send a contact 什么意思(电气)? 1. 关于接地: On each high voltage feeders will be provided: 1 directional ground electronic relay or over current ground electronic relay, and it well send a trip contact for motor feeders located in classified area and (send) alarm contact for the other feeders. 发送跳闸/报警触点??(只听过发送信号,contact如何send?) 查看更多1个回答 . 3人已关注