Frequency Converter Ac Motor
Frequency converter outputs the ac power to pure sine wave after the transformation of ac dc ac the output frequency and voltage can be adjusted within a certain range.
Frequency converter ac motor. A frequency converter or a frequency changer is an electronic device that transforms ac alternate current of a particular frequency to an ac of the other frequency. The ac motors are usually same standard motors that can be connected across ac power line. Frequency converters also called a frequency changers convert 50hz and 60hz to 400 hz power. Frequency converters are machines that convert power from one frequency to another frequency.
Frequency converters we offer decentralized frequency converters directly mounted on the motor or wall mounted versions close to the motor up to 22 kw. A wide variety of options are configurable and available at short notice. It is different from the variable frequency drive vfd used for motor speed regulation and also different from the common ac regulated power supply. A variable frequency drive is a device used in a drive system consisting of the following three main sub systems.
In a tight installation environment it is also possible to mount the converter close to the motor. Most three phase frequency converters can also accept single phase 230v or 460v power but since there are only two incoming legs the frequency converters output hp must be derated because the dc current produced is reduced. Three phase frequency converters accept three separate ac input phases and convert them to a single dc output. That is to say with a locked rotor condition zero speed the motor shaft would be developing rated torque when the rated slip frequency and rated stator magnetic field strength is circulating around the rotor.
With a frequency converter you extend the possibilities of control and individual adaptation many times over. A rotary converter is a type of electrical machine which acts as a mechanical rectifier inverter or frequency converter. Frequency converter is most commonly used. Initially this device was an electromechanical machine known as a generator motor set.
They were commonly used to provide dc power for commercial industrial and railway. A typical high efficiency induction motor needs approximately 0 75 to 1 0 hz of rotor bar frequency to develop full torque. This is done either by means of a double conversion static frequency converter or by using a motor generator set called a rotary frequency converter. The ac electric motor used in a vfd system is usually a three phase induction motor some types of single phase motors or synchronous motors can be advantageous in some situations but.
Our decentralized converters save or reduce the costs of control cabinets. It converts standard plant power 220v or 380 v 50 hz to adjustable voltage and frequency to power ac motor. This device can also vary the voltage and it is subsidiary to its core purpose.