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Dry-type phase-shifting rectifier transforme

Executive standards:

IEEE C57.12.91-2020 Standard test code for dry-type distributton and power transformers. 

IEEE C57.12.60-2020 Standard for thermal evaluation of insulation systems for dry-type power and distribution transformers. 

IEC60076-11:2018 “Power transformers - Part 11: Dry-type transformers”.

GB/T1094.1-2013“Power transformers Part 1: General”.

GB/T1094.3-2017“Power transformers Part 3: Insulation levels, insulation tests and external insulation air gaps”.

GB/T1094.5-2008“Power transformers Part 5: Ability to withstand short circuit”.

GB/T1094.10-2003"Power transformers Part 10: Determination of sound level".

GB/T1094.11-2022“Power transformers Part 11: Dry-type transformers”.

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Product Overview

Specially engineered for High-Voltage Variable Frequency Drive (VFD) systems, this transformer employs Class H insulation and multi-winding phase-shifting technology to achieve multi-pulse rectification. It effectively mitigates harmonics while delivering a stable, galvanically isolated power supply to the converter. Rated from 300 kVA to 10,000 kVA, it supports standard voltage classes including 3 kV, 6 kV, and 10 kV.

Key Features

Superior Thermal & Environmental Resistance: Class H insulation offers excellent endurance; robust moisture and fire resistance ensures reliability.
Compact & Efficient Design: Space-saving footprint with high phase-shifting accuracy, optimizing line-side power factor.
High Durability: Exceptional short-circuit withstand capability and resistance to thermal cycling. Designed for easy maintenance and arduous service conditions.

Applications

Ideal for energy-saving retrofits involving fans, pumps, and other equipment in metallurgy, petrochemicals, power generation, and mining. It is particularly suited for environments with stringent fire safety codes and high load volatility, such as offshore oil platforms and water treatment plants.

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