The global aircraft electrical system market size was USD 19.95 billion in 2019 and is projected to reach USD 27.29 billion by 2027, exhibiting a CAGR of 5.83% during the forecast period. The globe electrical system in an aircraft is a complex network of interconnected components that provide power to various systems and equipment. The electrical system is essential for the safe operation of the aircraft, as it powers critical systems such as navigation, communication, and lighting. In this response, I will provide an overview of the key components and functions of the aircraft electrical system.

Inforntion Source: 

https://www.fortunebusinessinsights.com/aircraft-electrical-system-market-104822

Power Generation:

The first component of the aircraft electrical system is the power generation system, which is responsible for generating electrical power. Most modern aircraft use engine-driven generators or alternators to generate electrical power. These generators are driven by the aircraft's engine and produce electrical power by converting mechanical energy into electrical energy. In addition to engine-driven generators, some aircraft may also use auxiliary power units (APUs) or external power sources to generate electrical power.

Power Distribution:

Once electrical power is generated, it must be distributed to the various systems and equipment on the aircraft. The power distribution system consists of a network of electrical wires, switches, and circuit breakers that connect the generators or alternators to the various systems and equipment. The power distribution system is designed to ensure that electrical power is delivered to the appropriate systems and equipment in the correct voltage and frequency.

Batteries:

In addition to the power generation system, most aircraft are also equipped with batteries. The batteries are designed to provide backup power in the event of a generator failure or other electrical system malfunction. The batteries are typically located in the aircraft's avionics compartment and are connected to the electrical system through a battery relay or contactor.

Avionics:

The avionics system is a critical component of the aircraft electrical system. It consists of a variety of electronic systems and equipment, including navigation, communication, and flight control systems. The avionics system is powered by the electrical system and is responsible for providing pilots with critical information about the aircraft's status and position.

Lights:

The aircraft electrical system also powers the aircraft's lighting system. This includes navigation lights, landing lights, and interior cabin lighting. The lighting system is designed to ensure that the aircraft is visible to other aircraft and ground personnel during all phases of flight.

In conclusion, the aircraft electrical system is a complex network of interconnected components that provides power to various systems and equipment on the aircraft. The system is essential for the safe operation of the aircraft and is designed to ensure that electrical power is delivered to the appropriate systems and equipment in the correct voltage and frequency.