Micro-Processor Based Leakage Current Detector with Annunciation and Micro-Processor Based Leakage Current Realy with Free Connects

摘要

The present invention when having a short-circuit alarm function can be displayed as well as the total amount press and also by setting the fine leakage current value by using the digital data, a short circuit current reaches the set value, and ringing a warning sound or break the circuit, wherein the leakage current a short-circuit relay to check a leakage amount by storing a value of 8 circuit, 16 the circuit, has a short-circuit alarm function using a microprocessor capable of a wide selection according to electrical-distribution can be supplied from one location, such as 24 circuit, and 32 a circuit When an accident occurs, the memory of the accident date, time, power distribution lines, such as short circuit duration relates to leakage relays that can be controlled and monitored using a communication connection with an external computer.; Short-circuit relay having a short-circuit alarm function using the microprocessor of the present invention includes: a leakage detecting sensor to be installed in each of the load sensing the leakage amount of the electric wire and the load; Receiving a leakage amount from the leakage detection sensor, and a multiplexer to sequentially output the received leakage amount; An amplifier for amplifying the leakage amount and the output from the multiplexer; Analog-to-digital converter for converting the leakage amount of the analog signal type outputted from the amplifier into a digital signal; And a display for displaying the total amount of leakage; And a microprocessor for controlling the display device and the multiplexer.