What is the function of the TRUs and inverter in the ERJ systems?

The function of the TRUs (Transformers Rectifiers Units) and inverters in the ERJ systems is essential for managing the aircraft’s electrical power. A TRU serves to convert the alternating current (AC) from generators into direct current (DC) power, which is commonly used for various onboard systems. Meanwhile, an inverter takes this DC power and converts it back into AC. This process allows for the proper distribution of electrical power throughout the aircraft, ensuring that both types of power are available as needed for different systems and components.

In the context of the aircraft's electrical system, having both the TRUs and inverters functioning correctly is vital to provide reliable power to avionics, lighting, and other essential systems that depend on different forms of electrical energy. Understanding their functions helps in troubleshooting and maintaining the aircraft's electrical safety and efficiency.