Double-ring on-load tap changer with ultrahigh impedance of 110 kV
A voltage regulating transformer, 10,000-volt technology, applied in the field of transformers, can solve the problems of reducing the size and weight of transformers, polysilicon steel sheets, consumption, etc.
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[0010] The present invention will be further described below through the description of specific embodiments with reference to the accompanying drawings.
[0011] Such as figure 1 As shown, a 110,000-volt ultra-high impedance double-turn on-load tap-changing transformer includes an iron core 1, a low-voltage coil 2, a high-voltage voltage-regulating coil 3, and a high-voltage coil 4. The voltage regulating coil 3 and the high voltage coil 4, and the high voltage coil 4 adopts a central outlet. In the figure: A represents the high-voltage tap, B represents the high-voltage terminal, and C represents the high-voltage head.
[0012] The high-voltage voltage regulating coil 3 is arranged between the low-voltage coil 2 and the high-voltage coil 4, which can make full use of the large main insulation distance between the high-voltage coil 4 and the low-voltage coil 2; The insulation distance of the iron yoke and the insulation protection structure at the upper end of the high-volt...
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