A circuit detection and protection design based on MCS 51
Abstract:At present, electricity is the foundation of economic development and social life.Most of the technological devices are related to electricity, which make electricity become more and more important.With the economy and technologydevelopment at high speed, the number and types of household electrical equipment become more and more.At the same time, electric safety problem becomes more and more prominent.Most current circuit protection devices are circuit breakers, which can quickly cut out the circuit in case of circuit failure and protect the safety of electrical equipment, lines.However, the type of circuit fault could not be determined, which could not bring good help to maintenance and increase the workload of maintenance personnel.The purpose of this design is to design a relay protection device that can detect the type of circuitfault.If circuit overload,it can also remind users to cut off part of the load, reduce the workload of maintenance personnel. This design can also be used in other circuit protection.
Key words:Relay protection; Current detection; MCS 51; LCD; AD conversion