The Development Of The New Type Of High Reliability Portable Lightning

Lightning as a natural phenomenon,but also a kind of natural disasters,has more and more impact on our daily lives,and cause fires,casualties,damage incidents involving electricity and communications facilities.China’s current emphasis on lightning monitoring has yet to be improved,did not form a set of effective the lightning current monitoring system.This paper discusses the lightning characteristics and measurement principle based on self-developed Rogowski coil,as the lightning current measurements.There is no direct electrical contact with the circuit under test,with a frequency bandwidth,simple structure,etc.,On this basis,the design of a lightning current counter TI’s ultra-low-power microcontroller MSP430 as the core.The counter can be lightning current discharge time and place for the collection,the data stored in the internal FLASH.In count at the same time,through the GPRS wireless module,real time data transmission to the end.For lightning high-risk areas field data acquisition,greatly reduce the maintenance quantity.Wireless module,the use of the Siemens company MC35i,this chip with high efficiency and low transmission current,through the serial port to send command AT the realization of short message to send,small volume,the cost performance is high.In this paper,the hardware and software of the counter,on the basis of related through experiment that this set of system has small volume,convenient installation,dynamic performance is good wait for an advantage,to meet the basic requirements of lightning current count.To solve the traditional arrester using cascading way count,added to the system and residual pressure,reduce arrestor protection performance shortcomings.At last,it puts forward the counter remains to be perfect place.