Category: VFD

Variable frequency drives (VFDs) have become a ubiquitous component in industrial applications for their ability to regulate and control electric motors’ speed. The reliability and quality of these drives are critical, as a malfunction or failure of a VFD can cause significant downtime, lost productivity, and damage to equipment. In this blog, we will explore why the quality and reliability of variable frequency drive manufacturers are essential and how they impact a business’s bottom line. The Impact of Quality and Reliability on Downtime Downtime is a significant concern in any industrial application, and VFD failures can cause costly interruptions in operation. High-quality and reliable VFDs eliminate the risk of unexpected shutdowns, equipment damage, and long repair times, reducing production losses and increasing equipment lifespan. The Role of VFD Manufacturers in Quality Control VFD manufacturers play a critical role in ensuring the quality and reliability of their products. They are responsible for ensuring that every component of their VFDs is of high quality and that it meets industry standards. Quality control measures must include rigorous testing of each unit before it leaves the factory. Manufacturers must adhere to strict quality standards to meet the complex and demanding needs of industries such as pharmaceuticals, food and beverage, and chemical processing. The Benefits of Working with Reliable VFD Manufacturers Reliable VFD manufacturers offer several advantages to customers. By partnering with a reliable manufacturer, businesses can experience increased uptime, longer equipment life, and reduced repair and maintenance costs. The use of high-quality VFDs can also contribute to energy savings and reduced operational costs, making a reliable manufacturer an excellent return on investment. The Impact of VFD Failure on Safety VFD failure can result in safety concerns that extend beyond potential equipment damage and productivity loss. A drive malfunction can lead to shock and fire hazards, putting employees at risk. A reliable VFD manufacturer ensures that each unit undergoes comprehensive testing and meets established industry standards. Conclusion: In conclusion, the quality and reliability of variable frequency drive manufacturers are critical factors for businesses to consider. The risk of equipment failure, productivity loss, and safety hazards are all concerns that can be avoided by partnering with a reliable manufacturer. It is essential to choose a VFD manufacturer that adheres to strict quality control measures, rigorously tests their products, and offers superior customer service. By investing in high-quality VFDs, businesses can minimize repair costs, reduce downtime, and improve equipment safety while enhancing overall operational efficiency.

VEIKONG always welcomes our clients with open arms, and our clients from Botswana were delighted with the warm hospitality they received during their factory tour in May. The tour was designed to give our clients a comprehensive and fascinating view of our top-quality VFD manufacturing processes. Our expert team took our clients on a journey through our state-of-the-art production line, which demonstrated the efficiency of our workers and advanced machinery. The tour provided them with an opportunity to see how our VFDs are manufactured with precision and accuracy to meet the highest performance standards. After the tour of the production line, our clients were guided into our aging testing room, an innovative facility where our VFDs are tested for their overall performance, even in high temperatures, to ensure reliability. Each product undergoes extensive testing and manual inspection to ensure its durability and long-lasting lifespan after delivery to our clients. We then showed our clients the dedicated department for research and development, which is responsible for our continuous innovation. In the R&D room, they were shown our VFDs’ inner software and practical features being developed, along with the many certificates we have obtained over the years, which demonstrate our dedication to providing our clients with quality products at competitive prices. Our clients commented on how impressed they were with the tour and the extensive knowledge that was gained, prompting them to place new orders within a week of the tour’s conclusion. We are thrilled that our efforts in provide excellent service and quality products have been welcomed with such positive feedback from our clients. VEIKONG is a customer-centric company that aims to build strong relationships based on trust, honesty, and transparency with our clients. Our factory tours provide an opportunity for our clients to witness first-hand our dedication to quality and innovation, which is essential to maintaining this trust and building our strong relationships. We are delighted to welcome our clients to come and tour our factory, and we promise that it will be a unique and unforgettable experience that showcases our commitment to excellence.  

Veikong, the premier VFD supplier in China, has announced its participation in the highly-anticipated Middle East Energy Exhibition 2024, running from April 16th-18th at booth H7.C28. With Veikong’s extensive experience and glowing reputation within the industry, visitors can expect to witness cutting-edge VFD solutions that will take the industry to new heights. During the exhibition, Veikong will unveil its latest VFD500 series, showcasing updated functions like TCP, STO, and support for all series PG cards, bringing uncompromising capability, performance, and reliability to VFD technology. Moreover, Veikong’s versatile General-Purpose VFD has won acclaim from clients worldwide, and the company is thrilled to showcase this sought-after series at the exhibition. Veikong’s VFD500-PV series will also be on display, featuring 99.9999% MPPT efficiency, along with a range of other advanced pump protection features such as low light protection, dry run protection, and full or short water protections, ensuring long pump lifespan Veikong is confident in its VFD solutions and takes pride in providing 18 months warranty and free spare parts for repair, along with quick, online professional technical support. The company also offers OEM services, enabling clients to custom their VFD solutions to suit their individual business needs. Visitors should not miss the exclusive opportunity to witness the innovative VFD solutions from Veikong’s extremely capable and experienced team. The company’s professionals are eager to network and engage with visitors, providing comprehensive consultations and explaining the benefits of implementing Veikong’s VFD solutions.  So why settle for anything less? Veikong’s quality and reliability are unequaled within the industry. Visit booth H7.C28 at the Middle East Energy Exhibition 2024, and find out how Veikong can provide customized and cost-effective VFD solutions that meet your business requirements with uncompromised reliability and top-notch customer service.

In the ever-evolving landscape of building design and management, energy efficiency is a top priority. Heating, Ventilation, and Air Conditioning (HVAC) systems play a pivotal role in maintaining comfort within buildings while accounting for a significant portion of energy consumption. To address this, the integration of 3-phase Variable Frequency Drives (VFDs) in HVAC systems has become a game-changer, revolutionizing energy efficiency in commercial and residential structures. Understanding the Basics: What Are 3-Phase VFDs? Before delving into their application in HVAC systems, let’s revisit the fundamentals. 3-phase VFDs are devices that regulate the speed and torque of electric motors by varying the frequency and voltage supplied to them. In simpler terms, they control the output of HVAC motors, like those driving fans and pumps, in response to the heating and cooling demands of a building. VFD drive manufacturers are now producing specific 3-phase VFDs that help to efficiently improve the overall functioning of HVAC systems. How 3-Phase VFDs Enhance HVAC Efficiency? Variable Speed Control: Traditional HVAC systems often operate at fixed speeds, consuming a consistent amount of energy regardless of the load. 3-phase VFDs, however, adjust motor speed in real-time, matching it precisely to the building’s current requirements. This “smart” approach significantly reduces energy wastage. Soft Start and Stop: VFDs facilitate smooth and gradual motor starts, eliminating the power surges associated with direct-on-line starting. This reduces stress on equipment, extends motor lifespan, and lowers maintenance costs. Improved Precision and Zoning: 3-phase VFDs enable precise control over air and water flow rates in HVAC systems. This allows for zoning, where different areas within a building receive varying levels of heating or cooling as needed. It’s a boon for large structures with fluctuating occupancy or usage patterns. Energy Savings: The energy savings achieved with 3-phase VFDs can be substantial. By dynamically adjusting motor speed, these drives can yield energy savings ranging from 20% to 50%, translating into significant cost reductions for building owners. Enhanced Comfort: Variable speed motors ensure a more even distribution of conditioned air, leading to improved comfort levels for occupants. Temperature fluctuations and drafts are minimized, resulting in a more pleasant indoor environment. Applications in HVAC Systems Air Handling Units (AHUs): 3-phase VFDs control the motors driving the fans in AHUs, enabling precise airflow adjustments to maintain the desired temperature and humidity levels. Pumps: VFDs regulate the speed of pumps circulating hot or cold water in HVAC systems, optimizing water flow rates and temperature control. Chillers and Compressors: For larger HVAC systems, VFDs can be used to modulate the operation of chillers and compressors, further improving energy efficiency. The Bottom Line: Benefits for Building Owners Building owners and facility managers stand to gain immensely from integrating 3-phase VFDs into HVAC systems: Lower Operating Costs: Reduced energy consumption translates to significant savings on utility bills. Extended Equipment Life: Soft starting and stopping mechanisms reduce wear and tear on HVAC components. Sustainability: Lower energy usage aligns with environmental goals and reduces a building’s carbon footprint. Occupant Comfort: Consistent temperature control enhances the well-being of occupants, improving productivity and satisfaction. Conclusion: The integration of 3-phase VFDs into HVAC systems is a win-win for both building owners and the environment. By optimizing energy consumption and enhancing comfort, these innovative drives are at the forefront of the quest for energy-efficient and sustainable building management. As the world places greater emphasis on green construction and energy conservation, 3-phase variable frequency drive manufacturers are set to play an increasingly central role in the HVAC systems of the future with their advanced products.

A variable frequency drive (VFD) is an electronic mechanism used to control the speed of an AC induction motor. Variable speed requirements for AC induction motors are fulfilled by a 3-phase motor, an inverter, or VFD.  Depending on VFD and how it is installed, the variable frequency drive operates on a single or 3-phase input and the output matches the required voltage. Because the motors are generally designed with a single operating speed, VFD is required to alter and control the speed of the motor. Understanding Variable Frequency Drive (VFD) There is a significant layer of control between the input and output processes of variable frequency drive (VFD). The control panel works as an interface that turns AC input to DC and then puts it on AC output using a conversion called power width modulation (PWM). Since the output is well-controlled by VFD on a motor, the input doesn’t require to match the desired output. VFDs and Single-Phase Input It is necessary to have 3-phase input to operate a 3-phase motor with a variable frequency drive. VFD will facilitate single-phase current during the conversion stage. For doing this, input power is initially turned to DC using diodes and then turned to the desired output using diodes and capacitors that result in AC. 3 phase motor is attached to the output connectors on the VFD, wherein the input voltage isn’t a considerable factor. VFDs and 3-Phase Input When you are using a 3-phase input, the wiring needs to be processed through an inverter to produce DC. The mechanical function of VFD remains the same and output is controlled by VFD. In order to reduce complications and chances of errors, it is good to work with a 3-phase variable frequency drive manufacturer or AC motor speed control manufacturer to get the best assistance. Speed Control Method for AC Induction Motors Many industrial AC induction motors are 4 pole type, so the motor speed works in sync with input power supply frequency (Hz). A VFD controls the motor speed by using pulse width modulation to modify the power supply frequency. To use VFDs, you may require a 3-phase AC induction motor with an inverter having at least a continuous duty rating. The phase control motor exhibits less electrical noise as compared to VFD-driven motors, where VFDs run at a much faster rate. For applications like polishing machines, dual conveyors, or stirring machines, frequent speed fluctuations can affect the final product due to load. If constant torque and speed control are necessary, connecting VFDs to a 3-phase motor is worth considering.

Any engineer using a variable frequency drive needs a bypass contractor and soft starter to efficient and reliable function of three-phase motors. Using a drive with an in-built soft starter and bypass offers significant benefits in itself, such as minimizing shock to mechanical parts, extending system lifespan, increasing reliability, reducing downtime, and lowering costs. A bypass contractor connected with a VKS-8000 Bypass Soft Starter reduces the need for integrating additional components, which reduces enclosure size and installation time. Bypass contractor drastically minimizes heat produced by the starter, which eventually decreases voltage drop and cuts heat build-up in the starter. Keep reading to learn more about configurations of bypass, soft starters, and adjustable frequency drive. Why Connect Bypass Contractor with a Soft Starter? Comprehensive drive packages are usually comprised of robust and steady solutions. Using a soft starter device can help minimize slippage, stretching and squealing, and extend the belt life as compared to traditional across-the-line starters. It ensures shock resistance on conveyors and material handling equipment, which reduces the costs of damage to products.  For instance, in pump applications, soft starters can be able to gently stop the motor, thus easing the general water hammer effect, Bypass Contractor, Soft Starter, and Frequency Drive Configurations As a whole, all these three components are typically used to control the motor and its related operations. Let’s look at their specific configuration: Bypass Contractors Connect the motor across the AC line, which will further accelerate to full speed and emit a remarkable amount of current during the process. Soft Starters It is used to slow draw the motor to the full speed or even ramp down to stop. To minimize current draw as well as mechanical pressure on the mechanism, soft starters are used often in place of contractors. With smooth acceleration and deceleration of the system, it reduces wear on gears, belts, clutches, chains, bearings, and shafts. In general, large pumps and fans need at least 30-second of ramp time to avoid mechanical damage. They are mainly used for applications where an abrupt stop of the load and mechanical strain is required to prevent. Frequency Drive Alongside a great ramp ability of a soft starter, variable frequency drive let speed be varied in critical applications, which offer greater flexibility and numerous additional features. Enclosed adjustable frequency drive generally includes a bypass for applications that cannot afford downtime. Connecting a soft starter allows the motor to be ramped to full speed, thereby reducing mechanical and electrical pressure on the system. Conclusively, adding a bypass with a soft starter works as an efficient backup to operate the motor. Especially, large drive systems should include soft starters in the bypass contractor, else it adversely affects the power system and can damage bearings.

There have been many discussions about new technology and AC motors. Varying AC motor speed control has always been hard, so for many years, DC motors are the only option when accurate speed control and motor power are needed. But advances in the last few years have changed this. And these advances have resulted in variable frequency drives competing with traditional DC motor control in an application where they were earlier too expensive or also lacked the power to perform properly. Here are some most common types of VFD that are used in different applications. Current Source Inversion Current source inversion derives are generally favored over-voltage source inverter drives in high power applications where the self-motivated response is not required. Conventional CSI drives come with their limitations, such as resonance, instability at low speeds, and high torque ripple that can restrict the applications where they are used. They have been used in signal processing and also industrial power applications. This VFD also offers a very clean current waveform but needs large and expensive inductors in its construction and causes cogging below 6 Hz. Voltage Source Inversion They are widely used with a pulse width modular. The DC output of the diode bridge converter usually stores energy in the capacitor bus for supplying stiff voltage input to the inverter. The factor the voltage source inversion drives with diode rectifies is constant or also better over the normal operating range. The power converting rate that is based on the capacities of the power semiconductors devices and also the cooling system is the only limitation in this VFD’s designs. The normal rating of this VFD is based on 40° C maximum ambient temperature and altitudes less than 1OOOm. Applications outside these circumstances need de-rating. Pulse Width Modulation They are used in industry because of their excellent input power factor because of fixed DC bus voltage, no motor cogging, high efficiencies, and lower cost. A PWM VFD uses a series of voltage pulses of dissimilar lengths for simulating a sinusoidal wave. The pulses are timed so that the time average integral of this drive yields an ideal sinusoid. Load Commutated Inverter They are basically synchronous motor drives that have been usually used in very high-power applications. They are also used in variable speed applications including pumps, compressors, and fan drives. They also tend to be larger than the comparative power VSI. The advantage of this inverter is that it employs converter-grade thyristors that are able to control a large amount of power and voltage. And it can also utilize the natural communication of the semiconductor device. While this drive is simple and durable; it requires careful attention to AC power system problems related to harmonic currents and reactive power. They also need specially designed motors with low reactance and should work with harmonic heating and also air gap torque harmonics. These are some different types of VFD that are used in different types of industries. You can use VFD for matching the speed of motor-driven equipment to the load requirement. You can also find a reliable variable frequency drive manufacturer for buying high-quality products for your applications.

Motors often require a large amount of energy when quickly accelerating to full speed. A VFD (variable Frequency Drive) and soft starter can both be used for tumbling inrush currents and also restraining torque, shielding the valuable equipment, and extending the life of the motor by falling motor heating caused by regular starts and stops. Choosing between a VFD and soft starter depends on the application, system requirements, and cost of both for initial startup and over the life cycle of the system. It is ideal to find a reliable 3 phase variable frequency drive manufacturer for buying high-quality products for your applications. Below, I’m going to share some important things that you should consider for choosing between a soft starter and a VFD. Soft Starters A soft starter helps to protect AC electric motors from damage caused by sudden influxes of power by limiting the large initial inrush of current associated with motors startup. It provides a gentle ramp-up to full speed and is used at startup. They are also known as reduced voltage soft starters. Applications of Soft Starter A soft starter is generally used in applications where: Speed and torque control are obligatory when starting. Falling large establish inrush currents connected with a large motor is required. The mechanical system requires a smooth start for relieving torque spikes and tension connected with a normal startup. Pumps are used for eliminating strain surges caused in piping systems when fluid changes its direction hastily. Variable Frequency Drive Variable frequency drives are motor control devices that help to protect and control the speed of an AC induction motor. It can control the speed of the motor during the start and stop of the cycle and also with the run cycle. It is also referred to as an AFD (Adjustable Frequency Drive). Applications of VFDs A variable frequency drive is generally used in applications where: Full speed control is required. Energy-saving is a goal. And custom control is required. Selecting the Correct Equipment for Your Needs Picking a soft starter or a VFD depends on the application. Soft starters are smaller and less expensive than VFDs. A large also takes up more space and are expensive than soft starters. While a variable frequency drive is a more expensive upfront, it can offer energy savings of up to 50% and also produce more cost-saving over the life of the equipment. Speed control is also an added benefit of using a VFD because it provides consistent acceleration time throughout the complete operating cycle of the motor, not just during startup. It can also provide more healthy functionality than soft starters. It is essential to ensure that a VFD can initially cost two or three times more than a soft starter. If constant acceleration and torque control are not requiring, and your application needs current limiting during startup, a soft starter may be a great solution. These are some things that will help in choosing between a soft starter and a variable frequency drive to fit your application. You can find a reliable 3 phase variable frequency drive manufacturer for buying the best-quality product for your application.