device for microprocessor relay protection

tripping-operation-board based on LabVIEW

NI Liang-hua1，PAN Xiao-ming2，ZHANG Xing-ying1，TONG Chen-shi1，LI Bing1

（1. School of Electric Power Engineering，Nanjing Institute of Technology，Nanjing 211167，China；

2. Suzhou Power Supply Company，Suzhou 210008，China）

Abstract：Aiming at the requirements in running efficiently and high accuracy handling data timely，the login system，communication module，database storage and reading，relay verification module，report generation and printing. were designed. The working principle and composition of the calibration device were introduced. The upper computer software of microprocessor relay protection's trippingoperation-board intelligent calibration device was developed based on graphical LabVIEW language and database programming technology to realize the function of each part. The results indicate that the software can complete returning the relay operating board calibration value and action value efficiently，and has a multi-function interface. The software has been successfully applied in this device.

Key words：LabVIEW；microprocessor relay protection，；trip-operation-board checking；upper computer software；database