航空发动机电气附件绝缘性能测试系统设计

Design of the Test System of Insulation Performance for Electrical Accessories in Aircraft Engine

针对目前国内航空发动机电气附件绝缘性能测试时间长、精度低、误差大等问题,提出了基于数据库驱动的航空发动机电气附件绝缘性能测试系统。利用Lab VIEW图形化编程环境和工控机、兆欧表、矩阵开关之间的网络通信,实现了对任意航空发动机型号中电气附件绝缘性能的自动测试、故障诊断和定位。试验验证表明,该系统可用于电气附件的绝缘性能测试,实现了测试自动化,并且具有较高的测试速度和测量精度。

In view of the problems of long testing time, low accuracy and big error, etc. ,that currently existing in insulation performance tests for electrical accessories of domestic aircraft engines, the scheme of database driven test system is put forward. By using LabVIEW graphical programming environment and the network communication among industrial PC, mega - ohmmeter, and matrix switch, the automatic test of insulation performance, fault diagnosis and locating for electric accessories of certain model of the aircraft engine are implemented. The experiments show that the system can be applied in insulation performance test for electrical accessories, to realize automation of the tests, and it provides higher test speed and accuracy.