Categories : Transformer Maintenance
FLD 0.15D Online Transformer Dry-Out System
The FLD 0.15D system is designed for online drying of transformer insulation (with insulating oil and paper insulation included). The FLD 0.15D online dry-out system is connected to the transformer and remains in operation nearby throughout the drying process. The transformer oil is circulated through three sorbent cartridges in the FLD 0.15D online dry-out system. Due to its high adsorption capacity, the sorbent extracts moisture from the oil, after which the dehydrated oil is returned to the transformer.
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Description
The FLD 0.15D system is designed for online drying of transformer insulation (with insulating oil and paper insulation included).
The system’s principle of operation is based on the fact that in a loaded, operating transformer, moisture migrates between the paper insulation and the insulating oil. Therefore, the FLD 0.15D online dry-out system is connected to the transformer and remains in operation nearby throughout the drying process. The transformer oil is circulated through three sorbent cartridges in the FLD 0.15D online dry-out system. Due to its high adsorption capacity, the sorbent extracts moisture from the oil, after which the dehydrated oil is returned to the transformer.
As a result, prolonged drying reduces the moisture content of both insulating oil and paper insulation in the transformer. If required, the FLD 0.15D online dry-out system can be additionally equipped with a special protective enclosure.
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Specification
No. Parameter Value 1 Capacity, gpm (L/h) 0.15 (35) 2 Water adsorption capacity, gal (liters) 2.4 (9) 3 Adsorbent load per column, lbs (kg) 44 (20) 4 Parameters of processed oil: – max moisture content, ppm < 5 – ISO 4406 grade -/14/12 5 Outlet pressure, psi (bar) 29 (2) 6 Oil supply head, in (m) 790 (20) 7 Max power, kW 0.25 8 Power supply parameters Any options upon customer’s request 9 Dimensions, in (mm) – length 45 (1150) – height 78 (1980) – width 19 (490) 10 Weight, lbs (kg) 880 (400) -
Advantages
The FLD 0.15D online transformer dry-out system offers several advantages. It enables not only transformer oil dehydration, but also drying of the windings paper insulation. Operation in online drying mode eliminates the need to transport the transformer to a repair workshop, resulting in cost savings. The system can be quickly connected to the transformer, normally within an hour. The sorbent used in the cartridges can be reactivated multiple times, allowing it to be reused for transformer drying. Maintenance is convenient, with fast cartridge installation and removal, and no constant operator supervision required. Another important advantage is that the system contributes to extending the service life of transformers.
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Application
The Fluidex online transformer dry-out system can be used for drying and maintenance of various types of transformers, including traction, mine, furnace, marine, wind farm, step-up, power distribution, and other transformers.
The use of the Fluidex online transformer dry-out system is particularly reasonable when the transformer cannot be disconnected and sent to a repair shop for drying the windings paper insulation. The Fluidex system enables this process to be carried out on-site without taking the transformer offline.
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Configurator
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