PERFORMANCE CHARACTERISTICS

Reliable Engineering Design

• IGCT fault pre-judgment and bridge arm shoot-through protection technologies
• Redundancy and error tolerance design for key components
• Use of double-sided pressure-contact power devices
• IP54 protection design and C4-M corrosion resistance design

Modular Design for Easy Maintenance

• Modular design for key components
• Intelligent fault diagnosis system for fast fault locating
• With only 15 minutes required for phase module assembly/disassembly

Excellent Control Performance

• Four-quadrant operation capability
• Supporting various types of motors
• Fast dynamic torque response and torsional vibration suppression
• Segmented synchronous modulation of motors
• Selective harmonic elimination pulse width modulation (SHEPWM)

High Adaptability

• Single-motor/Multi-motor drive configuration
• High-altitude design: No need for derating within the altitude of 2,000 m
• Grid adaptability design, enabling the system to adapt to grid unbalance, grid harmonics, grid frequency flickering, transient grid voltage drops, and high/low voltage ride through

Communication Protocols & Commissioning Software

• Supporting customizable communication protocols through optional modules
• Robust monitoring system for real-time monitoring of internal data, waveforms, and other information
• hopeInsight Background Rapid Commissioning Software

Internationally Leading Technologies

• A High-Power IGCT AC-DC-AC Variable Frequency Speed Regulating Device" and "Key Technologies and Applications of Variable Frequency Speed Regulating System" passed the scientific and technological achievement appraisal and the result is internationally advanced, with some technologies appraised as internationally leading

MAIN PARAMETERS

COENG Tech Co., Ltd. was founded in 2017, specializes in the research, manufacturing, sales, and service of electric drive products, with a primary focus on Variable Frequency Drives (VFDs).

As an innovative company, COENG leverages its expertise and advanced technology to develop cutting-edge VFD solutions. These VFDs are designed to provide efficient and precise control over electric drive systems, enabling enhanced performance and energy savings in various applications.

COENG's commitment to quality is reflected in its state-of-the-art manufacturing facilities, which adhere to strict quality control standards. The company employs a team of highly skilled professionals who are dedicated to delivering reliable and high-performance electric drive products.

In addition to manufacturing, COENG also places great emphasis on customer satisfaction. The company strives to provide exceptional sales and service experiences to its clients. Through a comprehensive sales network and responsive customer support, COENG ensures that its products are readily available and that customers receive timely assistance whenever needed.

With its forward-thinking approach and dedication to excellence, COENG Tech Co., Ltd. aims to become a leading player in the electric drive industry. The company's focus on research and development, coupled with its commitment to customer satisfaction, positions it as a trusted provider of innovative VFD solutions for diverse applications.

COENG provides multiple voltage power sections and different controlmodes VFD products, which are suitable for various industrial scenarios such as metallurgy, petroleum,petrochemical, mining machinery, port lifting, distributed power generation, large-scale testing platforms,marine equipment, textile, chemical, cement, municipal, etc.

The products are including HD2000 series low voltage engineering type VFD, HD8000 series medium voltage multi-level VFD, HV500 & HV510 series high performanceVFD, HV300 & HV350 series common VFD, HV610 series for crane and oilfield dedicated HEC series VFD.