ZPSG Dry-Type Rectifier/Variable-Frequency Transformer

Product Introduction

Variable frequency drive
High-power motor systems, focusing on harmonic suppression and power factor
Metallurgy and mining
Impact loads in electric drives, emphasizing heat dissipation and long-term reliability
Process power supply
Multi-pulse rectifier systems, focusing on power quality and system compatibility

The core adopts a multi-step through-core positioning structure, preventing lateral or longitudinal core displacement under all operating conditions.
Windings available in multiple structural designs for strong short-circuit withstand capability.
Dedicated forced-air cooling guide system delivers high heat dissipation efficiency, safe and reliable products.
Well-distributed leakage flux, fully meeting inverter operating requirements.
Multiplexing technology effectively suppresses harmonic content for virtually harmonic-free output and longer motor life.
Diverse structural types to meet the requirements of various frequency conversion systems.
Maximum capacity up to 9000kVA, supporting 72-pulse rectification

High efficiency and energy saving
Advanced design delivers low operating noise and energy savings of up to 40%, significantly reducing energy consumption.
Premium Core Materials
The core is made of premium cold-rolled silicon steel with a 45° full-miter lamination process, ensuring low losses and high performance.
Optimized Connection Technology
Extended-delta connection on the secondary side effectively reduces input current harmonics and improves power quality.
Structural innovation
Layered structure: the secondary-side phase-shifting leads are arranged in layers, improving product aesthetics and installation convenience. Detachable assembly: the compartment partitions adopt a detachable, prefabricated structure for easy installation, maintenance, and transport.
Excellent Operating Performance
Strong short-circuit resistance: high mechanical strength withstands large current surges for safer, more reliable operation.
Safe & Reliable
Excellent flame retardant properties ensure safety and reliability in various environments.

GB/T 10228-2015
Technical parameters and requirements applicable to dry-type power transformers
GB 1094.11-2007
Specifies test methods and technical requirements for dry-type transformers
GB/T 22072-2008
Technical conditions for transformers used in variable-frequency speed regulation
JB/T 10088-2004
Covers the technical requirements for 6kV-class and above dry-type power transformers
IEC 60076-11:2004
International Electrotechnical Commission standard for dry-type transformers

R&D cloud platform
Integrates electromagnetic optimization design, parametric drawing, performance analysis, structural optimization, and automatic drawing output for transformers, enabling shared transformer design resources and search, modification, and version control of all kinds of data.
Simulation Analysis
Flow field, temperature field, electric field, leakage magnetic field, wave process, and short-circuit force. The R&D and design of every product series are verified through flow field and temperature field simulation analysis to determine the winding average temperature rise and hot-spot temperature, ensuring product performance.
Smart O&M platform
By collecting key data such as transformer temperature, current, voltage, vibration, and grid harmonics, it enables online power quality analysis and fault alarms, and can be installed on mobile phones.