Transformer On Load Tap Switch Tester

The Transformer On Load Tap Switch Tester can meet the requirements of on-load tap-changer action sequence and measuring switching time. It can realize the accurate measurement of the on-load tap-changer's transition time, transition waveform, transition resistance, three-phase consistency and other parameters. It is an ideal equipment for testing on-load tap-changers. (The user is an on-load switch that adjusts the capacity, please inform in advance)

1.Test Y0 Y △ transformer, the resistance value is directly displayed without conversion.

2. Humanized data analysis, which can automatically find out the faults in the middle of the waveform and mark them.

3.The display of the waveform is to automatically adjust the resistance value and the amplitude of the time according to the data sampled back.

4.The △-type transformer can show the three phases of the same period.

5.The instrument automatically judges single resistance and double resistance.

6.It can be tested with or without winding.

7.The four-terminal wiring method provides high-precision resistance measurement without wire compensation.

8.Continuous testing can be performed in the middle of the test, saving the time of transformer power failure.

9.The Transformer On Load Tap Switch Tester can survive word report, which is convenient for data management and query.

10.The Transformer On Load Tap Switch Tester is controlled by a small computer, equipped with 800×480 color LCD touch screen, high-speed printer, support for external mouse, easy to operate;

11.1000 sets of data can be automatically saved inside the instrument, or it can be saved with an external USB flash drive.

1. Three-phase constant current source charging, charging current: 3A/1A gear; 0.6A/0.2A gear

2. The maximum voltage of the port: 24V

3. Maximum range of transition resistance: 100Ω

4. Transition resistance measurement range: 1A range: 0.4Ω～20Ω 0.2A range: 10Ω～100Ω

5. Waveform recording time length: 300ms

6. Sampling rate: 30k

7. Time resolution: 0.1ms

8. Resistance resolution: 0.1Ω

9. Accuracy: Transition resistance: ±5% of reading ±0.1Ω Transition time: ±0.5% of reading ±0.2mS

10. Operating temperature: -10～40℃ Operating relative humidity: <85%RH

1. Three-phase constant current source charging, charging current: 3A/1A gear; 0.6A/0.2A gear

2. The maximum voltage of the port: 24V

3. The maximum range of transition resistance: 100Ω

4. Transition resistance measurement range: 1A range: 0.4Ω～20Ω 0.2A range: 10Ω～100Ω

5. Waveform recording time length: 300ms

6. Sampling rate: 30k

7. Time resolution: 0.1ms

8. Resistance resolution: 0.1Ω

9. Accuracy: Transition resistance: ±5% of reading ±0.1Ω Transition time: ±0.5% of reading ±0.2mS

10. Operating temperature: -10～40℃ Operating relative humidity: <85%RH

1. The instrument can be measured with a coil, but it is strictly forbidden to measure with electricity, and disconnect the connection of the test terminal;

2. When testing with windings, the non-test terminal of the transformer should be grounded in a three-phase short circuit, and the O terminal of the instrument should not be grounded;

3. For the on-load switch that has not been moved for a long time, the switch should be changed many times before the test to remove the oxide layer on the contact surface and the impurities between the contacts;

4. Before use, the ground terminal of the instrument must be connected to the ground wire;

5. It is not possible to connect more than two sets of wires together as one measurement, and the unused wires should be opened;

6. During the test, the test wire is not allowed to be removed;

7. After the test is over, turn off the instrument first and then remove all wiring.