Studentshare
Subjects
Physics
Aircraft electrical power generation and distribution

Aircraft electrical power generation and distribution - Coursework Example

Summary

The output is 115/200 volts, three−phase, 400 Hz frequency, with normal capacity of 20 KVA and overload capacity of 30 KVA. It is a two−stage brushless, two−bearing design, with stationary and rotary…

Download full paper File format: .doc, available for editing

GRAB THE BEST PAPER93.3% of users find it useful

Aircraft electrical power generation and distribution

Read Text Preview

Subject: Physics
Type: Coursework
Level: Undergraduate
Pages: 8 (2000 words)
Downloads: 2
Author: npaucek

Extract of sample "Aircraft electrical power generation and distribution"

Download file to see previous pages

An over temperature switch is installed in the generator. The switch contacts close when the stator windings reach a temperature of 210 degrees C and automatically reset when the temperature returns to a safe level. The output frequency of the generator is 400 Hz and is controlled by the GCU. The PMG supplies electrical power to generator control unit (GCU). This power is used to control the generator circuit. The PMG has 3 phase windings in the drive part of the IDG. A voltage regulator supplies DC power to the stator windings of the exciter.

In the rotating rotor a 3 phase voltage is generated and then rectified to DC by diodes. The rotating DC field, thus obtained, is used to control the 3 phase main generator; the output is supplied to the generator line contactor (GLC) and from there to the generator control unit. This output from the generator is used to control the voltage regulator, which now makes sure that the main output is 115 ± 2.5 V. the frequency controller uses the PMG voltage and makes sure that the generator operates at 12000 ± 120 rpm to obtain a frequency of 400 ± 4Hz.

The GCR is controlled by a logic circuit and is energized when the frequency is above 365 ± 2.5 Hz. When energized, voltage regulation starts. When voltage and frequency are correct the PRR is energized and the generator line contactor is energized through the action of the AC bus transfer system. When in operation, the GCU examines and continuously the generator system. To achieve this several protective functions are built into the GCU including; The drive ensures that the generator only operates at a given rpm, irrespective of the engine rpm and generator load.

The brushless AC generator produces the desired power. When the input shaft rpm increases or decreases the output frequency varies respectively. This variation is detected by the GCU. The GCU relays an electrical signal to a

...Download file to see next pages Read More

Cite this document

APA
MLA
CHICAGO

(“Aircraft electrical power generation and distribution Coursework - 1”, n.d.)
Retrieved from https://studentshare.org/physics/1596085-aircraft-electrical-power-generation-and-distribution

(Aircraft Electrical Power Generation and Distribution Coursework - 1)
https://studentshare.org/physics/1596085-aircraft-electrical-power-generation-and-distribution.

“Aircraft Electrical Power Generation and Distribution Coursework - 1”, n.d. https://studentshare.org/physics/1596085-aircraft-electrical-power-generation-and-distribution.

Cited: 0 times

CHECK THESE SAMPLES OF Aircraft electrical power generation and distribution

Construction and operation of aircraft fluid systems

The turbine engine and the pneumatic power generation component are integral.... Largely, the engine component is responsible to the pneumatic power generation.... The constructional design of the power generation component takes into consideration the needs to regulate pressure and temperature.... ) Explain the function and the operation of aircraft pneumatic systems and their associated status indicators, your answer should include sources of pneumatic power supplies and the systems they may be used to operate such as thermal anti icing, hydraulic reservoir pressurization, oxygen systems and anti g systems....

12 Pages (3000 words) Coursework

Cargo Aircraft Fire Supression

Automatic fire detection systems can detect fires which may not be detected by aircraft crew until controlling the fire becomes difficult, or even impossible.... Of the two, heat sensing is used in the cargo holds. A drawback with these systems is the high frequency of false alarms which result in aircraft turnbacks, urgent landings and AOG (aircraft on ground) scenarios.... Since the aircraft crew has no way to visually verify the presence of a fire, any alarm has to be treated as a real fire....

7 Pages (1750 words) Term Paper

Are Fuel Cells a Good Substitute to Gasoline and Are They the Best One

However, the Pratt and Whitney Aircraft Division of the United Aircraft Corporation is planning a 26-megawatt portable fuel cell generator that will produce enough electrical power for 20,000 people.... hellip; Fuel cells may become a widely used source of power of transport, industry and at home.... Fuel cells are more efficient than conventional power plants because there are no turbines or other mechanical devices to waste energy through friction or heat....

5 Pages (1250 words) Research Paper

Introduction to Supply Chain Management

The reason for choosing this company is that there was a huge outsourcing problem involving the logistics of the… Research has shown that Boeing would use 20 percent less fuel for flights by designing an aircraft with a lightweight lithium-ion battery system.... In addition, its other products are electronics, weapons satellites, defense system, military aircraft, systems of information and communication that are advanced et cetera....

8 Pages (2000 words) Essay

A Portfolio Analysis of Conglomerate Diversification

In what can be called their value proposition, General Electric offers its customers value in various segments such as power and water, oil, gas, home, and business solutions, transportation, health care, and financial services.... The case study "A Portfolio Analysis of Conglomerate Diversification" demonstrates managers who want to improve the effectiveness of their business model and organization, as well as to increase their own ability to manage, use diagnostics/assessments....

10 Pages (2500 words) Case Study

Electronic Drive Motors Used in Naval Vessels

nbsp; The conversion technology used should be efficient enough to convert and distribute the shipboard electrical power for the development of a propulsion system with more reliability, survivability and power quality.... propulsion and generation of electricity for shipboard and other uses and run very often at the most optimum and fuel-efficient speeds.... The guns and other security equipment installed on a naval vessel are also mechanically operated and in order to convert the operation completely into an electric system, the mechanical system installed on the ships will also need to be converted to electric power....

15 Pages (3750 words) Term Paper

Aircraft Electrical Power Generation & Distribution

This essay “aircraft electrical power generation & Distribution” will look into the explanation of the working of three phase alternator in an aircraft needed.... hellip; The author explains that voltage regulation in an alternator of an aircraft is controlled in a manner that its deficiency or excess is compensated appropriately.... oltage regulation in an alternator of an aircraft is controlled in a manner that its deficiency or excess is compensated appropriately....

6 Pages (1500 words) Assignment

Volcanic Ash, Climatic Hazards and Impacts

… The paper "Volcanic Ash, Climatic Hazards and Impacts" is a good example of a case study on environmental studies.... nbsp;A volcanic eruption occurs when ash, molten rock, and gases are poured out of a volcanic fissure or a vent.... Volcanoes can either be active, dormant or extinct.... Iceland is full of active volcanoes, and the largest eruption occurred in 2010 send ash plume to great heights and over the Atlantic Ocean....

8 Pages (2000 words) Case Study