Analysis and Improvement of Air-cooling System of Main Transformer in UHV Substation
Forced oil and forced air(OFAF)cooling mode used in the main substation of UHV substation is analyzed ac-cording to their drawings.The main contents include the power supply switching circuit,the cooling system control loop and full stop tripping circuit. Considering the problems which may happen while the system is operating,the improvement of the circuit in this cooling system is also mentioned in this paper.
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