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Postato il 06/27/2022 :  03:25:14  Mostra profilo  Rispondi con Quote description#65306;

Power frequency analyzer is mainly used for #64257;eld testing of P class CT and PT. The test items mainly include excitation characteristic, transformation ratio, polarity, degauss, 5% and 10% error curves, secondary circuit check, withstand test of power frequency alternating current and secondary load. Adopting LCD, self-equipped mini type printer supporting #64257;eld printing; supporting to use USB #64258;ash disk to dump data, with simple and convenient operation.

Technical index

Electrical parameters

Accuracy 0.2%, 0.5%

Power supply AC 220Vą10% or AC 110Vą10%, 50/60Hz

Excitation voltage output 0-2500Vrms,

Excitation current output 0-5Arms (20A peak-value)

Large current output 0-1000A

Power frequency analyzer


I. Current Transformer (CT) II. Voltage Transformer (PT)

1. Magnetization curve 1. Excitation characteristic test

2. Transformation ratio test 2. Transformation ratio test

3. Polarity 3. Polarity

4. 5% and 10% error curve 4. Withstand test of power frequency alternating current

5. Current Injecting 5. Degauss

6. Degauss 6. Calculation of knee point value

7. Withstand test of power frequency alternating current 7. Actual secondary load test

8. Automatic calculation of excitation knee point value 8. Resistance test

9. Actual secondary load test

10. Resistance test

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