1、 Introduction

The main function of the power control box is to control the starting of the engine; control the power supply of the battery, external power supply, electronic bus bar, external lighting, auxiliary pump and sensor; display the working status of the generator, auxiliary pump and sensor, etc.

The design refers to the requirements specified in the relevant technical documents and standards of civil aviation to ensure the reliability, universality and good electrical performance of the power control box, as well as the adaptability in various environments during the installation and ground test.



2、 Main functions

The power control box is mainly composed of generator switch, bus bar switch, light guide plate, indicator light and other control switches, mainly used for:

1. Control engine starting;

2. Supply power for control battery, external power supply, electronic bus bar, external lighting, auxiliary pump and sensor;

3. Display the working status of generator, auxiliary pump and sensor.



3、 Technical requirements

1. Power supply: ? normal 28vdc ? emergency 24VDC;

2. Rated power: 10W;

3. Working temperature: - 40 ℃ ~ + 60 ℃;

4. Storage temperature: - 40 ℃ ~ + 85 ℃;

5. Relative humidity: ≤ 95%;

6. Weight: ≤ 1.5kg;

7. Overall dimension: ≤ 150 mm (L) × 150 mm (W) × 100 mm (H).