Double-stage transformer oil purifiers are advanced systems designed to remove moisture, gases, and contaminants from insulating oil. Understanding the key components of these systems helps operators ensure optimal performance and proper maintenance.
Vacuum Chamber System
The vacuum chamber is the core of a double-stage oil purifier. It creates a high-vacuum environment that allows moisture and dissolved gases to evaporate at low temperatures. In double-stage systems, enhanced vacuum levels improve dehydration efficiency, making them suitable for ultra-low moisture requirements in high-voltage transformers.
Heating System
The heating system raises the oil temperature to an optimal level before it enters the vacuum chamber. Controlled heating reduces oil viscosity, allowing moisture to separate more easily. Advanced double-stage purifiers use precise temperature control to prevent oil oxidation while maximizing dehydration performance.
Filtration Unit
The filtration unit removes solid contaminants such as carbon particles, sludge, and metal debris. High-precision filters are typically arranged in multiple stages to capture particles of varying sizes. Effective filtration not only improves oil cleanliness but also protects downstream components from wear and blockage.
Vacuum Pump Assembly
The vacuum pump assembly is responsible for generating and maintaining the required vacuum level. In double-stage systems, this often includes a combination of rotary vane and roots vacuum pumps. This configuration ensures faster evacuation, deeper vacuum levels, and improved removal of dissolved gases and moisture.
Control and Monitoring System
Modern double-stage transformer oil purifiers are equipped with automated control systems. These systems monitor temperature, vacuum pressure, flow rate, and operating status in real time. Advanced controls improve safety, reduce operator error, and ensure consistent purification results during continuous operation
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