switchgear

1.Terminal marking and distinctive number for auxiliary contacts of particular contactors.

英文名称： Low-voltage switchgear and controlgear for industrial use.

2.Summarize the two type's sensor of medium voltage switchgear surveillance and measuring; the protective sensor of measuring current and voltage; un-coulometer numerical values sensor.

综述了用于中压柜监视、测的两大类传感器:电流和电压测保护用传感器;非电数值传感器。