reason for root fan overcurrent

1. It may be caused by the blockage of the outlet pipe of the rotts fan, which leads to the air impermeability inside the fan and the pressure increase, which leads to the overload of the electrical voltage of the rotts fan and the subsequent overvoltage of the current.

2.Errors in use. When using a roots fan, if the inversion fan wheel or valves do not open, it can lead to fan redirection, and in the worst case, even burn out the engine.

3. It is also possible due to the lack of maintenance of the root fan itself. If the fan is not serviced for a long time and the fan is in a state of lack of lubrication, the fan impeller will wear out without lubrication of the gear, which will increase the load of the fan on the engine. the fan is redirected.

HTTPSConnectionPool(host='www.google.com', port=443): Max retries exceeded with url: /async/translate?vet=12ahUKEwjgj_PoiIKNAxUEEVkFHZnYPGYQqDh6BAgNEC4..i&ei=v00TaKC0NISi5NoPmbHzsQY&opi=89978449&sca_esv=b8ee9af777c98fc7&source=hp&yv=3&_fmt=pc&cs=0 (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7fb5bc8471f0>: Failed to establish a new connection: [Errno -9] Address family for hostname not supported'))