Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
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Transformer turn ratio tester(TTR)
The turns ratio or voltage ratio test of the running transformer can check the correctness of the turns ratio of the transformer, the condition of the tap changer, whether the transformer is short-circuited between turns, and whether the transformer can operate in parallel. The operation is simple and intuitive. It adopts a three-phase precision inverter power supply, and the test is fast and accurate. It can test both single-phase and three-phase simultaneously.
For the three-phase transformation ratio test, the transformation ratio value, error, and tap position are automatically calculated. For the three-phase group test, the transformation ratio value, error, tap position, and group number are automatically calculated. In addition, it can also measure the angle between phases.
★With Z-type, rectification, grounding, electric furnace, phase shift, balance, Scott, and reverse Scott variable measurement functions.
★With reverse connection protection, turn-to-turn short circuit protection, tap changer failure protection, output full short circuit protection.
★Modular LCD display, Simple operation according to on-screen instructions.
★print output, U disk interface, and RS232 interface, which is convenient for paperless office.
★automatically calculated transformation ratio value, error, tap position, and group number of three-phase group test
★Range:0.9-10000, Resolution:minimum0.0001,Measurement accuracy:±1%+2words(0.9-500),±2%+2words(501-2000),±5%+2words(2001-10000) ★Output voltage:Automatically adjust according to load
★Output current: AC220V±10% 50±1Hz
| Number of displayed bit | 5 bits | |||||
| Output voltage | 160V(AC power supply) | 10V (AC power supply) | Automatic (DC power supply) | |||
| Measurement scope | 0.9-10000 | 0.9-500 | 0.9-5000 | |||
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Accuracy | <2000 | ±0.1% | ≤150 | ±0.1% | <1000 | ±0.1% |
| 2000-10000 | ±0.3% | 150-500 | ±0.3% | 1000-5000 | ±0.3% | |
| Minimum resolution | 0.0001 | |||||
| Working power supply | AC220V±10%,50/60Hz±1Hz | Lithium battery(Optional) | ||||
| Memory of testing data | 50 groups | |||||
| Working temperature | -20ºC~40ºC | |||||
| Relative humidity | ≤80%, no dewing | |||||
| Volume | Length 360mm × width 280mm × height 160mm | |||||
| Net weight | 6kg | |||||