Transformer Direct Resistance Standard

I. Key Features

l All high and low voltage current potential testing wires are connected to the transformer at once, eliminating the need to reroute the wires during testing.

l For the winding test of the star connection, the instrument can adopt a three-phase simultaneous testing method.A0、B0、C0The phase resistance, saving testing time.

l During low-voltage testing of a transformer with three-phase five-column internal angle connection, the instrument internally uses an automatic magnetic assistance method, which is faster than testing with direct use of high current.

l The high and low voltage winding test data of transformers are displayed and printed in full, and the three-phase unbalance degree is automatically calculated. Additionally, it can print the resistance values converted to the rated temperature.

l Prior to the three-phase test, conduct the initial testing.A0Our data reveals that simultaneous three-phase testing has resolved the issue of not being able to test the neutral point lead resistance during simultaneous three-phase testing, resulting in test data that is closer to the single-phase test values.

l Features comprehensive back electromotive force protection.

l The instrument's interior canForever. For a long timeStorage Test Data200 (expandable), with the added convenience of using a USB drive to store data for easy import into computers for processing.

l The instrument boasts wide temperature applicability, high precision, vibration resistance, anti-interference, and easy portability.

Section II: Key Technical Specifications and Usage Conditions

1Technical Indicators

1) Test Current:

Three-Phase Test: 20A＋20A、10A＋10A、5A＋5A、1A＋1A

Phase Testing: 40A、20A、10A、5A、1A、0.2A

2）Test Scope:

40A：100.0uΩ~0.5Ω20A：500.0uΩ~1Ω

10A：1mΩ~2Ω5A：10mΩ~4Ω

1A：100mΩ~20Ω0.2A：1Ω~100Ω

20A+20A200uΩ~0.3Ω10A+10A500uΩ~0.6Ω

5A+5A10mΩ~1.5Ω1A+1A100mΩ~7Ω

3) HighResolution:0.1uΩ

4) Accuracy: ±(Reading)×0.2%+2[No Chinese content provided, original return:]

5) Dimensions:440mm×330mm×380mm

6) Weight: 12kg

2Terms of Use

1) Environmental Temperature: －10℃  ～ 50℃ Environment Humidity: ≤ 85％RH

2) Power Supply: AC220V ± 10%Power Frequency:50±1）Hz