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Transformer operation specification

Transformer operation specification:
In the event of a power outage, the load side is stopped first, and then the power supply side is stopped; when the power is turned on, the power supply side is sent first, and the load side is sent back.
The reason:
a. When there are multiple power supplies, power failure in the above order can prevent reverse charging of the transformer. If the power supply side is stopped first, failure may cause protection malfunction or refusal to move, prolong the time for removing the fault, and extend the power outage range.

Transformer operation specification
b. Step by step power transmission from the power supply side, in case of failure, it is convenient to check the power transmission range.
c. When the load side bus voltage transformer is equipped with a low-frequency load shedding device and no current is blocked, the power supply is first stopped at the power supply side. The feedback of the large synchronous motor may cause the low frequency load shedding device to malfunction.

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