BUS protection PANEL, a module (black box) containing electrical circuits for control and protection of electrical alternating current supply to the airplane.
汇流条防护板，黑匣子式的组件，内含控制和保护飞机交流电源的电路。
2
Timing circuit is usually made up of power supply unit, panel circuit and timing board, it is the digital control part of power source.
定时电路一般由电源模块、面板电路和定时板组成，是功率源中的数字控制部分。
3
The article analyses the problem that Parkins auto Diesel is not able to auto-start to supply power at Mains failure, and puts forward the reform solution to ATS controlpanel circuit.