Guide to aircraft electrical system
Aircraft electrical system performance
The satisfactory performance of any modern aircraft depends to a very great degree on the continuing reliability of electrical systems and subsystems. Improperly or carelessly installed or maintained wiring can be a source of both immediate and potential danger.
The continued proper performance of electrical systems depends on the
knowledge and technique of the mechanic who installs, inspects, and
maintains the electrical system wires and cables.
Aircraft Batteries
Aircraft batteries are used for many functions (e.g., ground power,
emergency power, improving DC bus stability, and fault clearing). Most
small private aircraft use lead acid batteries. Most commercial and
corporate aircraft use nickel-cadmium (NiCd) batteries.
However, other lead acid types of batteries are becoming available, such as the valve-regulated lead acid (VRLA) batteries.
The battery best suited for a particular application depends on the
relative importance of several characteristics, such as weight, cost,
volume, service or shelf life, discharge rate, maintenance, and charging
rate. Any change of battery type may be considered a major alteration.
Aircraft batteries are usually identified by the material used for the plates. The two most common types of battery used are lead acid and NiCd batteries.
Valve-Regulated Lead-Acid Batteries (VRLA) contain all electrolyte
absorbed in glass-mat separators with no free electrolyte and are
sometimes referred to as sealed batteries.
The electrochemical reactions for VRLA batteries are the same as flooded
batteries, except for the gas recombination mechanism that is
predominant in VRLA batteries. These types of battery are used in general aviation and turbine powered aircraft and are sometimes authorized replacements for NiCd batteries.
| Title: | Aviation Maintenance Technician Handbook – Aircraft Electrical System by U.S. Departmen |
| Format: | |
| Size: | 12.1 MB |
| Pages: | 106 |
| Download: | Get Download Update |
Aircraft electrical system performance
The satisfactory performance of any modern aircraft depends to a very great degree on the continuing reliability of electrical systems and subsystems. Improperly or carelessly installed or maintained wiring can be a source of both immediate and potential danger.
The continued proper performance of electrical systems depends on the
knowledge and technique of the mechanic who installs, inspects, and
maintains the electrical system wires and cables.
Aircraft Batteries
Aircraft batteries are used for many functions (e.g., ground power,
emergency power, improving DC bus stability, and fault clearing). Most
small private aircraft use lead acid batteries. Most commercial and
corporate aircraft use nickel-cadmium (NiCd) batteries.
However, other lead acid types of batteries are becoming available, such as the valve-regulated lead acid (VRLA) batteries.
The battery best suited for a particular application depends on the
relative importance of several characteristics, such as weight, cost,
volume, service or shelf life, discharge rate, maintenance, and charging
rate. Any change of battery type may be considered a major alteration.
Aircraft batteries are usually identified by the material used for the plates. The two most common types of battery used are lead acid and NiCd batteries.
Valve-Regulated Lead-Acid Batteries (VRLA) contain all electrolyte
absorbed in glass-mat separators with no free electrolyte and are
sometimes referred to as sealed batteries.
The electrochemical reactions for VRLA batteries are the same as flooded
batteries, except for the gas recombination mechanism that is
predominant in VRLA batteries. These types of battery are used in general aviation and turbine powered aircraft and are sometimes authorized replacements for NiCd batteries.
| Title: | Aviation Maintenance Technician Handbook – Aircraft Electrical System by U.S. Departmen |
| Format: | |
| Size: | 12.1 MB |
| Pages: | 106 |
| Download: | Get Download Update |
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