电源的综合保护设计

Design for Power Synthetic Protection

提出一种三相电源保护电路,叙述了电路的基本构成和工作原理,给出了具体电路原理图,阐明了电路具体工作过程,介绍了电路的具体调试方法,提供了一种结构简单、安全可靠、应用灵活、可对电源过流、过压和缺相故障实现快速综合保护方案.增加少量元器件还可实现欠压保护.

A new protection circuit with three-phase power supply is introduced.The basic structure and principle of the circuit are presented,and the practical schematic diagram is provided.The operating process and debugging methods are given.With the advantages of simple,safe and reliable structure,flexible application,it can be applied to the power protection against the faults including over-current, over-voltage and lack-phase. The lack-voltage protection can be achieved by adding a few components.