Accessories such as oil conservators, breathers, sealing gaskets, and oil level gauges work in concert to store and compensate for transformer insulating oil, accommodating volume fluctuations caused by temperature changes during operation and maintaining internal pressure balance, while effectively sealing out external moisture, dust, and impurities. These components prevent the insulating oil from absorbing moisture, degrading, or oxidizing, thereby protecting core components-such as the iron core and windings-from corrosion and insulation deterioration; this fundamentally ensures the long-term integrity of the transformer's insulation system and prevents critical faults like internal surface tracking or dielectric breakdown.
The primary function of heat dissipation and cooling accessories is to regulate the equipment's operating temperature and eliminate risks associated with overheating. As the transformer operates under load, the iron core and windings continuously generate heat; components such as radiators, cooling fans, and cooling tubes utilize oil circulation to efficiently transfer and dissipate this accumulated internal heat into the surrounding environment. Continuous cooling prevents issues caused by prolonged high-temperature operation-such as insulation aging, coil overheating, and output limitations-thereby ensuring stable, uninterrupted, full-load operation over the long term. These accessories are particularly crucial during summer heatwaves or heavy-load conditions, significantly reducing the likelihood of equipment trips due to overheating and extending the equipment's service life.
Accessories dedicated to safety protection and electrical connections facilitate power transmission, structural stability, and fault protection, serving as a critical line of defense for safe operation. Components such as high- and low-voltage bushings, terminals, and fasteners ensure electrical continuity, secure wiring connections, and structural reinforcement, thereby guaranteeing smooth, stable power transmission and preventing overheating faults caused by loose connections or poor contact. Meanwhile, protective devices-including gas relays, pressure relief valves, and temperature controllers-monitor temperature, internal pressure, and operating status in real-time; in the event of anomalies such as overloads, short circuits, or internal faults, they trigger alarms or trip the power supply, rapidly averting catastrophic failures like equipment burnout, oil leaks, explosions, or widespread power outages, thus vastly enhancing the safety and reliability of transformer operations.
