电气设备剩余电压的可靠性研究与方案设计

Reliability Research and Scheme Design of Residual Voltage of Electrical Equipment

在设备电路的设计研发过程中,由于电路元器件自身存在的设计误差和电容电阻的复杂连接,设备断电时无法避免的会出现剩余电压问题。过高的剩余电压可能导致人员触电,存在安全隐患。本文就电气设备断电后电路中存在剩余电压这一现象分析其产生的原因,并通过将设备电路等效为简单的RC并联电路推导剩余电压理论计算公式,根据剩余电压产生的机理提出降低剩余电压的技术方案,同时验证方案的可靠性。

During the design and development of the device circuit,due to the design error of the circuit component itself and the complex connection of the capacitor resistance,the remaining voltage problems cannot be avoided when the equipment is turned off.Excessive surplus voltage may lead to electric shock and hidden safety hazards.This article analyzes the reasons for the phenomenon of the remaining voltage in the electrical equipment after power-off,and calculate the formula of the remaining voltage theory by equivalent the equipment circuit as a simple RC parallel parallel and connected circuit.The technical solution of voltage,while verifying and evaluating the impact of the plan on the back-end circuit.