本装置采用专用芯片，实现多种电压等级全范围等精度测量，同时输入阻抗高，不影响原车的绝缘状况；
It use special chip to realize full-range and equal observations for different voltage rate, without additional insulation faults for high input impedance .
在我国，针对高电压等级的电缆绝缘检测技术受到了普遍的重视，但是针对低压配电网的电线电缆绝缘检测技术的研究却进展不大。
This thesis focuses on the research and development of the insulation resistor measuring for low-voltage wire and cable. The first part of the thesis has a review-like character.
ABB是世界领先的空气和气体绝缘变电站供应商，电压覆盖等级高达1100千伏。
ABB is the world's leading supplier of air- and gas-insulated substations covering a range of voltage levels up to 1,100 kV.
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