Electric arc detection device with multifunctional monitoring

The utility model discloses an electric arc detection device with multifunctional monitoring. The electric arc detection device comprises an electric arc detection module, a current detection module, an electric leakage detection module, a voltage detection module, a master control module, a liquid crystal screen display module and an alarm module. The electric arc detection device also comprises electricity utilization equipment of which one end is connected with a null line N and a live line L which penetrate through a current transformer and a voltage transformer. All the detection modules are interconnected with the transformers so that current or voltage is transformed and then monitored by the detection modules. The results of monitoring are transmitted to the master control module to be processed and then the liquid crystal screen display module and the alarm module are driven to work. The size of current and voltage is displayed by the liquid crystal screen display module. The alarm module generates alarm sound to inform a user of a fault of a household appliance so that solutions are timely taken. When the electricity utilization equipment works, power supply working voltage, working current, electric leakage and fault electric arc state can be detected simultaneously and detection range of fault electric arc is enlarged so that generation of electrical fire hazard can be effectively prevented.