ETYZ-IV On-load Tap-changers Tester

On load tap changer analyzer is mainly applied to test transient time transition wave form transition resistance synchronization status of three phase.

Product Characteristics

1. Test transformers of type Y0 Y △ and display resistance value directly.

2. Automatically analyze waveform fault and mark the fault.

3. Automatically adjust resistance value and time range according to sampling data.

4. Transformer type △ is able to display to synchronization status of three phase.

5. Be able to test with winding or without winding.

6. Four terminal connection mode and provide high accuracy of resistance measurement.

7. Continuous test to save time of power off.

8 Make word report.

9. 800×480 colorized LCD with touch screen and high speed printer.

10. Store 1000 groups of data and also can be saved by USB flash disk.

Technique parameters

1. Three phase constant current source chargecharge current: 3A/1A; 0.6A/0.2A.

2. Maximum voltage of the port: 24V.

3. Maximum range of transition resistance: 100Ω.

4. Measuring range: 1A：0.4Ω～20Ω 0.2A：10Ω～100Ω.

5. Record time of waveform:300ms.

6. Sample rate: 30k.

7. Resolution of time:0.1ms.

8. Resolution of resistance: 0.1Ω.

9. Accuracy of transition resistance: ±5% Reading±0.1Ω.

    Accuracy of transient time: ±0.5% Reading±0.2mS.

10. Temperature: -10-40℃ Humidity: <85%RH.

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