Functional Features
1、Yn-type, Y-type and △-type winding can be tested in the same way as three phases, and their unbalance rate can be calculated.
2、Numerous on-site and off-site test demands of almost all transformers can be met with power supply of maximum output current being 20A, measurement range 0 - 200Ω, and the integration of degaussing function.
3、 It can assist people to judge test data stability and prevent data misreading as resistance change rate within 5s, 15s and 30s can be automatically calculated during tests.
4、 Numerous protections against back electromotive force, disconnection and power failure.
5、 Equipped with a thermal printer, supporting 200 items of data storage locally and mass data storage in USB disks.
6、 Comfortable and convenient user experience with fresh and simple 7-inch industrial true color screen, supporting operation by full touch control.
Technical Indicators
| Output Current |
Single Phase: 20A, 10A, 5A, 1A, 0.1A Three Phase: 10A+10A, 5A+5A, 1A+1A, 0.1A+0.1A |
| Measurement Range |
Single Phase: Gear 20A 0.5mΩ～ 1 Ω Gear 10A 1.0mΩ～ 2 Ω Gear 5 A 10 mΩ～ 4 Ω Gear 1 A 0.1Ω～ 20Ω Gear 0.1A 2.0Ω～ 200Ω Three Phase: Gear 10A + 10A 0.5mΩ ～ 0.8 Ω Gear 5 A + 5 A 10 mΩ ～ 1.6 Ω Gear 1 A + 1 A 0.1 Ω ～ 8.0 Ω Gear 0.1A+0.1A 2.0 Ω ～ 80 Ω |
| Accuracy | ±(Accuracy×0.2%+2) |
| Power Supply | AC220V±10%, 50/60Hz |
| Temperature | -10℃～50℃ |
| Relative Humidity | ＜90%, non-condensing |
| Dimension | 400mm×315mm×223mm |
| Weight | 9 kg |
Precautions
For testing winding of no-load regulating transformers, don’t switch off no-load tap changer during tests or power discharging.
Don’t disconnect test wires and cut off power switch during tests or power discharging.
During transformer tests, winding of the non-test side must be in open circuit.
