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At 400Hz all electrical equipment like alternators, Transformers and electric motors become smaller to supply the same power than 50 or 60Hz equipment, they are using Bosh 90 amp auto alternators same size as BMW and Mercedes with some internal modifications that is capable of up to 8.4 Kw and 70 Volt 3 phase that is then inverted to 220 Volt with a transformer
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∙ 16y ago
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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.
What is the range of frequence for normal speech?
400 Hz to about 5000 Hz
How many Hz are in 2.4 GHz?
2 400 000 000 Hz
What is the frequency of ultra violet?
400 HZ
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.
How many wavelength is it 80Hz?
400 Hz means 400 cycles per second, so each wave passes a point 400 times in one second
Why 50hz only not other frequencies can use?
There are other frequencies, such as 60 Hz, 25 Hz, and 400 Hz in common use. Please restate the question - it does not make sense.
What is the wavelength of a 440 Hz wave in air?
For 440 Hz: λ = about 423.37 miles.
What is the wavelength of 680 Hz tone moving through air?
Frequency= 0.5 Hz.
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.
Compare alternating current with direct current?
Alternating current changes direction on a set frequency such as 50 Hz, 60 Hz or 400 Hz. Direct current always flows in one direction.
Can you run 60-Hz equipment at 400 Hz?
I got the answer in a site in the reverse way. I think we can use it to infer and calculate the ratio for using 60Hz equipment at 400Hz. Running a piece of 400 Hz equipment on a 60 Hz electrical system is not advised since it will damage the device. If the same voltage is supplied to the 400 Hz device as to a 60 Hz item, it will cause the metal in the 400 Hz unit to overheat. The end result will almost surely be smoke and possibly a fire. This problem can usually be avoided, however, simply by reducing the voltage supplied to the device by a ratio of 60/400, or 0.15. A reduction in voltage to 15% of its original value at the same current will allow most 400 Hz devices to operate safely on a 60 Hz electrical system.
