Desgin Of Scence Check Equipment For Distributing Power Load Recording Machine

Shanghai municipal electric power company instal distributing power load recording machine on distribution transformer all over Shanghai to monitor the the operation of 10kV distribution transformers, which helps to make decisions on the safity and economic operation of electric potential. It also helps to control the line loss and manage the line loss more meticulous. More than forty thousand distributing power load recording machines have been instaled now, and there are a lot of distributing power load recording machines with problems need rehabilitating and renovating. As there are a lot factories which produce distributing power load recording machines, and the distributing power load recording machine can only berehabilitated by the factory which produce it. It is necessary to desgin a scence check equipment for distributing power load recording machine, which is useful for all the istributing power load recording machines produced by different factories.This paper gives a desgin of scence check equipment for distributing power load recording machine, which is useful for all the istributing power load recording machines produced by different factories. The equipment use the LPC2138 processor produced by Philips Commpany, and adopt real time embedded operating system uC/OS-II as software platform. It transplants uC/OS-II to LPC2138. It is divided to several tasks by the functions such as signal modulation, synchronous signal acquisition, signal sample, FFT harmonic calculation and human-computer interaction. According to the tasks, the software design is modular. The hardware includes lattice LCD display, AT45DB16(16M) large capacity memory, GPRS wireless communication module(Siemens MC52i) and Indication Error of 0.1 clamp current transformer .The scence check equipment for distributing power load recording machine has a small size, and it is able to be carried to sence easily.It is is useful for all the istributing power load recording machines produced by different factories. It has a friendly interface, large capacity memory for realtime and hsitory data and wireless communication function.It can be well applied,and it is worth of being popularized.