| 摘要 |
PROBLEM TO BE SOLVED: To provide an energy measuring device that can communicate with an external monitoring device with securing neither an additive space nor an additive wire in a distribution switchboard.SOLUTION: An energy measuring device compatible with a breaker in a distribution switchboard has a voltage input terminal, a voltage measuring unit which is electrically connected to the voltage input terminal to measure a voltage value, an energy measuring unit for measuring energy usage information by using the measured voltage value, and a communication unit for transmitting/receiving the energy usage information to/from an external monitoring device or a server on the Internet. The voltage input terminal is configured to fix the energy measuring device to a distribution switchboard, and supplied with a voltage from a bus bar of the distribution switchboard. The energy measuring device is configured to be compatible with a branch breaker coupled with the bus bar of the distribution switchboard. |
