The power supply company notified of a power outage
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The power supply company has notified us of a power outage – do we need to shut down the transformer in advance? We turned off all electrical devices before the power outage, so no electricity was being used. If we don’t turn off the transformer at that time and instead let the power company cut off the supply, will that cause any problems?
At the very least, hot standby should be changed to cold standby
The vast majority of electrical devices have been turned off; only a few 3kW motors remain. So a power outage like this should have little impact on the transformer, right?
That definitely won’t work! Pull and close the zip without a load.
Dear sea friend, it’s necessary to shut down the transformer during power outages! It may seem a bit cumbersome, but it’s a necessity for safety! From two perspectives, a power supply company notifies of a power outage; it is likely that there are maintenance or other work being carried out on the lines, and shutting down the transformer helps prevent reverse power flow ； Secondly, it can prevent shocks from the power grid from causing damage to transformers and other equipment.