General description of an aircraft electrical system: [Essay Example], 624 words GradesFixer
exit-popup-close

Haven't found the right essay?

Get an expert to write your essay!

exit-popup-print

Professional writers and researchers

exit-popup-quotes

Sources and citation are provided

exit-popup-clock

3 hour delivery

exit-popup-persone
close
This essay has been submitted by a student. This is not an example of the work written by professional essay writers.

General description of an aircraft electrical system

Download Print

Pssst… we can write an original essay just for you.

Any subject. Any type of essay.

We’ll even meet a 3-hour deadline.

Get your price

121 writers online

blank-ico
Download PDF

An Aircraft Electrical System is a self contained network of components that generate, transmit, distribute, utilize and store electrical energy.

General Description

An electrical system is an integratal and essential component of all but the most simplistic of aircraft designs. The electical system capacity and complexity varies tremendously between a light, piston powered, single engine GA aircraft and a modern, multiengine commercial jet aircraft. However, the electrical system for aircraft at both ends of the complexity spectrum share many of the same basic components.

All aircraft electrical systems have components with the ability to generate electricity. Depending upon the aircraft, generators or alternators are used to produce electricity. These are usually engine driven but may also be powered by an APU, a hydraulic motor or a Ram Air Turbine (RAT). Generator output is normally 115-120V/400HZ AC, 28V DC or 14V DC. Power from the generator may be used without modification or it may be routed through transformers, rectifiers or inverters to change the voltage or type of current.

The generator output will normally be directed to one or more distribution Bus. Individual components are powered from the bus with circuit protection in the form of a Circuit Breaker or fuse incorporated into the wiring. The generator output is also used to charge the aircraft battery(s). Batteries are usually either of the lead-acid or NICAD types but lithium batteries are becoming more and more common. They are used for both aircraft startup and as an emergency source of power in the event of a generation or distribution system failure.

Basic Aircraft Electrical Systems

Some very simple single engine aircraft do not have an electrical system installed. The piston engine is equiped with a Magneto ignition system, which is self powering, and the fuel tank is situated so it will gravity feed the engine. The aircraft is started by means of a flywheel and crank arrangement or by “hand-proping” the engine. If an electric starter, lights, electric flight instruments, navigation aids or radios are desired, an electrical system becomes a necessity. In most cases, the system will be DC powered using a single distribution bus, a single battery and a single engine driven generator or alternator. Provisions, in the form of an on/off switch, will be incorporated to allow the battery to be isolated from the bus and for the generator/alternator to be isolated from the bus. An ammeter, loadmeter or warning light will also be incorporated to provide an indication of charging system failure. Electrical components will be wired to the bus-bar incorporating either circuit breakers or fuses for circuit protection. Provisions may be provided to allow an external power source such as an extra battery or a Ground Power Unit to be connected to assist with the engine start or to provide power whilst the engine is not running.

Advanced Aircraft Electrical Systems

More sophisticated electrical systems are usually multiple voltage systems using a combination of AC and DC buses to power various aircraft components. Primary power generation is normally AC with one or more Transformer Rectifier Unit (TRU) providing conversion to DC voltage to power the DC busses. Secondary AC generation from an APU is usually provided for use on the ground when engines are not running and for airborne use in the event of component failure. Tertiary generation in the form of a hydraulic motor or a RAT may also be incorporated into the system to provide redundancy in the event of multiple failures. Essential AC and DC components are wired to specific busses and special provisions are made to provide power to these busses under almost all failure situations. In the event that all AC power generation is lost, a static Inverter is included in the system so the Essential AC bus can be powered from the aircraft batteries.

Remember: This is just a sample from a fellow student.

Your time is important. Let us write you an essay from scratch

100% plagiarism free

Sources and citations are provided

Cite this Essay

To export a reference to this article please select a referencing style below:

GradesFixer. (2019). General description of an aircraft electrical system. Retrived from https://gradesfixer.com/free-essay-examples/general-description-of-an-aircraft-electrical-system/
GradesFixer. "General description of an aircraft electrical system." GradesFixer, 15 Jan. 2019, https://gradesfixer.com/free-essay-examples/general-description-of-an-aircraft-electrical-system/
GradesFixer, 2019. General description of an aircraft electrical system. [online] Available at: <https://gradesfixer.com/free-essay-examples/general-description-of-an-aircraft-electrical-system/> [Accessed 13 July 2020].
GradesFixer. General description of an aircraft electrical system [Internet]. GradesFixer; 2019 [cited 2019 January 15]. Available from: https://gradesfixer.com/free-essay-examples/general-description-of-an-aircraft-electrical-system/
copy to clipboard
close

Sorry, copying is not allowed on our website. If you’d like this or any other sample, we’ll happily email it to you.

    By clicking “Send”, you agree to our Terms of service and Privacy statement. We will occasionally send you account related emails.

    close

    Attention! this essay is not unique. You can get 100% plagiarism FREE essay in 30sec

    Recieve 100% plagiarism-Free paper just for 4.99$ on email
    get unique paper
    *Public papers are open and may contain not unique content
    download public sample
    close

    Sorry, we cannot unicalize this essay. You can order Unique paper and our professionals Rewrite it for you

    close

    Thanks!

    Your essay sample has been sent.

    Want us to write one just for you? We can custom edit this essay into an original, 100% plagiarism free essay.

    thanks-icon Order now
    boy

    Hi there!

    Are you interested in getting a customized paper?

    Check it out!
    Having trouble finding the perfect essay? We’ve got you covered. Hire a writer

    GradesFixer.com uses cookies. By continuing we’ll assume you board with our cookie policy.