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Although most all utility power in the world use either 50 Hz or 60 Hz, 400 Hz power systems are typically used in large aircraft. The reason for the higher frequency is that most of the power system parts, especially the 400 Hz alternator and 400 Hz motors are much smaller compared with similar 60 Hz equipment of the same power rating.
In aircraft, every pound saved in equipment weight, equates to about a five pound savings in gross weight during flight. When equipment weight is reduced, both airframe structure and fuel load can also be reduced.
As flux is inversely proportional to speed and speed is proportional to frequency
Higher the frequency lesser the flux required.Lesser the flux,lesser the core size.Lesser the size means less weight.Hence the pay load can be increased.
Also frequency above 400 hz not taken because the radiation takes place beyond this.
Wiki User
∙ 13y ago
Wiki User
∙ 14y ago400 HZ power supplies are lighter and smaller than 60 HZ power supplies. Due to the amount of electrical consumption in an aircraft the lighter weight of the 400 HZ systems mean increased flight distance on the smae amount of fuel.
Wiki User
∙ 12y agoIt is depending upon the rared design of manufacturer. it varies aircraft to aircraft.
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Reason for choosing 400 Hz as the number of cycles in AC?
Aircraft use 400 Hz for their power supplies because it allows them to use smaller and lighter components.
Where is fission used by humans?
In nuclear reactors, there are over 400 operating power reactors world wide
The voltage for 4 bulbs in a circuit?
The circuit voltage or the resistance of the individual bulb is needed to answer this question. Divide the total power (400 W) by the supply voltage.
Advantages of using electrolytic capacitors?
the have large capacitance value, power rating is high , and its constriction. To smooth power supply ripples.The output of a sinewave with the bottom waves cut off is a power supply without smoothing.You would get a hum in an amplifier if it wasn't smoothed by a large capacitance,say 400 Microfarads.On a 12volt supply as in a portable tv,the power supply smoother is around 2000 microfarads.The output waveform should be nearly a straight horizontal line with no ripples on it.
What is the meaning of 480 V?
480 v three-phase is a type of supply used in the US for small factories and businesses needing up to a few hundred kilowatts of power. It provides three separate 277 v single-phase supplies and lighting and other appliances are available for 277 v. 480 v split-phase is a different type of supply used in the UK and it is a single-phase supply with a centre-tap on the secondary, supplying two live 240 v lines and a neutral. This type of supply is normally used for a remote group of houses that might be 300-400 yards from a transformer fed from a single-phase 11 kV spur.
How convert 1 phase to 3phase in aircraft?
The power is generated in the form of three-phase in aircraft, and this sytem has no problem in feeding single phase loads. To conserve mass in tansformers and motors the supply works at 400 Hz.
What is the 3 phase power supply in sri lanka?
400
Reason for choosing 400 Hz as the number of cycles in AC?
Aircraft use 400 Hz for their power supplies because it allows them to use smaller and lighter components.
Which is bigger 744 or 747 aircraft?
the 744 is a code used for the Boeing 747-400 a model of the 747, the original 747 is smaller than the improved 747-400
What is the average power consumption of desktop computer?
It depends on what PC, but your power supply will normally say on the side of it. Most commonly is between 200-400 watts Power consumption is a combination of several things. The power listed on your power supply is the amount the power supply is capable of handling. The actual power consumption of the computer depends on what processes are being used, for example word processing will consume less power than heavy gaming. However, one can expect average computer use to consume 150-200W.
How many kilowatts does it take to power the Australian Capital Territory?
Average electric power used in Australia is 1.1 kW per person averaged over 1 year. ACT has 370,000 people so the average power used is 400 Megawatts. The supply probably has the capacity to supply 2-3 times that at times of peak usage, usually in hot weather when aircon is in use widely.
Why 400 HZ for air crafts?
400 Hz is used in aircraft because it allows transformers to be much smaller than if the frequency was lower. A 50 Hz transformer would weight eight times as much. But 400 Hz is not useful for transmitting over distances of more than a few hundred metres because of power losses.
How many aircraft for emirates airlines in 2012?
400
What is the definicion of power transformer?
In the electricity supply industry, the term, power transformer, is used to describe transformers that are used in the electricity transmission system (i.e. for the UK, at 400/275/132/33-kV levels), as opposed to distribution transformers that are used in the electricity distribution systems (i.e. for the UK, at 11 kV/400-230 V levels). They vary tremendously in physical size, according to their operating voltages and power ratings -typically expressed in megavolt amperes.
How can a breaker work on 60Hz and 50 Hz supplies?
A circuit breaker is like an automatic switch, designed to break a circuit if the current flowing (measured in amps) exceeds a predetermined maximum amount. The frequency at which the alternating current is changing is not relevant provided it is the normal one for which the circuit breaker has been designed to operate. In USA, Canada and other countries using similar power supply standards, that frequency is 60 Hz. In Europe and other world areas using similar power supply standards, that frequency is 50 Hz. A circuit breaker designed for use on 50 Hz or 60 Hz supplies should not be used to protect a circuit in a ship or aircraft running on a 400 Hz supply because its magnetic and capacitive components may not operate correctly. For such applications a circuit breaker designed to operate at 400 Hz must be used.
Will a EVGA 500w Bronze Power Supply (Black) work with a EVGA GeForce GTX 750 Ti 2GB?
Yes. The EVGA GeForce GTX 750 Ti 2GB requires at least a 400 watt power supply, so it will work.
What aircraft to BA fly from Heathrow to Miami?
747 400
