Customized Motor Inverter Input 220v Output 380v 4kw Single To 3 Phase Inverter

FPR500E High-performance Synchronous Motor Inverter

►Power class

Single-phase 220v±15% 0.4-2.2kw
Three-phase 380V±15% 0.75-315kw

►Products Specifications:

►Product introduction

Energy Savings with Variable Speed Drives

If you have an AC motor-driven application that does not need to be run at full speed, then you can cut down energy costs by controlling the motor with a Variable Speed Drive (VSD). Variable Speed Drives (Also known as Variable Frequency Drives) allow you to match the speed of the motor-driven equipment to the process requirement.

Variable Torque Versus Constant Torque

Variable speed drives, and the loads they are applied to, can generally be divided into two groups: constant torque and variable torque. The energy savings potential of variable torque applications is much greater than that of constant torque applications. Variable torque loads include centrifugal pumps and fans, which make up the majority of HVAC applications. Constant torque loads include vibrating conveyors, punch presses, rock crushers, machine tools, and other applications where the drive follows a constant V/Hz ratio.

Why Variable Torque Loads Offer Great Energy Savings

In variable torque applications, the torque required varies roughly with the square of the speed, and the horsepower required varies approximately with the cube of the speed, resulting in a large reduction of horsepower for even a small reduction in speed. A motor in a variable torque application will consume only 25% as much energy at 50% speed as it will at 100% speed. This is referred to as the Affinity Laws, which define the relationships between speed, flow, torque, and horsepower.

Energy Consumption

Variable Speed Drives (VSDs) allow you to consume less energy than other speed control techniques when load requirements are less than full speed, as is usually the case in HVAC applications.

Extended Equipment Life and Reduced Maintenance

Single-speed starting methods start motors abruptly, subjecting the motor to a high starting torque and to current surges that are up to 10 times the full-load current. Variable speed drives, on the other hand, gradually ramp the motor up to operating speed to lessen mechanical and electrical stress, reducing maintenance and repair costs, and extending the life of the motor and the driven equipment.

Soft starts, or reduced-voltage soft starters (RVSS), are also able to step a motor up gradually, but drives can be programmed to ramp up the motor much more gradually and smoothly and can operate the motor at less than full speed to decrease wear and tear. Variable speed drives can also run a motor in specialized patterns to further minimize mechanical and electrical stress. For example, an S-curve pattern can be applied to a conveyor application for smoother decel/accel control, which reduces the backlash that can occur when a conveyor is accelerating or decelerating.

Problems Caused by Full-Voltage Starters

At the instant of energization, the locked rotor (zero-speed) is about 600% of full-load running current This heavy current then drops off gradually as the load breaks loose, and the motor comes up to speed, but causes unacceptable voltage sag on the power system, adversely affecting other loads. It can also cause shock damage and long-term excessive wear on the motor. Using this starting method may force the utility to impose a limit on the size of motors you can use, since across-the-line starting causes problems upstream into the utility's system, creating problems for other customers. The switching surges of abruptly starting and stopping create stress on the motor insulation.

Certificates

►Product Application

Zhejiang Chifon electric Co., Ltd. is a high-tech enterprise specializing in research, development, manufacture, and sales of electric drive, industrial control, and motor energy-saving technology products.

The company has completely independent intellectual property rights and several national patent innovation technologies. It has always adhered to technological innovation, with the goal of continuously meeting customer s needs, and has always adopted the design philosophy of high quality, high precision, high efficiency, and low maintenance. It has gradually become a domestic and foreign supplier of electrical transmission equipment that is worth relying on.

The company's products include general frequency conversion drives, special industrial application planes, integrated solutions and new energy products. The company's research and development team gather numerous professional and technical personnel at home and abroad, and continuously innovates on the basis of mastering high-performance vector frequency conversion technology and servo technology platforms to realize technological breakthroughs in various related fields. This enables Chifon to provide customers with the most suitable products and solutions to meet their requirements in terms of high efficiency, energy conservation, environmental protection and overall cost control.

High-quality products, continuously updated technology, and high-quality service have made the reputation of the cadres increasingly popular.

BEST SERVICE, WE DRIVE!

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