What is a frequency converter used for?
A frequency converter is an electric device that converts a current with one frequency to a current with another frequency. The voltage is normally the same before and after frequency conversion. Frequency converters are normally used for speed regulation of motors used to drive pumps and fans.
How does a static frequency changer work?
Static frequency converter is changing fixed grid power through AC to DC to AC by inner electronic parts and components, the multifunctional inverter converts the mains (50 Hertz or 60 Hertz, 120V, 240V, 400V) through conversion circuit and transforms into the required voltage and frequency power source, the output …
How many types of frequency converters are there?
2 basic types
Frequency Converter Technology: There are 2 basic types of Frequency Converters: Rotary Frequency Converters, manufactured with the use of a Motor Generator and Solid State (Static) Frequency Converter, manufactured with the use of semi-conductors and power stages.
Is an inverter A frequency converter?
What’s a Frequency Inverter? Frequency inverter also called frequency converter, it is a power control conversion device to convert normal power supply (50Hz or 60Hz) to another frequency power by inner power semiconductor on/off behaviors, to control electric motors in variable speed operations.
What is static frequency converter in a gas turbine?
Static frequency Converter (SFC). Function of SFC is to change the generator into the motor at start up process. This will rotate gas turbine for combustion. After combustion, gas turbine can turn generator then it SFC auto stop at 2000 rpm.
Can you change the frequency of electricity?
With the advent of solid state electronics, it has become possible to build completely electronic frequency changers. These devices usually consist of a rectifier stage (producing direct current) which is then inverted to produce AC of the desired frequency. The inverter may use thyristors, IGCTs or IGBTs.
Which of the following is a frequency converter?
Synchronous motor along with squirrel cage induction motor may be used as a frequency converter to generate a frequency different from that of the utility company.
Do I really need a frequency converter?
Frequency Converters are needed most often when the electronic device has a synchronous motor that turns or vibrates. Then, the device is dependent on the mains frequency to assure that the motor operating at the proper rotation or speed. This speed will depend directly on the mains frequency that it is connected to.
What is SFC in generator?
Static frequency Converter (SFC). Function of SFC is to change the generator into the motor at start up process. This will rotate gas turbine for combustion. After combustion, gas turbine can turn generator then it SFC auto stop at 2000 rpm. Then gas turbine turn a generator up to rated speed at 3000 rpm.
What is SFC in power plant?
Static Frequency Converter (SFC) is one of the important devices in reversible pumped storage power station (G/M), it can drive the speed of the dragged unit from zero to rating smoothly in a short time (usually about 240s), this paper introduce the form, working principle and sequence of the SFC in pumped storage …