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3 phase transformer continuity test

Testing Labs
Transformer Test Laboratories
Kema Labs can test all kinds of transformers from distribution to power transmission. We have the world’s most powerful test laboratories for transformer testing , which has one of the highest levels of short circuit power on the European transmission grid . Each of our laboratories is equipped to deliver sufficient power for the most […]
Testing Labs
High Voltage Direct Current Laboratories
HVDC power transmission is becoming increasingly important as great amounts of energy generated by remote renewable energy sources have to be transported over large distances, and, its share grows rapidly. If transmission lines fail, it leads to huge outage costs that can seriously affect project cash flows. As a result, system operators and manufacturers are […]
Water
Power generation plants
Building power plants and running them sustainably requires detailed monitoring campaigns to assess the  health of the main environmental indicators. CESI has the experience and skills necessary to investigate the various environmental sectors affected in the different stages of the life cycle of generation plants. Hydroelectric plants: Thermoelectric plants Offshore wind plants (cable connection)
News
CESI at MEE 2014
​CESI has decided to join also this year the Middle East Electricity 2014 in Dubai (11-13 February 2014), confirming the strong strategic interest for the Middle East and GCC market . Middle East Electricity is the largest meeting place for international companies to be in contact with the key decision makers from over 100 countries […]
Remediation
Remediation project
Over the last 20 years, CESI has developed significant experience in soil and groundwater environmental remediation at industrial sites, in Italy and around the world. CESI designs remediation interventions at every stage of the project (from feasibility to execution. Our approach embraces innovation and sustainability in the choice of remediation technology and includes the following […]
Remediation
Environmental Site assessment & Feasibility Studies
Environmental impact assessments, including soil and groundwater investigation, are often mandatory, for example in response to a spill or when the site is part of larger Sites of National Concern. In other cases, Environmental impact assessment is required for contractual reasons (e.g. before the purchase or sale of a site) or where it is necessary […]
Technical papers
Testing experiences on extruded cable systems up to 525kVdc in the first third party worldwide laboratory
The booming of renewable power stations (solar and wind mill mainly), the increase use of Interconnectors and submarine cables, the construction of urban substations in big cities with intense population and the need to avoid the use the overhead lines (right of way and so on), are the main factors leading to the increasing amount […]
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 […]
Testing Labs
High Voltage Testing Laboratories
It has become increasingly important to be able to transport energy over longer distances, pushing manufacturers to research, develop and produce components that can operate at higher voltages. KEMA Labs High-Voltage laboratories is a renowned independent facility for testing and certifying medium and high voltage components used in electrical infrastructure . Our Laboratories can test […]
Testing Labs
Low Voltage Laboratories
Kema Labs LV test laboratories have been in operation for more than six decades. We have more than 15 test bays that can test that products meet international product design requirements and comply with international standards. Panels are tested in our own labs against the IEC 61439-1 standard, and can be carried out at both […]
About us
KEMA Labs
KEMA Labs is world renowned Testing , Inspections & Certification organization. Located at several sites across the globe, we combine traditional with state-of-the-art gear to ensure every kind of grid equipment, from medium- to ultra high-voltage , can be tested , satisfying today’s increasingly demanding criteria for performance and safety . Brief history 1927      KEMA […]
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
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 […]
News
CESI at MEE 2017
​From 14 to 16 February CESI   will attend the  Middle East Electricity (MEE) trade show. Our company is pleased to host its guests at its H 3 .E30 stand. There, CESI product developer managers,  Area managers and the CESI Sales Director of the testing Division will answer to any technical and commercial question relevant […]
Technical papers
Field measurements and frequency domain modeling of a 400 kV underground cable line
The length of XLPE-insulated underground cable lines in the European HV / EHV network is experiencing a fast growth due to the increasing number of submarine interconnections and suitability to be installed also in urban area with nil visual impact after installation. Use of cable stretches in combination with overhead lines has proven to be […]
Views
The Value of Certification
​Following powerful growth in the second half of last century, today’s certifications market is in flux, with both technicians and experts questioning the real value of certifications. As a consequence the certification body is increasingly the heart of this process and its choice, its engagement is the new challenge for companies asking for conformity assessment […]
CHALFONT LABORATORIES JOINS CESI
Milan, March 2, 2020 – The change in ownership of the Chalfont (USA) Laboratories’ from DNV GL to CESI has completed today. The independent testing facility in Chalfont is the largest of its kind in the United States. It features 1000 MVA and 2500 MVA short-circuit generators; a 1500 kV impulse generator; a 600-kV power […]
News
CESI’s strong presence at MEE 2015
​CESI will be participating for the 4th year in a row at the Middle East Electricity in Dubai (2- 4 March 2015), confirming the deep interest in the Middle East and GCC market. Middle East Electricity, is the largest meeting place for smart energy professionals to meet key decision makers from over 100 countries worldwide […]
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 […]
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: