The zero-sequence impedance test of a transformer is an essential diagnostic method used in the power industry to assess the behavior of transformers under unbalanced fault conditions, such as a ground fault. By determining zero-sequence impedance, engineers can ensure the reliable and safe operation of power systems, especially in networks that depend on transformers forRead More
Transformadores são componentes fundamentais no sistema elétrico, atuando como elos cruciais na transmissão e distribuição de energia. A qualidade, estabilidade e segurança do fornecimento elétrico dependem, em grande parte, do perfeito funcionamento desses equipamentos. No entanto, os transformadores estão sujeitos a uma série de fatores adversos ao longo de sua vida útil: sobrecargas, descargas parciais,Read More
In the electrical power industry, transformers are indispensable assets responsible for the transmission and distribution of electricity. Ensuring their optimal performance and longevity is crucial for uninterrupted power supply and operational efficiency. Transformer diagnostic equipment plays a vital role in monitoring the health of transformers, detecting potential issues before they escalate into serious problems. GlobeCore,Read More
In the realm of electrical power distribution, the reliability and efficiency of transformers are paramount. A critical factor affecting transformer performance is the moisture content in the insulating oil. Excessive moisture can lead to reduced dielectric strength, accelerated aging of insulation, and even catastrophic failures. GlobeCore’s Oil Moisture Sensor TOR-1 provides a precise and reliableRead More
Imagine the heartbeat of a city’s power grid—the transformer. Hidden away in substations, these silent giants work tirelessly to ensure electricity flows smoothly to homes, businesses, and critical infrastructure. But like any hardworking machine, transformers need care to keep performing at their best. Enter Transformer Oil Diagnostic, a crucial process that keeps the pulse ofRead More
In the electrical power industry, transformers play a critical role in the transmission and distribution of electricity. A key factor in maintaining transformer reliability and efficiency is the dielectric strength of transformer oil. This property determines the oil’s ability to insulate and cool the transformer under high electrical stress. GlobeCore, a leading manufacturer of industrialRead More
In the high-stakes world of electrical power distribution, the reliability of transformers is non-negotiable. A critical component in ensuring this reliability is the DGA tester—a device used for Dissolved Gas Analysis (DGA). GlobeCore, a leader in industrial testing equipment, offers advanced DGA testers designed to enhance transformer maintenance and prevent costly failures. Understanding the DGARead More
In the electrical power industry, the reliability and safety of transformers are paramount. One critical aspect of transformer maintenance is assessing the insulating properties of transformer oil through BDV testing (Breakdown Voltage Testing). GlobeCore, a leading manufacturer of industrial equipment, offers the TOR-60 unit—an advanced solution designed to accurately measure the dielectric strength of transformerRead More
In the electrical power industry, transformers are critical assets that require meticulous monitoring to ensure reliable operation. One of the most effective methods for assessing transformer health is through dissolved gas analysis (DGA). GlobeCore, a leader in industrial equipment manufacturing, offers the TOR-2 dissolved gas analyzer—an advanced solution for accurate and efficient transformer oil testing.Read More
In the electrical power industry, the performance and reliability of transformers are of utmost importance. One critical method for assessing transformer health is the tan delta test. This test evaluates the insulating properties of transformer oil, providing insights into potential degradation or contamination. GlobeCore, a leading manufacturer of industrial equipment, offers advanced solutions for transformerRead More
In the electrical power industry, the reliability and longevity of transformers are crucial for uninterrupted power supply. Transformer oil testing is a fundamental practice that assesses the health of transformer oil, which acts as both an insulator and a coolant. GlobeCore, a renowned manufacturer of industrial equipment, offers a comprehensive range of products designed toRead More
In the realm of electrical power distribution, the reliability of transformers is paramount. Oil analysis plays a critical role in monitoring transformer health, predicting failures, and extending equipment life. GlobeCore, a leader in industrial equipment manufacturing, offers a suite of innovative products designed to optimize oil analysis processes. Importance of Oil Analysis Transformer oil servesRead More
GlobeCore’s representative in Canada, Stratatek, participated in the Canadian Utility Energy Expo, held on October 8-9 at the Enercare exhibition center on Toronto’s waterfront. Over 150 exhibitors showcased their innovations, ranging from electrification and equipment to consulting and artificial intelligence, offering visitors excellent opportunities to discover new solutions and services across more than 45 productRead More
Dissolved Gas Analysis Test (DGA) is a commonly employed method for evaluating the health of transformer oil. This approach detects and measures the amount of dissolved gases in the oil to assess the transformer’s overall condition. The existence of certain gases reflects the degree of wear and indicates possible problems within the transformer. This articleRead More
Power transformer monitoring is a crucial practice aimed at guaranteeing their dependable and effective functioning. Power transformers serve as essential elements within the electrical power network, tasked with conveying and dispersing electrical power from generation facilities to end-users. A malfunction or breakdown in a power transformer may lead to electricity disruptions, system inactivity, and considerableRead More
The dielectric breakdown voltage The measurement of the breakdown voltage of dielectric of transformers oil is becoming increasingly important in the monitoring systems of our equipment immersed in this fluid. Although the measurement of the breakdown voltage alone cannot identify the element generating a drop in the insulation capacity of the oil, it can indicateRead More
DIELECTRIC STRENGTH OF TRANSFORMER OIL CMM IN ELKIMA TRANSFORMER WAS SUCCESSFULLY TESTED The Dielectric Strength of transformer oil is very important since it is essential in maintaining the reliable operation of power transformers. The dielectric strength of transformer oil is mainly determined by the presence of acids, water, and other contaminates. It is therefore, important to keepRead More
Transformer oil is used in high-voltage equipment as an insulating medium due to its higher dielectric strength compared to gases, for example. However, while in use, oils may experience a breakdown which means losing the ability to withstand high voltages. A breakdown poses a risk of failure to expensive electrical equipment: transformers, oil-filled cables, capacitors,Read More
The efficiency factor of a transformer never reaches 100%; in principle, just like with any other device. This is due to the fact that there occur power losses of transformers during operation. These losses take place in the copper conductors of the winding and in the magnetic core (magnetic circuit) made of steel. In thisRead More
Dielectric breakdown measurement is performed in order to assess how well the oil is ready to insulate the live parts of a transformer. Instruments for measuring this parameter should be available in every electrical laboratory. In this article, we will discuss brief theoretical information about transformer oil breakdown voltage and how this voltage is determined.Read More
An oil moisture meter is an instrument that is used to determine the amount of water in industrial oils: transformer, lubricating, turbine, transmission, and other oils. In this article, we are going to discuss the most important matters related to oil wetness: how water gets into oil; in what forms water can be contained inRead More
On September 22–23, 2021, COILTECH 2021, a specialized international exhibition, was held in Pordenone (Italy). COILTECH is the largest event in the field of materials, machinery, and equipment for production and maintenance of electric motors, generators, transformers, and electromagnetic coils. This year, the exhibition was attended by DASOTEC S.r.l., an exclusive dealer of GlobeCore inRead More
In this article, we will discuss special aspects of transformer diagnostic evaluation and focus on online transformer monitoring systems. The presence of such systems makes transformer servicing easier, more convenient, and cost-effective. Approaches to classification of transformer status monitoring methods There exist various approaches to classification of transformer status monitoring methods which are determined byRead More
Oil is used in a transformer to insulate live parts and to remove heat. These are two main functions, but there is also a third function: insulating oils are a good information environment by means of which it is possible to diagnose the development of various defects. This is due to the fact that gasesRead More
Power transformers are an important link in electrical power supply systems. They allow connecting the grid sections of different voltages and reducing the electricity losses during electricity transmission over great distances. A sudden failure of even one transformer causes the entire neighborhoods to remain without electricity. For this to happen as seldom as possible, maintenanceRead More
In April 2021, GlobeCore service representative Jose Mora visited Ecuador where he held another launch of equipment. GlobeCore provides comprehensive power transformer maintenance solutions. Therefore, this time, our partner purchased several items of equipment at once: TOR-80 instrument; СММ-4/7 unit; TSS (Transformer Security System). TOR-80 is a compact and convenient instrument for measuring the breakdownRead More
On March 26, 2021, a seminar was held on Analysis of Dielectric Oils in Hermosillo (Mexico). The seminar was organized by Dymelec SA de CV. Fifty participants attended it, including the representatives from CFE, the largest power transmission company of Mexico, and GlobeCore represented by Jose Mora. The following matters were discussed during the seminar:Read More
Transformer oil dielectric loss testing equipment is used both at the stage of checking the quality of oil before feeding it into the transformer and during the use of oil. In this article, we will discuss what is meant by the dielectric loss tangent, what parameters it depends on, what algorithm is applied to determineRead More
In this article, we will discuss one of the main methods for diagnostic evaluation of transformers — dissolved gas analysis of transformer oil. Hereinafter, we will tell you when it is advisable to use this method, what main techniques there exist to interpret the results thereof, and also speak about a new instrument in GlobeCoreRead More
The dielectric strength of transformer oil is one of the main parameters the value of which can be used to judge the quality and the current status of liquid transformer insulation. Physically, dielectric strength is the minimum electric field intensity at which electrical breakdown of a liquid dielectric occurs. Typically, the unit used to measureRead More
In this article, we will discuss what is meant by the dielectric strength of transformer oil, how dielectric strength measurement is taken, and what instruments are used for this purpose. Along with the dielectric loss tangent, dielectric strength is the main characteristic to describe the dielectric properties of insulating oil. Therefore, an interest in exploringRead More
On March 30–31, another webinar will be held under the title “BDV Testing Online. Methods of Measurement and Improvement” as part of GlobeCore Tech School program. During the webinar, the following matters will be considered: standards for determining the breakdown voltage; how an oil breakdown occurs in the transformer; how to take samples correctly; whatRead More
It is important not only to purify or regenerate transformer oil, but also to do it on time, so that it could be used as long as possible. For this purpose, the periodic monitoring is carried out of important oil parameters: breakdown voltage, moisture content, dielectric loss tangent, acid number, etc. The results obtained makeRead More
Transformer oil tester is a device that measures one or more parameters of an oil in order to determine its current state. The market for such equipment is large, so in this article we will focus only on the basic parameters and solutions that GlobeCore offers to determine them. Also note that some types ofRead More
The Transformador LarAm 360 symposium was held in Panama, focused on transformer servicing and lifetime extension. The discussions during the event touched on the important topics of transformer lifecycle. Each topic was presented by an expert in the specific field, which included representatives from SDMyers, Megger, Maschinenfabrik Reinhausen, GlobeCore, Omicron, Qualitrol and Transformer Clinic. GlobeCore’sRead More
Most modern transformers use oil for insulation and cooling. The condition of oil defines transformer reliability and continuous power supply to the clients. Therefore, all procedures related to insulating fluid must be performed in strict accordance with the standards for quality and safety. In this article we will look at the process of transformer oilRead More
Dielectric strength is an indicator used to assess insulation properties of transformer oil. It is very often equated with breakdown voltage, but their numerical values are not equal. Breakdown voltage is a minimum voltage applied to an insulation, resulting in its breaking down and becoming electrically conductive. At the same time dielectric strength is aRead More
Power transformers are the basis of the modern electric power industry. Their reliable operation guarantees the delivery of electricity to large industrial facilities and ordinary consumers. In this article we will consider the oil servicing – as an important component of the transformer insulation maintenance. We shall begin with functions. Oil in transformer isolates individualRead More
April 23 – 27, 2017 in Jeddah (Saudi Arabia), GlobeCore engineers carried out an effective commissioning of the CMM-0,6 unit. This equipment is ideal for organizations that have oil-filled equipment and requires their insulating oil cleaned from mechanical impurities, water and gases with processing rate 158 gal / h. The CMM-0,6 unit circulates the oilRead More
February 15, 2017 the technical team of GlobeCore commissioned the CMM-0.6M unit in Gresik (Indonesia). The equipment is designed for cleaning insulating oils with viscosity below 70 cSt at 50 ° C from mechanical impurities and water. The unit provides oil purification to cleanliness level of ISO – -/14/12 at the initial cleanliness level ofRead More
