Texas first completed integrated electrification

Texas first completed integrated electrification

In recent days, Texas Power Supply Company has carried out the first comprehensive replacement of transformers in Caocun, an economic and technological development zone. The success of this operation provided a sufficient practical basis and theoretical basis for the successful implementation of live replacement of transformer bypass operation, and marked a new step in the city's power live operation technology.

At 8 o'clock in the morning, two workers wearing insulating clothes began to mask, wrap, and isolate the line on the bucket car, and the replacement work began. The staff explained that the previously used transformer had a rated capacity of 200 kVA. Due to the small power supply load, it was no longer able to meet the needs of residents. This work needed to be replaced by a transformer with a rated capacity of 315 kVA to ensure that the residents Electricity demand.

First, the first step is to temporarily take power from the high-voltage power supply to the temporary transformer. Through this mobile box, the vehicle is changed to provide low-voltage load to the residents of about 200 households, to ensure that the residents do not lose power. The third step is to replace the transformer. After the transformer is replaced, Low-voltage residents meet the transfer to the formal transformer. “Department of Operation and Maintenance of Dezhou Power Supply Company, Li Feng, the power distribution specialist, said.

If you replace the transformer in accordance with the traditional way of operation, you need to give residents 8 hours of power outage, and now use a new operation method to ensure that the user does not lose power during the operation. In order to ensure the smooth implementation of the energized work, the staff went to the site several times to inspect, and at the same time carefully compiled the work plan and mobilized large-scale repair vehicles such as insulation bucket armor vehicles and emergency power supply vehicles to ensure that the operation was perfectly safe.

After nearly 5 hours of operation, the new transformer was replaced. It is understood that this live working project is the most difficult one of the typical projects for comprehensive non-power-off operations that the State Grid Corporation of China promotes and is the fourth type of live working project. Adopting this kind of operation can greatly reduce the loss caused by blackouts, improve the reliability of power supply, and have good economic and social benefits.

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