3 phase auto electrical transformer turns ratio ttr tester

Turn ratio tester can check the correctness of transformer turns ratio, the condition of the tap changer, whether the transformer has inter-turn short circuits, and whether the transformers can run in parallel.

☆ Turn ratio measurement range: 1-10000
☆ Turn measurement accuracy: ± 0.1% + 2 words (0.9 ~ 500),
                             ± 0.2% + 2 words (501 ~ 2000)
                             ± 0.3% + 2 words (2001 ~ 10000)
☆ Working power: AC 220V ± 10% ☆ Power frequency: 50Hz ± 1Hz

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