TRANSFORMERS’ AGING FACTORSFirst things first, analyzing the special literature on the operation of oil-filled electrical equipment, you can see that most often among the possible factors are mentioned:
OIL IMPURITYAs you know, a new, “fresh” oil, designed for use in various types of engines and systems, is no less dangerous and contains many harmful substances: the possibility of moisture, gases or accidental impurities getting in during transportation or storage.
OIL PURIFICATIONTherefore, before adding oil to the transformer, it must be cleaned. New oil does not require regeneration and restoration of its properties. Filters are used to remove harmful foreign particles from the oil. Studies show that the use of fine filters is more efficient. During filtration, oil-insoluble particles whose sizes exceed the dimensions of the filter element, regardless of the density of these particles, are retained. In the sediments on the fine filters remain the majority of excess organic substances. For oil filtration, surface-adsorption type filters with a fineness of up to 5 microns are most often used, however, there are fine filters that trap even smaller particles. The main feature of these filters (in comparison with slotted and volume-adsorbing) is a large filtering surface. The fine filter is used for the final cleaning of fuel from small impurities and water. It is installed between the fuel pump and the carburetor. Fuel under pressure from the fuel pump through the fuel line is led into the filter housing and lowered into the settling cup, where water and other impurities are separated from it. Then it passes through the pores of the filter element, is finally cleaned and discharged into the float chamber through the fuel exhaust pipe.
HOW TO CHOOSE OIL FILTRATION SYSTEM?Various external factors influence the choice of a product: customer’s desire, seller’s mood, weather and atmospheric pressure, air in the store, etc. But the choice of industrial equipment, although very often depends on the same reasons and circumstances, still has a number of physical parameters, on the basis of which the opinion of the future owner is formed. Various types of plants are designed to clean mechanical impurities of various oil-based working fluids – industrial, energy oils and fuels – they operate on the basis of filtration methods. A large number of manufacturing companies specialize in the production of a wide range of products and services, releasing in large volumes the installations for filtering transformer, lubricating, hydraulic and turbine oils, integrated systems for the regeneration of working fluids and other equipment of this kind. The purchase of waste oil filtration equipment is positioned as saving money and resources, reducing problems with accidents and downtime, as well as environmentally friendly waste disposal. At the same time, the service life of industrial equipment is increased, and the company is included in the newfangled trends of the modern international market.
SPECIFICATIONSIt is worth paying attention to some technical characteristics that oil filtration plants must comply with. Among them are the following:
- Physical size of oil filters. This key component of the purification system should be relatively small in order to provide an advantageous design of the plant and its possible mobility.
- Filter test results. Oil filters can be tested in various ways, but one of the most common methods is to test the beta coefficient, which is calculated by recording the division of the number of larger particles in front of the filter by the number of particles of the same size downstream of the filter. For example, if the beta coefficient is 10, this means that out of 10 particles that enter the filter, it passes only
- Pore size.
- Performance and consumption, etc.
OIL FILTRATION EQUIPMENTTransformer oil filtration systems are designed for small volume transformers in which the level of pollution by harmful particles and gases is quite low. GlobeCore’s oil filtration plants use single or multi-stage filtration to remove solids and water. In addition, like most oil stations, GlobeCore oil filtration systems are mobile and mounted in special containers and can be installed on a special semi-trailer. Installations of the CMM type are available in a large assortment, specially selected for various operating conditions, the size of the enterprise and equipment. Relative ease of use, monitoring and control systems, system programming, as well as the implementation of an individual order – this is a list of the minimum set of related services to GlobeCore oil filtration systems. GlobeCore’s oil filtration system uses several types of filters, both coarse and fine. Including many types of sorbents are used as a filter. The photograph shows a set of polypropylene filters. They come with a filter fineness of 5 μm and / or 1 μm. You can see more information in detail on the spare parts page or you can immediately call the manager for an order. A set of filters with a filter fineness of 5 μm and / or 1 μm. Polypropylene filter elements. Nominal efficiency = 99.9% Maximum pressure drop at 500С – 2.5 bar Maximum output per cartridge 7000 l / h. Geometrical sizes: outer diameter (D) – 150 mm; inner diameter (d) – 54 mm; height (N) – 363 mm Note: The number of filter elements is negotiated separately