Wattage Of Generators For Your Rv Appliances!
An AC and DC power requirement comes from generators that use fuel. They also come in different sizes that are very important for RV owners as they are excited to get one for their generators. The owners look for the size more than the type of fuel used.
When shopping for your RV generators, it is important to know that they are rated according to the number of AC watts in its capacity also determine whether you will be needing a lesser power. The smaller version of a model is producing around 2600 watts, which is capable of running lights and refrigerator of your RV; 15,000 to 20,000 watts is found in larger version and is capable of supplying some air condition units aside from the lights, refrigerator and appliances.
Every RV comes with an operation manual that includes the start-up and running watts of all the appliances in your vehicle. If it is not included, you can find the appliance wattage thru their individual manual. Once you have all the figures, you can now add the running and start-up watts together so you can come up with the total figure. This will be use when you shop for your RV generator especially for the load that it can handle.
There are things that you need to remember when owning an RV generator. You need to know the total wattage you will be using at any given time, specifically note the number of appliances that will be running at the same time. These will definitely change the initial start-up power and you have to adjust so it can handle effectively the initial power load. It is important to be cautious and once you purchase a generator it should be able to handle more output than what is originally planned to power up. Now that your wattage is known the next issue or concern that you will have to decide is the type of fuel that you want to use to power your generator. Models of generators run on unleaded fuel, diesel and propane. A helpful hint when choosing the fuel to use when in doubt as to what type will work best for your RV; is to choose the same fuel that you use on your RV coach. This will definitely make your life easier especially when you are at the gasoline station. It will give you ease and makes your gas up much faster.
some electrical generators are simply DC to AC converters?
In some industrial generators (turbine, wind) you have so supply energy so an electromagnetic field can be created, in this case they just act as DC to AC converters. there are losses in the conversion so why don`t we use this DC current?
how are dc generators used for ac applications?
according to my knowledge generators are dc machines but yet how are they connected in our homes/offices where ac power is used?
Electricity is produced by moving a rotor through an magnetic field. The electricity produced changes sinusoidally and changes polarity. This is known as AC (Alternating Current). This can be changed into DC (Direct Current) electricity by means of a half wave rectifier which uses simple electrical/electronic circuits to delete the negative part of the sinusoidal wave and leave you with just half the wave (so the name half wave rectifier), which is DC.
I think you refer to the exciter current, which in a non permanent magnet machine you do indeed have to supply, but the power required is tiny compared to the main alternator output.
In fact, it is not uncommon to find a small alternator built on the end of the main alternator shaft specifically to generate this current, particularly as by clever arrangement of diodes this machine can avoid the need for brushes, slop rings or commutators (Large alternators rotate the field and leave the heavy current coils fixed to the frame), by mounting an exciter alternator on the end of the shaft with the coil on the rotor and by mounting the rectifiers on the rotor the exciter current can be supplied without needing to have sliding contacts.
There are sound reasons for wanting to be able to control the exciter current (and hence for not using permanent magnets in the exciter), as by varying this current you can vary the terminal voltage at any given shaft speed which is important for setting reactive power when operating in a distribution network.
To give an example, a large machine may need 10A @ 600V DC field to make 11KV AC at 100A (6KW field power, 1.1MW output power), the field power ends up as waste heat in the windings, but so what? The prime mover is inputting a little over a Megawatt and you are getting most of that out as AC.
No machine is (or can ever be) 100% efficient, but the loss from the field coils will be small compared to losses from the output coil winding resistance and the iron losses.
Regards, Dan.
How do you convert Line voltage into DC and AC voltage Generators?
Wish to know the building blocks of AC and DC Generators. How 230 V line voltage is converted into 28 volts DC and 115 V / 400 Hz three phase AC voltage generator ?
How do DC generators work?
And if possible, please include the formula for inducing an EMF in a DC generator, including its derivation. Thanks.
How does a DC generators throttle actuator’s sensor work?
How does a throttle actuator/control for a generator know to increase decrease throttle based on electrical current demand?
I’m thinking of building a DC generator using a diesel engine and a PMAC motor but am confused as to how I will vary the engine speed automatically to meet the varying current demand. Thanks!
e=ir
if you sense the current load by a line resistance of perhaps 0.1 ohm, you can increase or decrease the RPM of the generator as the current rises and falls
off of gas
230 VAC to 28 VDC ?
You need a transformer to convert 230 to somewhere about 28 VAC, then rectifiers, filters and a regulator to convert the AC voltage to 28 VDC.
The exact value of the AC secondary of the transformer depends on many factors, such as degree of regulation needed, ripple requirements, etc.
An alternate method used in small lightweight supplies is as follows:
Use a bridge rectifier and capacitor to convert the 230 VAC to about 320 VDC. That is fed into a DC-DC converter which first converts the 320 VDC to a square wave at 20-30 kHz, which goes to a small transformer to convert it to about 25 VAC at 20 kHz. Then fast regulators and a capacitor convert it back to DC.
All of these descriptions are very simplified.
The second part of your question about 115 V / 400 Hz three phase AC, I don’t understand. Do you want to convert the 230 VAC 50Hz to 115 VAC 400 Hz 3 phase? Probably a motor-generator set is the best way to do this.
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