| 摘要 |
<p>A firmware updating method for a digital protective relay having a plurality of modules includes receiving firmware update related information from a master device, notifying necessity of firmware update to a target module having a firmware to be updated based on the firmware update related information, receiving a firmware update ready message from the target module, and downloading a firmware from the master device into the target module and installing the downloaded firmware. Wherein the digital protective relay and a master device are connected to each other via one input/output interface. According to the method, without opening a distributing board or removing an enclosure of a digital protective relay for updating a firmware of the digital protective relay, reduction of time and costs for on-site engineering and maintenance can be expected.</p> |
