Optimization and Application of Non-Electrical Quantity Protection for Dry-Type Transformers
The traditional non-electrical quantity protection for dry-type transformers relies on the temperature control box of the transformer to output alarm and trip signals to the non-electrical quantity protection device to achieve over-temperature trip.However,this logic of non-electrical quantity protection may lead to false alarms,thereby reducing the reliability of the power supply.To address this issue,it is proposed to add a temperature-measuring RTD(Resistance Temperature Detector)to the computer monitoring system inside the dry-type transformer and optimize the non-electrical quantity protection logic.Field operation practices have shown that this optimization scheme is effective,providing a reference for optimizing the non-electrical quantity protection logic for dry-type transformers.
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