| 摘要 |
PROBLEM TO BE SOLVED: To obtain a system interconnection inverter device that prevents a switching element for composing an inverter part from being damaged thermally, when abnormality in temperature occurs inside a device, quickly detects failure, such as improper operation and breakdown caused by abnormality in temperature in other heat generation parts for composing the inverter part, and provides higher safety. SOLUTION: This system interconnection inverter device is equipped with an inverter part 3, that converts DC power that is supplied from a solar cell or the like to AC power, a switching means that opens and closes the connection between the output of the inverter part 3 and a system power supply, a first temperature-sensing part that senses the temperature of a switching element for constituting the inverter part 3, and a second temperature-sensing part that senses the temperature of other heat generation parts for composing the inverter part 3, and secures safety and reliability of the device according to information on the temperature. |
