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power transformer testing procedure

Low Voltage Laboratories
Low Voltage Standards: 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 […]
Low Voltage Laboratories
Low Voltage Standards: IEC 61992
In electrical engineering, international standards ensure electrical systems’ safety, reliability, and efficiency. The standards IEC 61992-2, IEC 61992-3, IEC 61992-4, and IEC 61992-6 are crucial for low-voltage applications in railway systems. Each standard addresses specific requirements for electrical equipment and installations, ensuring their safe and effective operation. IEC 61992-2 IEC 61992-2 specifies requirements for insulation […]
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 New editions […]
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 […]
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 […]
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 standards […]
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 […]
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:
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 […]
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 […]
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 […]
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 […]
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 […]
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:
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 – […]
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 […]
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 […]
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 […]
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 […]
Technical papers
Testing of elastomeric isolators for nuclear power plants
Nowadays, the design of nuclear power plants (NPP) is characterized by enhanced safety level. In particular, GEN III+ and GEN IV reactors have to be highly secure and designed to withstand extremely severe external events such as floods, tsunamis, tornadoes, plane crashes, fires and, in particular, earthquakes. Seismic isolation is considered the most promising technology […]