electrovectrocardioscope

Taking vector check of busbar differential protection in Yangfan Substation after replacing of 3-phase CTs in 201 Bus coupler as an example, this paper describes steps and notable points of vector check of busbar differential protection.

以羊范变电站母联201三相CT更换后母差保护向量检查过程为例,叙述了母差向量检查步骤和注意事项。

Design and implementation of oil consumption instrument for general airplane based on AT89C51;

基于AT89C51单片机的通用飞机耗量检查仪的设计与实现