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power transformer testing procedure

Services IEC/IEEE Testing Services and recent updates
IEEE C57.164:2021 – Guide for establishing Short-Circuit Withstand Capabilities of Power Transformers, Regulators, and Reactors
This IEEE Guide describes the ways to establish the capabilities for withstanding short-circuit currents resulting from external short-circuit faults. The procedures described in this document are always based on the results of actual short-circuit tested transformers , being used directly as reference or the evaluated short-circuit stresses during such tests . Other standards and updates […]
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Technical papers
Safety issues in case of internal arc on HV cable terminations, bushings
Worldwide demand for new T&D networks will increase in the near future pushing the utilities to install a larger number of high voltage equipment like cable terminations, bushings and surge arresters. Meanwhile the attention to environmental and safety issues is generally increasing . The aim of this paper is to analyze the potential risks associated […]
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Technical papers
Ferroresonance in Inductive Voltage Transformers Or Power Voltage Transformers: analysis, laboratory tests and solutions
A ferroresonance analysis related to HV Inductive Voltage Transformers (IVT) and power Voltage Transformers or Station Service Transformers (PVT/SST) was addressed to develop models based on EMT formulation, enabling detailed ferroresonance risk analyses in specific HV station conditions and helping in the equipment technical specifications (including anti-ferroresonance remedial provisions). The research relied on a comparison […]
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Testing Labs
Services IEC/IEEE Testing Services and recent updates
International Standards provide instructions, guidelines, rules, or definitions that are then used to design, manufacture, install, test & certify, maintain, and repair devices and systems. They are essential for quality and risk management; they help researchers to understand the value of innovation and allow manufacturers to produce products of consistent quality and performance . International […]
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Low Voltage Laboratories
IEC 61992-6
IEC 61992-6 specifies requirements for DC switchgear assemblies in railway applications. This standard ensures that switchgear assemblies can safely manage and distribute electrical power in DC systems. It provides guidelines for the design, construction, and testing of these assemblies to ensure they can withstand the electrical and mechanical stresses typically encountered in railway environments​​​​. Key […]
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Operational studies
Advisory services
Operational studies
The ongoing decarbonization of power systems is introducing new challenges in terms of managing transmission and distribution networks while guaranteeing the security and resilience of the system: the generation mix is undergoing an evolution (in some cases a revolution), with more distributed generation coming onto the system, more alternative energy storage capacity being added, and […]
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Continuous emission monitoring
Air
Continuous emission monitoring
Power plants need regular emission monitoring, in order to verify that they comply with emission limits set by the relevant environmental agencies. With our deep experience in the emission monitoring sector, CESI can monitor gas flue emissions of power plants. Our service portfolio includes:
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Asset Management & Maintenance Optimization
Operation Optimization
Asset Management & Maintenance Optimization
Asset management is about intelligent, advanced maintenance based on IT systems, databases and network connectivity. A properly deployed asset management system will monitor the devices and components that comprise the electrical network, helping to define timely maintenance cycles and supporting operational staff involved in the day-to-day management of the power assets. With more than 10 […]
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Grid code compliance
Operation Optimization
Grid code compliance
As the power system decarbonizes, balancing services will have to evolve as well, starting with frequency and voltage control. Every power plant must prove its compliance to the grid code requirements, running specific tests when it is commissioned and upgraded and on a regular basis thereafter. With our deep experience of grid code requirements and […]
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Planning studies
Advisory services
Planning studies
The ongoing decarbonization of power systems is affecting them in a variety of ways, including: a (r)evolution in the generation mix, the rise of distributed generation, the deployment of energy storage capacity, enhanced interconnections between countries and more integrated power markets. In addition, the electrification of sectors that still rely on fossil fuels is changing […]
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TYPE <mark class='ep-highlight'>TEST</mark> OF ENERGY METER
Type Test of Energy Meter
TYPE TEST OF ENERGY METER
In June 2020, new versions of the EN-IEC product standards for electricity meters, the EN-IEC 62052-11, EN-IEC 62053-21, -22, -23, and -24, were published. These second editions cancel and replace the first editions published in 2003, including their 2016 amendments. This edition constitutes a technical revision. In the 2020 versions, it is mentioned that the […]
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Industrial Plants
Conventional PP, Industrial & Oil&gas
Industrial Plants
CESI has decades of experience working in industrial plants on environmental, safety, business continuity and energy issues. While environmental and safety regulations are determined by national and/or regional legislation, business continuity and optimization of energy costs are key factors in a company’s competitiveness. The efficient operation of production plants is strictly dependent on the reliability […]
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Compliance
Monitoring & Diagnostic
Compliance
Companies face a growing list of environmental rules and regulations, both local and national, that they must comply with. CESI’s services include:
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Low Voltage Laboratories
IEC 61439-2, IEC 61439-6, IEC 61643-11, IEC 61921, IEC/TR 61641
Adhering to international standards ensures the safety, reliability, and efficiency of electrical systems in electrical engineering. The standards IEC 61439-2, IEC 61439-6, IEC 61643-11, IEC 61921, and IEC/TR 61641 are crucial for various low-voltage applications. Each standard addresses specific electrical equipment and installation requirements, ensuring safe and effective operation. IEC 61439-2 IEC 61439-2 specifies requirements […]
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Jicable’15
News
Jicable’15
​ CESI Group will be present with four papers at Jicable Conference in Versailles, France from 21st to 25th June. Jicable is the main forum where you can meet with the major experts in AC and DC insulated power cables and their accessories, from low voltage and special cables up to ultra-high voltage cables as […]
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System Adequacy and Market Modelling
Views
System Adequacy and Market Modelling
The Electric power System has a very important role for the economic development and welfare and is at the heart of a sustainable way to use energy. It is the largest machine ever been engineered: in Italy 60 thousand kilometers of transmission power lines – one and half time the circumference of the Earth – […]
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Technical papers
Technical design requirements and test experiences on Composite Hollow Core Insulators regarding pollution performance under AC and DC stress
This paper is a common approach of manufacturers of insulators, electrical equipment, transmission system and test labs to verify the expected behaviour in laboratory and outdoor tests . For the electrical design of composite insulators, different material properties and shed profiles for AC and DC conditions have to be taken into account respectively, considering the […]
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Waste from <mark class='ep-highlight'>Power</mark> generation
Waste & Wastewater
Waste from Power generation
Waste management is an ongoing concern in all production sectors because of companies’ increased environmental awareness and the transition to a circular economy. The power sector is carrying out various initiatives to improve its waste recovery and needs specialist support. CESI can provide this support across the whole waste management cycle, from production to final […]
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CESI supports Jordan to reduce Energy losses
News
CESI supports Jordan to reduce Energy losses
Under the high patronage of the Jordanian Energy Regulatory Authority ERC, the three Distribution Companies of Jordan (JEPCO, EDCO and IDECO) have selected, after a tough international tendering procedure , CESI to model and study the energy losses in the Jordanian power System, proposing a tailored road map for the reduction of technical and non-technical […]
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Technical papers
Maximum feasible penetration of non-programmable RES generation in power systems
​The large-scale development of renewable sources, with particular reference to wind, in the generation mix might introduce several problems for a secure management of the power system, due to a higher generation uncertainty, thus requiring careful investigations by the responsible for planning and the involved system operators. In this context, CESI has developed a thorough […]
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