AL303 互感器校验仪

AL303Mutual 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 currentmutual inductor.
2, using a large-screen LCD display, the entire Chinese prompts automatic measurement, simple operation, small size.
3, the instrument voltagemutual inductorfor qualitative measurement.

4, the instrument measures current and voltagemutual inductorsecondary site load and the ratio of difference and angle difference.
5, the instrument can also measure does not identify the currentmutual inductoror voltagemutual inductorturns ratio.

Product parameters:
1, currentmutual inductormeasuring 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 voltagemutual inductormeasuring 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%.