Frequency Converter

Static frequency converter 50hz to 60hz.
Frequency Converter 4

Static frequency converter.

Frequency converters or 50Hz to 60Hz converters are pretty popular in industrial environments. That’s because they can change the supplied frequency of voltage and protect expensive industrial equipment. Some applications also need 400Hz or 60Hz to 50Hz converters. While keeping that in mind, let’s explore more on static frequency converter 50Hz to 60Hz in particular. The solid-state unit uses Pulse with modulation (PWM) technique to generate the desired frequency. On this page, we will see working, advantages, and types of hertz converters. We hope this will help you decide to select the right style and capacity.

What is a frequency converter?

A frequency converter, sometimes known as a power frequency changer, is a device that transforms 50hz to 60 Hz or 50Hz to 400 Hz output power. There are several types of power frequency converters, including rotary converters and solid state frequency converters. Rotary type system runs a motor using electrical energy. The incoming alternating current (AC) is converted to direct current using solid-state frequency converters (DC).

You will come across the need to modulate the frequency of current for industrial applications. Frequency converters are, described, Hertz converters. The frequency converter transforms a fixed-frequency, fixed-voltage sine-wave power (line power) into a variable-frequency, the variable-voltage output used to adjust induction motor speed. Frequency converter 50Hz to 60Hz is the most commonly used unit of all configurations.

Why do you need a frequency converter?

When working on applications with power load, you will need to use a power frequency converter. For example, many machines imported to Asian or Middle Eastern countries from the USA run on 60Hz. But, the utility power supply in most of Asia and the Middle East is 50Hz. Hence, to start those machines, one needs a 50Hz to 60Hz converter.

Frequency converter 50Hz to 60Hz is commonly used in UAE, Oman, Qatar, Saudi Arabia, & Kuwait. Defense, Aviation, Marine, and Manufacturing industries need Hertz converters.

50Hz to 60Hz converter of frequency.
Frequency Converter 5

Other than above, there are several reasons which justify the use of a frequency converter. Some of the most prevalent reason behind investing in it are as follow.

For energy saving.

For motor & pump control.

Other benefits of frequency converters.

What are the types of frequency converters?

There are two main types of frequency converters available for you to use. They include static frequency converters and rotary frequency converters. Let’s deep dive and explore what these differences are.

Static frequency converter.

Static frequency converters are power converters that convert incoming AC power to DC power (rectifier stage) and then to the appropriate AC frequency and voltage. Where noise, compactness, accuracy, or flexibility are essential, static frequency converters are excellent. These units are naturally silent, making them perfect for use in offices and laboratories. Noise levels are typically less than or equal to 65 decibels (dB). Single-phase to three phases and three phases to single-phase is the most common phase conversions.

Static frequency converters are not particularly successful at beginning motor loads because of the regular motor starting surge current necessary to start motors. To begin to run, motor loads require a hefty kick (6 to 10 times full load amps). This motor starting spike, also known as “locked rotor,” current, is very temporary, lasting only a few milliseconds at its peak before decreasing to normal operating current in about a second. On the other hand, a static frequency converter doesn’t “know” that this big spike will only last milliseconds, so it shuts down to protect itself. The overload capacity of the converter must be matched to the motor starting current. Thus, it resulting in a substantial oversizing of the converter.

Airports require a frequency converter 50hz to 400Hz as a ground power unit (GOU). The advantage is that the same unit can use a 60Hz to 50Hz or 50Hz to 60Hz converter with setting change. Temperature and humidity are additional factors that affect static converters. They are, in essence, air-conditioned and are not tolerant of harsh conditions, such as salt fog. They typically last for ten years of uninterrupted service.

Rotary converter.

Incoming AC is converted into rotational mechanical power, sent to a generator, which transforms the mechanical power into electric AC output power. Electrical power measurement is in Kilowatts (kW) or Kilovolt-Amperes, whereas rotary power is measured in Horsepower (HP). This procedure necessitates frequency, voltage, and/or phase conversion. The driving motor and generator are connected in a variety of ways in motor-generator systems. The rotary frequency converter is always ideal for motor loads.

Belt coupled converters are the most straightforward and least expensive technique since they employ drive belts and pulleys to transmit energy from the motor to the generator and alter the frequency by changing the pulley ratio. Some clients are concerned about drive belt lifetime, yet drive belts do not fail in practice when correctly designed and fitted.

What are the components of converter?

When you look inside a static frequency converter, you will notice how there are multiple components present inside to cater to the intended functionality. Let’s explore what those components are.

Rectifier.

DC bus.

Inverter.

How static frequency converter works?

The functionality of a static frequency converter is to convert the current that is given in one frequency to another via an internal mechanism. There are solid-state electronic devices present within the frequency converter, which are in a position to deliver the desired functionality to you at the end of the day.

For example, a rectifier will invert the supply to produce AC with the required frequency. Then there are IGBTs, IGVTs, and thyristors, which will do the voltage conversion as per the users’ expectations. In some of the static frequency converters, you can discover a battery, which can enhance the ride-through of the converter during temporary outages in input current.

How solid state static frequency converter works.
Frequency Converter 6

Pulse Width Modulation (PWM) method.

The inverter produces a sequence of rectangular pulses with a fixed height and adjustable width. Hence, there are three types of pulses in this case. A wide set is in the center, a narrow at the start and end of the positive and negative cycle. The effective voltage of a genuine AC wave is equal to the sum of the pulse area. If sections of the pulses above (or below) the real AC wave were chopped off and used to fill in the vacant spaces beneath the curve, they would nearly exactly match. A frequency converter regulates the voltage supplied to the motor in this way.

The sum of width of pulsed and black intervals determines the frequency of the wave. Depending on the required voltage and frequency, the width and height of pulses & black interval get change. Although the internals that makes this possible is rather complicated, the end effect is stunningly simple! The frequency would still be accurate if the Pulse was continuous, but the voltage would be significantly higher than a pure AC sine wave.

How to size a frequency converter?

Once you start focusing on frequency converters, you will notice many different types of them available. Let’s see the different sizing of frequency converters available as of now and how to classify them.

50 to 60Hz converter.

For industrial applications, a 50 to 60 Hz frequency converter is ideal. These frequency converters can convert the frequency to a range of 50Hz to 60Hz and keep that stable. This will help you to get the desired level of power to proceed with your industrial applications without encountering any struggles.

400Hz frequency converter.

In the 400 Hz frequency converters, you will notice how the output power is amplified up to a frequency of 400 Hz, or 500 cycles per given second. These frequency converters are quite popular in the naval and aircraft industry. For example, you will see how they are present in the latest helicopters out there.

FAQs.

What is frequency?

What is the function of a frequency converter?

What are the applications of frequency converters?

What is a 50Hz to 60Hz converter?

What are the differences between rotary and static frequency converters?

How does a frequency converter work?

How to choose a frequency converter?

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