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Capacity and Voltage Regulation on-Load Tap-Changer Transformer Auto Tap Changer. Patented Technology: Independently researched and developed with series multiple fracture design. On-Load Regulation: Adjusts transformer capacity and voltage under on-load conditions. Long Service Life: Mechanical life reaches 20,000 operations with reliable operation. High Voltage Capacity: Max voltage up to 110kV with max current of 630A. Customizable Options: Available to add permanent magnetic control mechanism and online oil filter. Strict Quality Control: Complete QC system for chemical, physical, and electrical properties. ISO Certified: Product meets ISO certification standards. Fast Delivery: Delivery time is 2-5 weeks upon deposit.