measure does not identify the current mutual inductor or voltage mutual inductor turns ratio.

Product parameters:
1, current mutual inductor measuring range:.

a. Variable ratio range: 5A/5A ~ 5000A/5A (5A/1A ~ 4000A/1A).Turns ratio error: 0.5%.Measurement accuracy to meet: 0.2.
b. CT error of measurement range 5A/5A ~ 5000A/5A (5A/1A ~ 1000A/1A).
Limit error met: 0.05%, namely:5% of the rated current measurement error: 0.1 angle difference than the difference between 4 '.20%, 100%, 120% of rated current measurement error: 0.05 angle difference than the difference between 2 '.

3, the voltage mutual inductor measuring range:2.2kV-132kV, the measurement error: worse than 0.5.
4, the actual secondary load test:PT load 10VA-500VA, measurement error: 2.

CT load of 0.1 -25, measurement error: Class 2.
5, the working conditions:
  Supply voltage: AC 220V ± 10%.
  Power frequency: 50Hz ± 2%.
  Ambient temperature: (0 ~ 40) ℃.
  Humidity: 25 ℃ when the <85%.

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