Patent ID: 11879654
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  H | IPC F  H

Claim 1:
2. The transmission device of claim 1,
wherein the transmission circuit unit includes
a current-carrying unit connected to a high-voltage side or a low-voltage side, and configured to conduct or block a current,
an output resistance adjustment unit provided between the current-carrying unit and the transmission channel, and including a transmission capacity switching unit configured to perform on/off operations and a current limit resistor having a resistance value corresponding to the characteristic of the facility equipment item, the transmission capacity switching unit and the current limit resistor being connected in parallel with each other,
an overcurrent detection unit configured to detect the overcurrent when an output current of the current-carrying unit exceeds an overcurrent detection threshold, and
a state switching and holding unit configured to output a signal for turning the transmission capacity switching unit off when the overcurrent detection unit detects the overcurrent.