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GlobeCorePublications manufactures and supplies equipment for purification of transformer, industrial, turbine and other types of oils. GlobeCore oil recycling plants are convenient, practical and functional. Their operation is not accompanied by harmful emissions into atmosphere. In addition, they consume minimal power, helping to save on expenses.Oil filtration unit.

GlobeCore GmbH is one of the world leaders in industrial manufacturing. Products of GlobeCore are used in production of bitumen emulsions, transformer oil regeneration and purification, fuel blending, biodiesel production and emulsification of virtually any materials.

The head office is located in Oldenburg, Germany. Our systems have been supplied to and are successfully operated in 70 countries. A network of 17 dealers supports global sales and services.

July 31, 2017

Three-Phase Transformer

Transformers and Three-Phase Transformer

Generator step-up (GSU) transformers represent the second largest capital investment in Reclamation power production—second only to generators. Reclamation has hundreds, perhaps thousands, of transformers, in addition to hundreds of large GSU transformers. Reclamation has transformers as small as a camera battery charger, about one-half the size of a coffee cup, to huge generator step-up transformers near the size of a small house. The total investment in transformers...


July 31, 2017

Oil immersed transformer composition and design features

Power transformers are the most important components of an electrical grid. The transformers differ by their cooling systems. Hence there are dry-type transformers and oil immersed transformers

Most of the transformers in service are oil immersed. Their tank with active part is filled with oil. The oil removes heat from hot parts and increases dielectric strength of insulation. Transformers with an air cooling system are called dry-type transformers. Usually they have...


July 31, 2017

Oil Restoration in the energy industry

Industrial oils are widely used in the energy industry. They provide heat dissipation and insulation in power transformers, lubrication of bearings and gearboxes, heat dissipation in turbines of power plants. In-service oils get contaminated and oxidized and require restoration.

What is oil restoration?

Oil restoration rejuvenates the original properties and parameters of oil that undergone a change during operation. The changes depend on the type of oil and its purpose. They are...


July 26, 2017

Oil Treatment for hydraulic systems

Oil Treatment

Hydraulic equipment, its maintenance or repair is not cheap. Therefore, it is advisable to use preventive measures, and regular cleaning of hydraulic oil.

Where do your money go?

The main costs of hydraulic system operation are related to the following articles:

oil change; parts replacement; equipment repair.

In the first case, it is necessary to purchase fresh and utilize used oil. The second case of expenditure is usually a purchase and replacement of stationary filters,...


July 26, 2017

How Oil Recovery is carried out

Oil Recovery

To date, oil recovery occupies an important place in the environmental policy of every country. Petroleum products contaminated with various impurities (metal particles, water, dirt, oxidation products, etc.) significantly deteriorate and must be collected and recovered.

Oil recovery is re-use of oil, both for its original purpose and for other purposes. Below is the analysis of the most common ways of used oil recovery.

Ways of oil recovery

One of the most...


Maintenance of air transformers

Transformer Oil - Basic Characteristics and Purification Methods

Transformer oil

Transformer oil is widely used as coolant, insulator and suppressor of the arc in electrical devices. The composition of transformer oil includes naphthenes, paraffins and aromatic hydrocarbons. The mass fraction of other components, as a rule, does not exceed 4-5% (for a fresh product).

Transformer oil operating performance

Performance of transformer oil is evaluated by the following parameters:

dielectric loss tangent. The sufficient dielectric strength of oil is ensurred through removal of...

July 25, 2017

Oil Purifier from GlobeCore

An oil purifier is a device designed to remove harmful impurities (solid particles, water and gases) from oil.

Oil purifier: what was it like before?

At first large sedimentation tanks were used as oil purifiers. They stored contaminated oil for a period of time. Large impurities in oil under the influence of gravity gradually settled on the bottom of sedimentation tank. The top layer of oil was collected into another container. This...


July 25, 2017

Oil Recycling technologies

Oil Recycling technologies and ways of realization

Oil recycling is an important direction in handling mankind’s industrial waste. To make the existing ecological situation better, it is vitally important to organize a proper waste oil collection and delivery to specialized enterprises engaged in oil recycling.

What about waste oil?

Waste oil is mineral or synthetic oil that was in operation and is severely contaminated. Waste oils that can be managed are:

gear oils; engine oils; brake...

July 24, 2017

Oil Processing

Oil Processing methods and equipment

Oil processing is the best way to save money on purchasing new oil. Experience indicates that regular oil processing prolongs the life of oil and oil-filled equipment. Below we examine the basic ways of oil processing and oil treating equipment.

Oil processing by centrifugation

Historically, the first methods of oil processing were based on physical phenomena. One of the methods of processing liquids from suspended particles and water...


July 14, 2017

Oil reclamation

How to reclaim waste oil?

At this stage of technological progress, there is an urgent need for proper waste handling. Oil product waste, including used oils, is no exception.

Unfortunately, many countries still do not process industrial oils. Often waste oil is simply poured into reservoirs or soil, and at best – burned to obtain heat. Although, modern equipment reclaims oil, and also restores oil characteristics to the standard requirements. After treatment...


July 4, 2017

Transformer maintenance

Normal operation of electrical devices depends on regular maintenance. Transformer maintenance is a prerequisite for its reliable operation.

How often is it necessary to perform transformer maintenance? It is not easy to give a clear answer to this question, since it depends on the technical condition of the equipment and not two units are the same. The standards set a maximum interval of four years.

Stages of transformer maintenance

Transformer maintenance usually begins...


July 4, 2017

Oil maintenance of power transformers and hydraulic systems

Power transformers are at the base of the modern electric power industry. Their reliability influences a power supply to large industrial facilities and ordinary consumers. In this article, we will learn about transformer oil, which is an important part of transformer insulation system, and oil maintenance.

Let’s start with oil functions. Oil in transformer isolates active parts and removes heat, which is in excess in transformer during operation at elevated temperatures....


August 30, 2016

GlobeCore secrets: how to prolong service life of equipment up to 20 years and more

One of the most frequent questions asked to our company is equipment reliability. Customers are interested not only in unit price but also in warranty period, service life and time to failure. Today we will tell you how we assure quality parameters which guarantee time-proof and faultless operation of GlobeCore products.

Before painting, metal surfaces are sandblasted – this helps to prolong service life of surfaces...


What are the differences between power transformer and instrument transformer?

Power transformers operate at only one frequency and have more power output. Other than that the principles are the same.

Instrument transformers are used primarily where you are sampling a quantity such as voltage and you do not expect to have any load to speak of on the transformer. Some examples are:

Voltage measurement of a substation bus where the nominal voltage is 7200 volts to ground and the current levels may...


Basics of electricity grid: HOW electricity is supplied for household purpose from Substation through busbars, feeders.etc.

Three winding transformer basics

Electrical power is delivered to a substation via 3-phase transmission lines (electricity grid), usually at 115 kV or higher, to the primary, or high voltage coils of power transformers, of which there is generally at least two for redundancy. High voltage switches between the power transmission lines and transformers allow the substation to be isolated from the transmission line. The secondary side of the transformer is usually...


Equipment Quality Control

Equipment Quality Control: Vibration Test of GlobeCore Equipment

Equipment Quality Control

GlobeCore is one of the  world’s leading manufacturers and suppliers of equipment for the purification and regeneration of mineral oils, production of bitumen emulsions and polymer modified bitumen.  All customers wants to buy high quality and defect free equipment.  When making equipment buying decisions, it should be taken into consideration that equipment will be exposed and subjected to vibration during operation and transportation.

GlobeCore always takes care to ensure...


Laboratory oil filtration: motor, transformer, essential oil filtration. Small unit.

Laboratory unit for Vacuum transformer & essential oil filtration GlobeCore UVRL is designed for filtration and lightening of electrical insulation, turbine, industrial mineral oils. https://globecore.com
The viscosity of the filtered product at 50 С must not exceed 70 cSt, maximum moisture content no more than 200 g/ton.
Industrial oil can be filtered after removal of fuel, water, oxyacids, polycarbons and asphaltenes.

Oil...

July 30, 2015

Insulating oil lInfluences of Corrosive Sulfur on Copper Wires and Oil-Paper Insulation in Transformers

Insulating oil

Jian Li, Zhiman He, Lianwei Bao and Lijun Yang

State Key Laboratory of Power Transmission Equipment& System Security and New Technology,

College of Electrical Engineering, Chongqing University

Abstract: Oil-impregnated paper is widely used in power transmission equipment as a reliable insulation. However, copper sulphide deposition on oil-paper insulation can lead to insulation failures in power transformers. This paper presents the influences of copper sulfur corrosion and copper sulphide deposition on copper...


July 2, 2015

2.10 Autotransformers

Autotransformers

It is possible to obtain transformer action by means of a single coil, provided that there is a “tap connection” somewhere along the winding. Transformers having only one winding are called autotransformers, shown schematically in figure 9.

An autotransformer has the usual magnetic core but only one winding, which is common to both the primary and secondary circuits. The primary is always the portion of the winding connected to the AC...


July 1, 2015

2.11 Instrument Transformers

Instrument transformers (figure 10) are used for measuring and control purposes. They provide currents and voltages proportional to the primary, but there is less danger to instruments and personnel.

Figure 10 – Connections of Instrument Transformers

Those transformers used to step voltage down are known as potential transformers (PTs) and those used to step current down are known as current transformers (CTs).

The function of...


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обновлено: July 26, 2017 автором: dannik