Transformer manufacturers check the causes of transformer failures
The thermal action of any group of air conditioner fans or oil pump motors in operation, or the failure of the AC circuit of the group of air conditioners, causes the AC power switch to turn off.
Transformer manufacturer's troubleshooting methods for transformers
The staff on duty immediately went to the site to check the shutdown faulty cooler, switch the working mode of the automatic backup cooler to a switch to make it run in the corresponding working mode, and then set the working mode selection switch of the failed cooler to the "stop" position , I will cut the screws for the AC power switch and report to the repair department for processing.
The low oil flow alarm of the transformer has failed.
The cause of the failure
The oil flow circuit is blocked; the oil pump is malfunctioning; the oil flow indicator is malfunctioning; the cooler circuit is working or malfunctioning.
Approach
When the transformer oil flow alarm is low, the backup cooler will automatically start. On-duty personnel go to the site to confirm the operation of the cooler, find out the faulty cooler through the abnormal oil flowmeter, and switch the working mode selection switch of the automatic standby cooler to the same position as the faulty cooler. Then turn off the faulty cooler and report the treatment to the repair department.
