Publications

Difference Between Oil Regeneration / Oil Reclamation and Oil Recycling

Difference Between Oil Reclamation and Oil  Regeneration

First of all it is necessary to mention that oil, used in different industries is usually a special formulation made to meet the needs of that particular industry.  To gain a better understanding of the...Read more»


Aspects Insulating Liquid Use

Insulating fluids are used in many types of high-voltage electrical equipment, such as transformers, switchgear, capacitors and cables. The insulating liquid has two main functions: dielectric and coolant.

Additional functions of insulating liquid are arc quenching in circuit breakers, protecting the internal insulation from outside air and...Read more»


Complete Transformer Substation: Types and Functions

Substation. Substations are an integral part of modern electric power systems. They are used in every electric grid. Modern substations are complex units for transmission of electricity from high-voltage lines to households.

Complete transformer substations are compact arrangements for receiving, conversion, distribution and metering electricity.

Depending...Read more»


Oxidation Effects On Transformer Oil

Oxidation effects. Transformer oil fills power transformers and other high-voltage devices providing reliable isolation and removing heat from the hot parts of the equipment. In high-voltage circuit breakers the oil also acts as an arc extinguisher.

Generally, insulating oils work at high temperatures (70-80 °C). Temperature and...Read more»


Compressor Oil: Markings

Compressor oil. The marking of compressor oils was developed in the 1980s and has not changed to this day.

There are three major groups of compressor oils:

  • Oils for compressors operating at partially-loaded conditions, and compressing air and gas, insoluble in the oil, at discharge temperature...Read more»

General transformer maintenance: oil test

General transformer maintenance is required for on-line detection and elimination of various defects to avoid failures in emergency situations.

In this article we will talk about transformer oil testing. The tests determine the current state of both the oil and the transformer parts. The results may serve...Read more»


Engler viscometer

Engler viscometer is used for measuring the viscosity of lubricating oils. The first prototype of Engler viscometer is probably the unit constructed by Lomonosov in 1752. It measured the viscosity of liquids by the number of drops. This idea was the basis for the Engler viscometer.

The...Read more»


Base oil groups

Base oil groups. Base oils are oils that were previously purified from unwanted components and contain no additives. Base oils serve as the basis for most commercial oils, and at the same time the market is receiving a growing amount of synthetic and mixed oils.

When selecting a base...Read more»


Correct Processing of Waste Oils

Processing of Waste Oils. Organized collection and recycling of waste oil allows to save  30% of valuable oil.

Vehicle fleet owners use regeneration systems to regenerate waste oils and significantly reduce the amount of harmful emissions into the environment. But these purification and regeneration systems are too...Read more»


Transformer Moisture Removal

Moisture removal from transformer oil is an important part of maintenance of insulating liquid.

This problem is solved by using AC or DC electric fields. In practice, the most common are DC machines. The electric oil dehydration takes place through bipolar coalescence or dielectrophoresis.

In the...Read more»


Is it Possible to Remove Solid Particles by Sedimentation and Centrifugation?

Remove Solid Particles. Solid particles are the most common and the most unwelcome contaminants of mineral oils. They are removed by physical, chemical and physico-chemical methods. In this article we will look at the physical processes, such as sedimentation and centrifugation.

The use of gravity is perhaps...Read more»


Package Transformer Substations (PTS)

Package Transformer Substations. A transformer substation increases or decreases voltage, distributing electric power. Such substations usually include a power transformer, distribution devices, auxiliary structures, control and protection devices. There are step up or step down substations depending on what they do with voltage.

Substations are manufactured by...Read more»


Substation Grounding

Substation Grounding. High voltage is used for long-distance transmission of electrical power. The line going to the consumer is usually under 6 to 10 kilovolts and to reduce the voltage to the usable 0.4 kV substations are required.

Substations are grounded by the external and the internal...Read more»


Modern Substation Engineering

Modern Substation.. Electrical substations is an important link of the modern power transmission grids due both to their function and number. At this time, approximately 40% of substations are nearing the end of their service life and require redesign. Substations design and construction is a common and rapid...Read more»


The Lifetime of a Power Transformer

The Lifetime of a Power Transformer. Annual losses caused by power supply interruptions, reach into millions or even billions of dollars. The issue of power generation, transmission and distribution is of strategic importance.

One of the essential elements of the power grid is the transformer. Knowing the...Read more»


The Oil Pump: Types and Varieties

The purpose of the oil pump is self-explanatory. This is a device to exert pressure on the oil to transport it from one place in the system to another.

In terms of control, there are two types of pumps: one type can adjust pressure in the system...Read more»


Oil Production

Oil can be of various kinds, but the most popular are:

  • diesel oil;
  • industrial oil;
  • transformer oil;
  • compressor oil.

The oils are usually produced by mixing (compounding) of basic distilled oils with each other or with residual components. To improve the product, additives...Read more»


Corrective Maintenance of Oil-Filled Transformers

Corrective maintenance of oil transformer is performed according to mandatory schedule and according to the current condition of the transformer.

Corrective maintenance includes certain measures, such as external inspection and repairs, cleaning of insulators, radiators and the tank, removal of dirt from the expansion tank, adding oil,...Read more»


What affects transformer oil price?

Speaking about such concept as “transformer oil price”, it is necessary to consider all possible criteria and circumstances.

Transformer oil fills power transformers and circuit breakers. It is made from crude oil, so it is quite obvious that the price of oil is influenced by the market...Read more»


Highlights of GlobeCore equipment

GlobeCore is one of the leading manufacturers of oil purification and regeneration equipment, as well as maintenance equipment for power transformers.

This article shows the benefits of GlobeCore equipment which brought the company to the top position in the world market.

What equipment does GlobeCore produce?

Read more»

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ABOUT AUTHOR
Name: Helen Galchenko
Position: Sales Manager
Place of work:GlobeCore GmbH
Education: Institute of Economics and Law
Experience of work: 8 years as sales and purchase manager
Family: married, have 4 year old daughter
Interests:car driving, playing with dogs, travel.

TRANSFORMER OIL REGENERATION SYSTEM

Electric Power Transformers are widely used in the energy sector and normally have a long service life provided they are operated properly and receive timely preventive and corrective maintenance.  Recent research however, shows that the failure rate of transformers has been growing annually for several years. The main problems are related to damaged paper insulation surrounding the windings, voltage regulators, and inputs.  Why you may ask?  Well, most, if not all. damage to the insulating paper can be traced back to problems with the dielectric insulating oil.

The insulating paper is the heart of the transformer and oil is the life blood of the transformer.  Once the oil becomes contaminated with acids, moisture and particulate matter, it will transfer these contaminates into the insulating paper.  The paper will then begin to degrade and lose its insulating properties and that will eventually lead to premature transformer failure.  There is a wise old saying. “An ounce of prevention is worth a pound of cure.”  It is therefore, better to maintain your transformers and prevent failures before they happen.

The service life of your transformers life can be extended considerably using the GlobeCore Service Life Extension Program featuring the GlobeCore Process  and our SMM-R Oil Regeneration units manufactured in our factory.  These systems allow you to restore the dielectric strength of insulating oil and restore the transformer insulting oil back to its original new condition.  The GlobeCore Process makes it possible to extend the life of your transformers to between 20-35 years.  Many industry professionals are convinced that there is no reason to buy new transformers if the GlobeCore Process is used to service your aging transformer fleet since the process can save old transformers and extend service life.  If the process is implemented early in the service life of a transformer, an even greater service life extension can be achieved.

SORBENT DESCRIPTION

A “Unique feature” of the SMM-R regeneration unit is the usage of a sorbent material known as “Fuller’s Earth.”  The Fuller’s Earth sorbent can be regenerated and used over and over again in processing and filtering transformer oil.  The Fuller’s Earth resource will continue to be viable for between 2 and 3 years and it can filter over 90 tons of oil before being safely disposed of without causing environmental harm.  The Fuller’s Earth sorbent is considered environmentally friendly and can be later used as a construction material.  The GlobeCore Process has been able to reach a high level of positive results in processing of transformer oil when using the Fuller’s Earth sorbent materials.  The GlobeCore Process of regeneration using Fuller’s Earth is easy and can be performed by one person directly on the transformer in either energized or de-energized mode.  The process purifies, degases and restores the oil and is capable of removing the contaminates from the core, windings and the insulating paper.  This makes the GlobeCore Process the most advanced and cost effective transformer maintenance system in the world today.

PROCESS OF REGENERATION

Transformer oil is pumped through the sorbent by means of a pump.  Sorbent is kept in several cylindrical columns through which the oil flows as part of the filtering process.  After the oil passes through the sorbent, the oil is then filtered by means of a second filter for fine filtration.  The oil moves in the vessel for the process of oil collection.  The sorbent material has a micro pore structure allowing for molecular filtration.  During the process of filtration, harmful impurities and products of oil decomposition are left in the granules of the sorbent.  Once the sorbent reaches the point of saturation with impurities, the unit starts the sorbent reactivation process automatically.  During the course of sorbent reactivation, the micropores of the sorbent are cleaned and harmful impurities are removed and placed into a special collector and coal filter.  The Fuller’s Earth Sorbent is capable of completing approximately 300 regeneration cycles before it must be replaced.

 

обновлено: June 24, 2016 автором: globecore