Variable Speed Drive Frequency Converter Rectification Overload Support

Product Specification

VFD Frequency Converter with 120% Rated Current Basical Rectification Overload Support

VFD Frequency Converter Product Description:

The Variable Frequency Converter is equipped with a basical rectification power factor of ≥0.95 (Rated current, equipped with 2% AC input reactor), ensuring that the product operates efficiently. It also has multiple control methods, including V/F, close-loop vector control with sensor, and open-loop vector control without sensor. These control methods give the product the flexibility to adapt to different applications and environments.

In addition to its efficient performance, the Variable Frequency Converter also has basical rectification protection features, such as overload protection, overheat protection, short circuit protection, fault pre-judgment, etc. These protections ensure the safety and reliability of the product, even in challenging operating conditions.

The Variable Frequency Converter is designed to operate in environments with an altitude of ≤4000mm(2000m~4000m De-rating), making it suitable for a wide range of applications. It also has a mechanical IP protection rating of IP54, providing additional protection against dust and water ingress.

VFD Frequency Converter Features:

Protection:

• The Variable Frequency Converter incorporates advanced protection technologies, including IGCT pre-judgment and bridge circuit arm-through protection. These features ensure enhanced safety and reliability by detecting and addressing potential issues proactively.
• It offers real-time detection of AC terminal current's instantaneous value, preventing high current shutdown actions and minimizing the risk of damage or disruption.

Excellent Control:

• The converter enables double four-quadrant operation, allowing efficient energy feedback during both electric and braking operations. This feature enhances overall control and energy utilization.
• It exhibits fast torque dynamic response, meeting the system's requirements for suppressing mechanical resonance and ensuring stable and precise motor control.
• The motor is modulated in sections, synchronously adapting to the specific demands of high-performance applications such as steel rolling and hoists.
• It is compatible with various motor types, including induction motors, permanent magnet synchronous motors, and electrically excited synchronous motors, providing versatility and flexibility in motor selection.

Overload Curve:

• The Variable Frequency Converter offers a robust overload capacity, capable of sustaining 110% of the rated current continuously. Additionally, it can handle 120% of the rated current for up to 60 seconds, enabling temporary high-load operations without compromising performance or safety.

VFD Frequency Converter Technical Parameters:

VFD Frequency Converter Applications:

• Metallurgical Engineering: Within metallurgical processes, the Variable Frequency Converter assumes a critical role in governing and fine-tuning the motor speeds employed at various production stages. It finds extensive application in controlling rolling mills, smelting furnaces, and metal cutting machines, ensuring precise and efficient operations.

• Oil and Gas Transportation: The Variable Frequency Converter serves as an essential component in oil and gas pipelines and pumping stations. It facilitates the regulation of motor speeds, guaranteeing the smooth and efficient transport of petroleum products across vast distances.

Testing Platforms: Testing platforms, utilized in research laboratories and quality control facilities, rely on the Variable Frequency Converter to govern the speed and performance of test equipment. This ensures the generation of accurate and dependable results in a controlled testing environment.

• Renewable Energy: The Variable Frequency Converter forms an integral part of renewable energy systems, including wind turbines and solar power installations. It plays a pivotal role in converting and regulating the generated energy to align with grid requirements. This maximizes the efficiency and stability of renewable power generation.

• Rail Transportation: Within railway applications, the Variable Frequency Converter finds extensive usage in locomotives and trains. It enables precise control over traction motor speeds and torque, facilitating smooth acceleration, deceleration, and optimal energy utilization.

Mining and Lifting: The Variable Frequency Converter plays a vital role in mining operations by governing motors employed in heavy machinery such as excavators, haul trucks, and conveyor belts. This ensures the safe and efficient extraction and transportation of materials in mining environments.

• Marine Equipment: Various marine applications extensively employ the Variable Frequency Converter. It enables precise control over motor speeds and power consumption in propulsion systems, thrusters, and auxiliary equipment, thereby enhancing the performance and energy efficiency of ships and offshore platforms.

• LNG (Liquefied Natural Gas): The Variable Frequency Converter finds utilization in LNG plants and terminals. It regulates the speeds and powers of compressors, pumps, and associated equipment involved in the liquefaction, storage, and transportation of natural gas.

Power Sources and Energy Storage: The Variable Frequency Converter plays a crucial role in power generation plants encompassing both conventional and renewable energy sources. It governs generator outputs and synchronizes them with the electrical grid, ensuring optimal power generation. Additionally, it facilitates efficient charging and discharging of stored energy in energy storage systems such as batteries and capacitors.

VFD Frequency Converter Support and Services:

The Variable Frequency Converter product technical support and services include:

• Installation and commissioning
• Maintenance and repair
• Technical consultation and troubleshooting
• Training and education on product operation and maintenance
• Software and firmware updates
• Warranty support and service contracts
• 24/7 technical support hotline