330kv-level three-phase three-winding high-impedance power auto-transformer with function of on-load voltage regulation
A power transformer, 1.330kv technology, applied in the field of transformers, can solve the problems of leakage magnetic flux windings and local overheating of structural parts, and achieve the effect of reducing stray losses, reliable clamping structure and fastening measures, and light weight
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[0013] The present invention will be further described through the embodiments below in conjunction with the accompanying drawings.
[0014] 330kV class three-phase three-winding OLTC high-impedance power transformer, on the outside of the three-phase five-column core 2, there are low-voltage windings 3, public windings 4, series windings 5 and voltage-regulating windings 6 concentrically installed in sequence, and the low-voltage windings are connected in series Reactor; the on-load voltage regulating device is arranged at the end of the transformer oil tank; the on-load voltage regulating device is composed of three single-phase on-load switches and arranged at the end of the transformer oil tank, and the three single-phase on-load switches share one set of transmission mechanism; A, B, C three phases each adopt a single-phase on-load switch group for voltage regulation, and adopt the voltage regulation method at the end of the series winding; the reactor connected in serie...
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