A method and a device for insulation monitoring, as well as a system for generating electricity from renewable energy are provided. Alternating-current insulation monitoring is constantly performed at the alternating-current side in a period during which t...

A battery resistance calculation apparatus according to one embodiment of the present invention comprises: a measurement circuit connected between a chassis and either the (+) terminal or the (-) terminal of a battery pack; a voltage measurement unit for m...

The present invention relates to a contact device and a characteristic measuring device including the same, which may minimize a contact failure of the contact device and increase accuracy and efficiency of a process by adding a motion such as rotation, to...