After the oil circulating transformer is forced to send out the signal of "full stop of the cooler", the personnel on duty should immediately check the cause of power failure and resume the operation of the cooling device as soon as possible. For transformers without standby coolers, the personnel on duty shall apply to the on-duty dispatcher for reduction.

Load, otherwise, the transformer should apply for withdrawal from operation, in order to prevent the transformer from running beyond the specified non-cooling operation time, resulting in overheating damage. When the transformer sends out the "standby cooler input" signal, check the fault cause of the faulty cooler and do everything possible.

Fix it.