ZPSG Dry-Type Rectifier Transformer for Hydrogen Production | Multi-Pulse, Low Harmonic & High Reliability

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ZPSG Dry-Type Rectifier Transformer for Hydrogen Production

The Dry-Type Rectifier Transformer for Variable Frequency Drives (VFD) is specifically designed to provide multi-phase rectified power for medium- and high-voltage frequency converters. Based on proven technology and extensive experience with various VFD systems, we have developed the ZPSG Series Nomex® Insulated Dry-Type Rectifier Transformer. The product range includes 9-pulse, 12-pulse, 18-pulse, and 27-pulse configurations, with both self-cooled and forced air-cooled options available.

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CEEG ZPSG Series Dry-Type Rectifier Transformer for Green Hydrogen Production - High-Current Solution for Electrolyzers

CEEG ZPSG Series Dry-Type Rectifier Transformer for Green Hydrogen Production - High-Current Solution for Electrolyzers

CEEG ZPSG Series Dry-Type Rectifier Transformer for Green Hydrogen Production - High-Current Solution for Electrolyzers

CEEG ZPSG Series Dry-Type Rectifier Transformer for Green Hydrogen Production - High-Current Solution for Electrolyzers

CEEG ZPSG Series Dry-Type Rectifier Transformer for Green Hydrogen Production - High-Current Solution for Electrolyzers

CEEG ZPSG Series Dry-Type Rectifier Transformer for Green Hydrogen Production - High-Current Solution for Electrolyzers

Scope of application

Variable Frequency Drives (VFD)

Designed for high-power motor systems, with a focus on harmonic mitigation and improved power factor.

Variable Frequency Drives (VFD)

Metallurgy & Mining

Suitable for heavy-duty electrical drive systems with impact loads, emphasizing efficient cooling and long-term reliability.

Metallurgy & Mining

Process Power Supply

Ideal for multi-pulse rectification systems, ensuring high power quality and optimal system compatibility.

Process Power Supply

Product Description

Product Description

1 The core adopts a multi-step lap process with a through-core positioning structure, ensuring no lateral or longitudinal displacement under all operating conditions.

CEEG ZPSG Dry-Type Rectifier Transformer for Hydrogen Production

2 Windings are designed in multiple structures, providing strong short-circuit withstand capability.

CEEG ZPSG Dry-Type Rectifier Transformer for Hydrogen Production

3 Equipped with a dedicated air-cooling duct system for high cooling efficiency and safe, reliable operation.

CEEG ZPSG Dry-Type Rectifier Transformer for Hydrogen Production

4 Optimized leakage flux distribution, fully meeting the operational requirements of VFD systems.

CEEG ZPSG Dry-Type Rectifier Transformer for Hydrogen Production

5 Multi-pulse rectification technology effectively suppresses harmonics, improving power quality and extending motor lifespan.

CEEG ZPSG Dry-Type Rectifier Transformer for Hydrogen Production

6 Various structural configurations are available to meet different variable frequency drive system requirements.

CEEG ZPSG Dry-Type Rectifier Transformer for Hydrogen Production

7 Maximum capacity up to 9000 kVA, supporting up to 72-pulse rectification systems.

CEEG ZPSG Dry-Type Rectifier Transformer for Hydrogen Production

Product Features

High Efficiency & Energy Saving

Up to 40% Energy Savings: Engineered with an advanced design to achieve up to 40% energy savings.
Low Noise Operation: Optimizes internal components to ensure ultra-quiet, low-noise operation.
Energy Consumption Cut: Significantly reduces power waste to minimize long-term operational costs.

Premium Core Material

Premium CRGO Steel: Made with high-quality, cold-rolled grain-oriented silicon steel.
45° Step-Lap Core: Utilizes an advanced 45° step-lap core structure for optimized magnetic paths.
Low Loss & High Performance: Significantly minimizes energy dissipation to deliver high operational performance.

Optimized Connection Technology

Extended Delta Tech: Features a secondary-side extended delta connection to enable precise phase-shifting.
Input Harmonic Reduction: Effectively neutralizes and reduces harmful input current harmonics.
Power Quality Boost: Optimizes wave symmetry to significantly improve overall power quality.

Innovative Structure Design

Layered Lead Design: Features a layered secondary phase-shifting lead design for enhanced aesthetic and professional wiring.
Simplified Installation: Optimizes the internal structural layout to significantly simplify on-site installation.
Modular & Detachable: Utilizes a modular, detachable partition structure for flexible maintenance and transportation.

Excellent Operational Performance

Robust Mechanical Strength: Engineered with high-density structural reinforcement for superior mechanical strength.
Excellent Short-Circuit Withstand: Delivers industry-leading robustness to withstand severe short-circuit conditions.
High-Current Safety: Guarantees ultra-safe, uninterrupted, and reliable operation under high-current loads.

High Safety & Flame Retardancy

Flame-Retardant Mastery: Designed with premium self-extinguishing materials for excellent flame-retardant properties.
All-Environment Safety: Engineered to guarantee highly secure and stable performance in various operating environments.
Fire Hazard Protection: Eliminates fire propagation risks to safeguard critical power infrastructure.

Main Parameters

Ambient Temperature	-10℃~40℃
Relative Humidity	≤95%
Altitude	≤ 1000 m
Pollution Level	Class III
Frequency	50 Hz / 60 Hz
Cooling Method	Natural Air Cooling (AN) / Forced Air Cooling (AF)
Service Life	20 years

Implementation Standard

Implementation Standard

GB/T 10228-2015 Technical Requirements for Dry-Type Power Transformers

GB 1094.11-2007 Technical Specifications and Testing Methods for Dry-Type Transformers

GB/T 22072-2008 Technical Conditions for Variable Frequency Drive (VFD) Transformers

JB/T 10088-2004 Technical Requirements for Dry-Type Power Transformers of 6 kV Class and Above

IEC 60076-11:2004 International Electrotechnical Commission (IEC) Standards for Dry-Type Transformers

Technical Advantages

R&D Cloud Platform

R&D Cloud Platform

An integrated system combining electromagnetic optimization design, parametric modeling, performance analysis, structural optimization, and automatic drawing generation. It enables efficient sharing of transformer design resources and supports data management including search, modification, and version control.

Simulation Analysis

Simulation Analysis

Advanced multi-physics simulation covering fluid flow, thermal field, electric field, leakage magnetic field, transient wave processes, and short-circuit forces. Each product series is optimized through thermal and flow simulations to accurately determine winding temperature rise and hotspot distribution, ensuring stable performance and high reliability.

Smart Operation & Maintenance Platform

Smart Operation & Maintenance Platform

By collecting key operational data such as temperature, current, voltage, vibration, and grid harmonics, the system enables real-time power quality analysis and fault detection. It also supports mobile access for remote monitoring and intelligent operation & maintenance.

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