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It's a generator that creates 400hz AC signals, instead of 50 or 60hz. 400hz is often used on ships, because the equipment (generators, Transformers) can be made much smaller.

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What does 50 hertz or 60 hertz mean in an electrical generator?

The unit hertz means "cycles per second" and is a measure of the frequency of variation of anything which changes during a set period of time, including electric current and voltage. Saying that a generator of electricity runs at 50 hertz means that its current and voltage changes regularly at a rate of 50 times per second. Saying that a generator of electricity runs at 60 hertz means that its current and voltage changes regularly at a rate of 60 times per second. The Hertz value can be changed on the generator by increasing or decreasing the speed (RPM) of the prime mover. The generator has a feed back unit that monitors the frequency and automatically applies more power to the prime mover if the load increases and the generator RPM starts to slow down. The reverse happens if the load drops off and the generator starts to speed up, the power to the prime mover will be reduced. On a diesel generator it is the fuel flow that is increased and decreased to keep the frequency at a constant value. On a water turbine it is the water flow that is increased and decreased to keep the frequency at a constant value.


What is the meaning of rpm of the turbine?

RPM stands for Revolutions Per Minute so, in short, RPM is the number of revolutions that the generator shaft turns in one minute. It seems obvious that the question is really trying to understand RPM vs frequency in Hertz. To understand this, you need to know the number of poles in the rotating and/or stationary magnetic field. In a two pole generator, for instance, an RPM of 1800, or 30 RPS (Revolutions Per Second), yields 60 Hertz power. In a eight pole generator, for instance, an RPM of 450, or 7.5 RPS, yields 60 Hertz power. The equation is simple... FHertz = SRPM / 60 * PNumber of Poles


What the letters MHz mean?

The M is short for Mega, which is 1 million. The Hz is short for Hertz, the measure of frequency. MHz is therefore short for Mega Hertz, or 1 million Hertz.


If Vab equals 400 v in a balanced Y-connected three-phase generator assuming the phase sequence is abc find the phase voltages?

400 v each phase


Can the star point of a 400 volt three phase generator be grounded to produce 240 volts?

A 400/230-V three-phase generator hase three line terminals, together with a neutral terminal. The line voltage (i.e. the voltage between any pair of line terminals) is 400 V, while the phase voltage (i.e. the voltage between any line terminal and the neutral terminal) is 230 V.

Related Questions

Why 115 volts and 400 hertz used in modern aircrafts?

Generator design.


What frequency does an airplane generator use?

An airplane generator typically operates at a frequency of 400 Hz. This high frequency is used to provide a more compact and lightweight design for the electrical system on aircraft.


What can happen if you connect a 60 hertz air conditioning unit to a 50 hertz generator?

Probable the air conditioner doesn't work well.


What does 50 hertz or 60 hertz mean in an electrical generator?

The unit hertz means "cycles per second" and is a measure of the frequency of variation of anything which changes during a set period of time, including electric current and voltage. Saying that a generator of electricity runs at 50 hertz means that its current and voltage changes regularly at a rate of 50 times per second. Saying that a generator of electricity runs at 60 hertz means that its current and voltage changes regularly at a rate of 60 times per second. The Hertz value can be changed on the generator by increasing or decreasing the speed (RPM) of the prime mover. The generator has a feed back unit that monitors the frequency and automatically applies more power to the prime mover if the load increases and the generator RPM starts to slow down. The reverse happens if the load drops off and the generator starts to speed up, the power to the prime mover will be reduced. On a diesel generator it is the fuel flow that is increased and decreased to keep the frequency at a constant value. On a water turbine it is the water flow that is increased and decreased to keep the frequency at a constant value.


Does a 400 hertz wave have a higher energy than a 800 hertz wave?

No. The higher the frequency of a wave, the higher the energy.


How many hertz in 400 nanometers?

That's impossible to say with the information provided in the question; Hertz is cycles per second and nanometers is a measure of length...


Infra red frequency Hz?

Infrared light has a frequency range of about 300 GHz to 400 THz. The frequency of infrared radiation falls between microwaves and visible light in the electromagnetic spectrum.


What is faster 400 megahertz or 633 megahertz?

Hertz is cycles per second, higher numbers are faster.


What is the wavelength of infrared in hertz?

The frequency of infrared light typically ranges from about 300 GHz to 400 THz.


220 volts 60 hertz to 220 volts 50 hertz?

Original Answer:If the power was being generated by a generator all that has to be done is slow the RPM of the generator down until the frequency meter reads 50 Hertz. On a hydro site it would be the same scenario by slowing the turbine down.Improved Answer:changing frequency is one of the more difficult things to do. Decreasing the speed of a generator is not a practical answer if the power comes from grid. You can use a variable frequency drive, or a motor generator set (Where the motor is rated for 60HZ, and the Generator is rated at 50 Hertz).For practical purposes, just get rid of the 50 hertz device and buy a new one.


What is the meaning of rpm of the turbine?

RPM stands for Revolutions Per Minute so, in short, RPM is the number of revolutions that the generator shaft turns in one minute. It seems obvious that the question is really trying to understand RPM vs frequency in Hertz. To understand this, you need to know the number of poles in the rotating and/or stationary magnetic field. In a two pole generator, for instance, an RPM of 1800, or 30 RPS (Revolutions Per Second), yields 60 Hertz power. In a eight pole generator, for instance, an RPM of 450, or 7.5 RPS, yields 60 Hertz power. The equation is simple... FHertz = SRPM / 60 * PNumber of Poles


What does Hz mean in subwoofers?

hertz. it a frequency measurment.