Rental fleet and new machines in stock at our service center in Dickinson, TX.
How we operate:
Regular Reclamation Of Oil Every 10 Years DOUBLES Transformer's Service Life
The service life of most transformers however, can be extended if timely preventive maintenance procedures and programs are implemented. Ideally, a sound preventive maintenance program should be implemented early in the transformer life cycle, but even older transformers can benefit and experience an extended service life with the GlobeCore Process and the GlobeCore Service Life Extension Program.
Regeneration of transformer oil, using the GlobeCore Process can extend average transformer service life by 25 to 30 years.
As a transformer’s insulting oil ages, it oxidizes and begins to break down giving rise to by-products that produce sludge, acids, and other undesirable contaminates that attack the chemical bonds that hold the cellulose insulation together. In other words, the insulating oil becomes aggressive towards the insulating paper and begins the extremely detrimental paper degradation process that can ultimately end in a catastrophic transformer failure.
THE SOLUTION: Transformer Oil Reclamation
The main principle of Oil Regeneration is to cleanse and purify the insulating oil by pumping the oil through a sorbent material such as Fuller’s Earth. During this process, the oil undergoes “molecular filtration” in the micro porous adsorbent material. The By-Products of oil aging (burnt deposits, hydro-peroxides, ketones, carboxylic acids, aldehydes, phenols, etc.) are removed and stay in the Fuller’s Earth granules. Fuller’s Earth is a naturally occurring clay that poses no environmental danger and can be disposed of as a construction waste after its absorbing properties have been exhausted. GlobeCore regeneration units utilize the GlobeCore Process and are designed to operate with multiple sorbent filter columns. The columns can be either in oil filtration mode or adsorbent reactivation mode. As oil processing proceeds, the regeneration unit will switch between oil regeneration and sorbent reactivation. The switch takes place automatically when the absorbent has accumulated a certain amount of contaminants. This feature is managed by the Supervisory Control and Data Acquisition System (SCADA) and allows the regeneration of oil to proceed continuously without stopping to replace and dispose of spent sorbent material.
Summary of Typical Oil Parameters before and after Regeneration using the GlobeCore CMM-R Transformer Oil Regeneration Unit
Reactivation of the sorbent is fully automated and enables the GlobeCore Regeneration Unit to process oil using the same Fuller’s Earth up to 300 regeneration cycles. This gives the regeneration unit the ability to regenerate transformer oil for between 2 and 3 years before sorbent replacement is required. At the final stage of of the oil regeneration process an inhibitor additive can be injected into the processed oil. The optimal volume of the inhibitor injected in the oil is between 0.3 and 0.4% of total volume. The "Inhibitor Additive" is dissolved in a small portion of regenerated oil and pumped into the main flow from an inhibitor block that is part of the regeneration unit.
GlobeCore Oil Regeneration units treat any mineral oil and restores that oil to the same or better condition then when the oil was new and unused. Oil Regeneration using the GlobeCore Process provides a better and lower cost alternative to oil replacement as treated oil parameters in most cases surpass those offered by new oil as can be seen in the table below.
|Parameter||Test Methods||Standard Value BS 148:2009||Before regeneration||After regeneration|
|Appearance||Visual||Clear, free from sediments and suspended matter||Cloudy brown||Clear and transparent|
|Acid number, mg КОН/g||IEC 296;
|Corrosive sulphur||ISO 5662; ASTM D-1275||Non Corrosive||Present||None|
|Moisture content, ppm||
|Breakdown voltage, kV||
|Dielectric loss tangent at 194ºF||
|Gas content, %||IEC 60599; ASTM D-3612||-||12||0.1|
|Surface tension, mН/m, at 77ºF||ISO 6295; ASTM D-2285||-||22||45|
|Mechanical contaminants size, micron||Clear, free from sediments and suspended matter||50||0.2|
|Oxidation stability: mg КОН/g||IEC 1125А; IEC 1125B; IP-307||≤ 1.2||-||0.2|
Oil Purification Systems Capacity up to 65 gpm:
GlobeCore offers mobile industrial oil purification systems for mineral oils from 0.7 gpm to 65 gpm.
Benefits of Oil purification on ENERGIZED transformers: Servicing oil while energized allows for greater de-sludging of insulation. Our mobile oil purifier is connected to the transformer via TSS (transformer safety system) which measures minimum and maximum levels of dielectric oil and allows the transformer to keep operating during oil service.
See how easy is to connect our Vacuum Dehydrator Oil Purification Systems (Oil Purifier) to an electricity substation:
One of the most frequently encountered contaminants in oil is water. Water is detrimental to the life and performance of dielectric oil. GlobeCore manufactures a complete line of Oil Purification Systems & Filtration Equipment that removes water contamination as well as other types of contamination, i.e. particulates and gases.
- Vaporizes water from oil under vacuum.
- Dehydrates, filters, purifies and de-aerates oils.
- Self-policing system.
- Numerous sizes and options are available.
By maintaining absolute fluid cleanliness, end-users can dramatically increase the life of power transformers, minimizing downtime and maximizing profitability.
- Packaged, compact machines for liquid filtration.
- Completely self-contained and wired ready for field service.
- Easy handling and portable.
- Accommodates a large range of specific applications.
Cart models are ideally suited for servicing small volume transformers, marine applications, and to dedicate to silicon oil. All processes required for servicing electricity substations can be performed including gas removal, temporary oil storage, contaminant filtration to 0.1 micron, gas purification and drying, equipment evacuation and equipment re-pressurization. The cart models are also ideally suited for consolidating partially-used SF6 bottles into one bottle.
Some of our clients are:
Mr. Shekanabo, the United Republic of Tanzania:
«I can only say good things about GlobeCore mills. After seeing the production facility, I had no doubts that this is a serious and reliable company with professional staff, and the system works like a clock. Of course, the production itself seems complicated, but the equipment is powerful and rugged.»
HARRISON A. McCOY, III, Hawaiian Islands:
«We have been observing operation of GlobeCore for many years: these guys really do make outstanding equipment for transformer oil regeneration in the field. Transformer’s can be services without the need to shut them down. 1 micron filtration and drying to 2 ppm are really impressive.»
Mr. Patel, the United Republic of Tanzania
«I want to wish GlobeCore success in the future and I think we will maintain our cooperation for many more years. May you have as many successful products and new developments as possible.»
GlobeСore rental fleet located in Dickinson, TX:
Want to know pricing? Fill out contact below and we’ll get back to you
1750-H Dickinson Ave (FM 1266)
Dickinson, TX, 77539
Technical Sales Lead:
James Randall Slaybaugh, F.E.