What Are The Reasons for Operating a Centrifugal Pump with VFD?

Posted By veikong on May 26, 2020

Centrifugal pumps are basically sized for operating at near or neat the best efficiency at maximum flow. The requirement of maximum flow, while, frequently occur for a very short period during the operating cycle with the result that some method of flow is required. The flow control has used valves that increases system pressure, inherently …

What To Know About Low Frequency and High Frequency Inverter

Posted By veikong on April 20, 2020

An inverter is an electronic device that changes the current and transforms the direct current into alternating current. Direct current flows in only one direction while alternate current flows in an alternating form. All home appliances require alternating current and if DC flows through them an appliance gets fused. Direct current is typically generated by …

4 Solar Water Pump System Components Used in Irrigation

Posted By veikong on March 26, 2020

Solar water pumps are relatively a new concept in mechanics which are widely used in domestic, agricultural, irrigation and industrial settings. Through the advanced solar panels, it eliminates the cost of energy and offers a more feasible option that uses energy directly from the sun for pumping water. Since solar technology continues to grow, it …

How to Connect a Variable Frequency Drive to a 3-Phase Motor

Posted By veikong on February 20, 2020

Variable frequency drives (VFDs) are one of the most efficient methods of controlling motors which are usually designed to operate at a single speed. Depending on the VFD and how it is installed, a VFD operates on single and 3-phase input and the output of the desired voltages. Because the motors are generally designed with …

3 Issues of Using VFD on Single Phase Power Supplies

Posted By veikong on January 8, 2020

A solar pump inverter converts the direct current of solar panel into alternating current for powering any pump driven by a three-phase motor. It also provides complete pump protection against surges, dry running, low frequency, overheating, and overloads. It is one of the most needful devices for any solar water pumping system to work efficiently …

What is frequency Inverter and Where It Can Be Used?

Posted By veikong on

A frequency inverter is an electrical device that changes the current and transforms DC (Direct Current) into AC (Alternating Current). It is specially designed and used to control the speed of the AC induction motor without affecting the electric consumption, impedance, torque, and magnetic flux of the motor. It’s integrated into an operator interface to …

3 Reasons to Control Compressor Using a Variable Frequency Drive

Posted By veikong on December 27, 2019

A variable frequency drive is a type of motor controller that initiates electric motor by changing the frequency and voltage supplied to the electric motor. There are many other names of variable frequency drives such as variable speed drive, adjustable frequency drive, adjustable speed drive, AC drive, microwave, and inverter. It changes the capacity of …

What is The Difference between 3-Phase and Single-Phase VFD?

Posted By veikong on November 26, 2019

The power supply for electronic motors used across industries is mainly classified into two types that are single-phase and three-phase systems. The single-phase is used in a place where less power is required for running loads. And single-phase means the power transmission line is in the form of a phase line and a zero line …

What are Solar Pump Inverter, Their Features, Benefits, and Applications?

Posted By veikong on October 16, 2019

The solar pump is a type of electric converter that converts the variable direct output of a photovoltaic solar panel into a utility frequency alternating current. This AC current can be fed into an electric grid or used by a local, off-grid electric network. It has special functions that are adapted for use with photovoltaic …

5 Effective Ways That VFD is Used to Save Power in Industrial Applications

Posted By veikong on September 4, 2019

Variable Frequency Drives (VFDs) is an electronic device that converts an alternating current of one frequency to another frequency that gives an opportunity to run the AC motors in variable speed and also provide an opportunity for saving power on many industrial applications. It is a green saving product that matches the amount of workload …

How to Control Motor Speed Using VFD? How it Help in Energy Efficiency?

Posted By veikong on August 9, 2019

What is a VFD? What is a VFD?A VFD (Variable Frequency Drive) is a type of motor controller. It drives an electric motor by varying the frequency and voltage supplied to the electric motor. There are many other names of VFD that are variable speed drive, adjustable speed drive, adjustable frequency drive, AC drive, inverter, …

Solar Pump Controller and Their Working Principle

Posted By veikong on July 9, 2019

Solar pump controller is an electronic device that controls the circulating pump to harvest more heat as possible from the solar panels and it also protects the system for overheating. When there is heat available in the panels the controller turns the circulating pump and moves the working fluid through the panels to the heat …

How a VFD (Variable Frequency Drive) Can Help You Save Energy?

Posted By veikong on May 7, 2019

VFDs (Variable Frequency Drives) are used for less frequency than fixed speeds controllers. It can be used efficiently to ensure savings in production cost and significantly reduce energy use. It uses an AC motor to control pump and fans in a system without using dampers and valves. A fixed speed motor has to be controlled …

Why VFD is Required in Electrical Motor? What is Its Functionality?

Posted By veikong on April 9, 2019

A Variable Frequency Drive (VFD) is an electronic device that is also known as variable voltage and frequency drive and is also used to control AC induction motor speed. It is due to the inception of VFD that the AC Motors have become prominent again and are now efficiently used in electric motor systems across …

Use of Variable Speed Drive in Fans, Pumps and Air Compressor

Posted By veikong on January 23, 2019

Variable Speed Drives have become the prominent motor tools when it comes to optimise the speed of HVAC equipment. Variable speed drives are ideal and effective to control the connected load speed, ramping up and down the motor speeds, thereby limiting the energy usage and improving the performance and durability of the equipment. Owing to …

New Series VFD500 is coming to shock the world

Posted By veikong on August 9, 2017

New series powerful drives VFD family 500 series will come to us soon at the end of this year It is Closed loop Vector Control Frequency Inverter 3-phase 380V/415V(±20%),0.75~630kW VFD500 series high-performance vector control inverter supports multiple international leading control technology such as: improved vectorized VF control(VVF), speed sensor less vector control(SVC), and encoder feedback …

Variable speed drive inverter wiring

Posted By veikong on

The variable frequency drive main circuit terminals shown as below Figure. (1) The frequency inverter drive three phase AC input terminals (r/l1, s/l2, t/l3) The power line’s input terminals connect to 3 phase AC power through line protection or leakage protection breaker, it does not need to consider the connection of phase sequence. What needs …

Variable Frequency Drive Installation and Notes

Posted By veikong on

1) Ambient temperature Variable frequency drive just like other electronic devices, has certain requirements about the temperature around it, generally its -10 to +40 °C. As the AC variable frequency drive internal high-power electronic parts are easily influenced by the working temperature, in order to ensure the safety and reliability of the variable speed drive, …

Variable frequency AC drive control mode

Posted By veikong on

Generally variable frequency AC drive has following control modes: open loop vector control, V/F control, open loop torque control, closed loop vector control, slip frequency control. Open-loop vector control Apply to high performance general-purpose application with no PG encoder, one AC drive controls an electric motor only. Such as machine tools, centrifuge machines, wire drawing …

AC drive inverter parameters setting (3)

Posted By veikong on

7. Torque limit It can be divided into drive torque limitation and brake torque limitation. It is based on the inverter output voltage and current values and calculates torque by CPU, to make the impact load recovery characteristics of the deceleration and constant speed running improved significantly. The torque limitation function can achieve automatic acceleration …

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