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QLD- Business Detail |
TRANSFORMERS |
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Business
name:  |
FLOSEP DUST FILTRATION AUSTRALASIA |
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| Phone: | (07) 5547 7773 | |||
| Fax: | (07) 5548 6384 | |||
| Toll free: | ||||
Address: |
89-97 Nash Rd Jimboomba, QLD, 4280 |
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| Email: | qas1@bigpond.net.au | |||
| URL: | http://www.flosepdustfiltration.com | |||
| Description: | About DryKeep ® Moisture Management System for Power Transformers. Power transformers are one of the most important and expensive assets in a power network. In general, they are very reliable and require little maintenance The insulation materials of most power transformers degrade with time in service, and ultimately determine the end of life of the transformer. They consists of organic materials…Mineral oil, cellulose paper, and pressboard. Moisture in the insulation system, along with operating temperature and oxygen in the transformer oil, constitutes the most important transformer insulation aging mechanism. Maintaining transformer insulation in a properly "dried-out" state to reduce the aging phenomenon and the risk of failure can be a difficult and costly process, requiring capital-intensive equipment and significant transformer outages. Revolutionary Technology: DryKeep is an on-line molecular sieve insulation dry-out system that will continuously remove water from the oil and paper insulation in power transformers. The process not only reduces aging but will improve the dielectric strength of the paper insulation. It was developed by the Power Distribution Services (PDS) business unit of Rotek Engineering, in collaboration with the Nuclear Energy Corporation of South Africa (NECSA). DryKeep is an on-line molecular sieve, stationary, continuous water removal system. It is capable of reducing water levels from 50 ppm to less than 10 ppm in transformer oils. The continuous on-line removal of water from the transformer oil also ensures the removal of the moisture and fibers in the solid insulation. The diffusion of the moisture from the solid insulation to the oil maintains the associated equilibrium as water is removed from the oil. This process not only reduces the paper aging, but will improve the dielectric strength of the insulation and increase reliability. It enables transformers to be run on higher load cycles with greatly reduced risk of failure. The increased plant utilization will allow capital expenditure to be deferred. In free breathing transformers water can not only enter the insulation material through the natural expansion and contraction of oil as the temperature cycles, but water is a by-product of the degradation of the long chain hydrocarbon glucose molecule as the result of thermal and electrical stress. Excessive moisture will saturate the insulation and increase its conductivity. Higher temperatures increase the risk of bubble evolution and partial discharge. It should be noted that the deterioration of paper is directly proportional to its water content. The system was originally intended to be installed on a properly dried out transformer to maintain this ideal state throughout its service life. But, due to the effective drying capabilities, the DryKeep system was soon installed on older wet transformers. It was found to be an effective moisture management tool. DryKeep can benefit power transformers in various ways: New Transformers-A DryKeep installed on a new or recently reconditioned transformer will maintain the moisture content at the 0.5% factory level as it removes small quantities of water. It may more than double the design life of this expensive asset for a fraction of the cost of a new transformer. Older In-service Transformers-DryKeep will extend the service life of the transformer by many years by slowly reducing the water content of the paper and maintaining it at a predetermined level. If re-clamping the windings is possible to perform on site, reduce the moisture content to the factory level of 0.5%. If re-clamping is not possible, we recommend not drying out below 1.3%.DryKeep will predetermine the amount of moisture in the paper before installation and estimate the number of cylinder changes required. The amount of time required to dry out the unit will vary with the size, moisture content and operational temperature variation. The time period is typically between 10 and 24 months. Out of Service Transformers-Off-line transformers should be kept free from moisture formed through condensation during normal ambient temperature cycles. When the transformer is returned to service, the oil must be dry and capable of handling the electrical stresses of loading. DryKeep is an obvious solution. The DryKeep ® Cartridges. RE-CHARGEABLE CARTRIDGES – ECONOMICAL & EASY TO APPLY. Technology The system uses three completely passive cartridges. Each cartridge utilizes advanced molecular sieve technology to continuously remove moisture from the oil and paper insulation from on-line power transformers. The ceramic beads are unique in structure and will adsorb water to the exclusion of anything else. The system will not affect the trending of dissolved gasses. As oil flows from the transformer tank, over the sieve, water is gradually extracted, but in turn is replaced by the water from the winding insulation to maintain a state of equilibrium. The DryKeep sponge technique is unique because the moisture in a saturated cylinder can never be returned to the oil under normal temperatures. Because the process is continuous, the water in the windings is gradually reduced, along with the associated risk of breakdown of the paper insulation at the critical paper/oil interface. Each DryKeep cartridge is capable of removing a minimum of 3 liters of dissolved water from the oil or 9 liters total. The regeneration process has shown that each cylinder can remove up to 4 liters. A cartridge installed in a dry transformer will last about 5 to 6 years before saturation. The cartridge can be removed, replaced, and regenerated for re-use (at a significantly reduced price). Drying Time The time required to dry-out the paper is dependent on many factors, size of transformer, temperature and temperature change being the main. Typically it is between 10 and 24 months. Oil Circulation Through the DryKeep System. If a transformer operates with natural oil circulation, the small electric pump (90 liters/ 24 gallons per hour), will circulate the transformer oil through the cartridges. The flow rate can be controlled with the outlet valve of the system. Installation & Maintenance. A stationery & maintenance free system The DryKeep system requires little maintenance other than periodic visual inspection for leaks. If applicable, the small oil pump requires occasional operational inspection and the filter cartridge may have to be replaced periodically. | |||
| Brands: | DryKeep, Flosep. | |||
| Operation Hours: | Mon-Fro: 8.00am - 5.00pm | |||
| Payment Info: | DirectDeposit | |||
| Business Specialty: | TRANSFORMERS | |||
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