For monitoring temperature, insulation and mechanism of medium voltage switchgear, an on-line monitoring system was developed.
针对中压开关柜，以温度、机械和绝缘状态为监测对象，研制开发了一套在线监测装置。
At present, transmitting speed of medium and high voltage power line carrier is very low, and these kinds of carriers can be used only in low speed situation, and the number of user is limited.
目前的中高压电力线载波通信的传输速率都很低，只能应用于低速的场合，用户容量有限。
At present, transmitting speed of medium and high voltage power line carrier is very low, and these kinds of carriers can be used only in low speed situation, and the number of user is limited.
目前的中高压电力线载波通信的传输速率都很低，只能应用于低速的场合，用户容量有限。
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