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protective relay testing standards

<mark class='ep-highlight'>Protection</mark> & Substation Automation Laboratories
Testing Labs
Protection & Substation Automation Laboratories
The ongoing energy transition requires digitalization with intelligent electronic devices for measurement, protection , and control in power systems. Consequently, larger and smarter grids demand more communication between grid components, as ensuring that energy flows are correctly monitored, protected and controlled is vital to delivering a stable and reliable electricity supply. We offer independent type testing and certification […]
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Arnhem
Labs
Arnhem
KEMA Labs Arnhem stands at the forefront of power industry testing , delivering specialized services unparalleled in scope and precision. Our state-of-the-art High Power Lab is equipped with six 2100 MVA short-circuit generators, enabling extensive AC and DC testing capabilities. Complementing this, our High Voltage Lab excels in Dielectric testing , ensuring a comprehensive examination […]
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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 […]
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Product Certification & Inspection Services
Product Inspections, Certification & Training
Product Certification & Inspection Services
The growing demand for electricity requires utilities to have solid transmission and distribution networks, both to ensure reliability and to reduce operation costs. Utilities need to be sure that their electrical equipment is robust and  reliable . Kema Labs 1  benefits from synergies between its laboratory testing and onsite inspections, as well as a wider […]
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System Adequacy and Market Modelling
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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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Audible noise & Vibration
Physical agents
Audible noise & Vibration
CESI provides consultancy services for occupational safety and public human health related to acoustics and vibration. We assess the exposure of workers and the public to noise and vibration by measurement surveys and modelling. We provide studies and design mitigation actions to reduce the impacts. CESI experts comply with the following technical standard development boards:  […]
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Synthetic <mark class='ep-highlight'>testing</mark> laboratories
Testing Labs
Synthetic testing laboratories
KEMA Labs has been a pioneer in developing synthetic test methods. Our Laboratories has achieved the most powerful short circuit and synthetic test capabilities ever in our independent testing and certification laboratory , which can short-circuit test 1,200 kV power equipment, with the highest short circuit power of up to 15,000 MVA. Reaching the high […]
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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 standards […]
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Services IEC/IEEE Testing Services and recent updates
IEC 62271-103 – Testing Services – Alternating current switches for rated voltages up to and including 52 kV
IEC 62271-103 revised in 2021 – The standard for alternating current switches IEC 62271-103 has been updated to align with other related product standards (for example IEC 62271-102 for earthing switches/disconnectors) for the kinematic chain and test on the position indicating device, making tests more uniform and have more clear acceptance criteria for the test […]
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Electromagnetic fields
Physical agents
Electromagnetic fields
CESI provides consultancy on occupational health and safety related to electromagnetic fields. We assess the exposure of workers and the public to EMF through measurement and modelling. We design mitigation studies, including shielding and other technical actions that can reduce low frequency fields. We assess electrical and magnetic fields with 2D and 3D calculation models. […]
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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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About us
GEPL
CESI | Gulf Electrical Power Laboratories (CESI | GEPL) – a joint venture between CESI S.p.A and GCCETL –  establishes state-of-the-art electrical testing facilities in Saudi Arabia. Located in Dammam, it performs a wide range of electromechanical testing activities and provides technical services according to the highest international standards . In particular, CESI | GEPL […]
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<strong>Certificazione di prodotto e servizi di ispezione</strong>
Ispezione di prodotto, certificazione e formazione
Certificazione di prodotto e servizi di ispezione
La crescente domanda di energia elettrica richiede alle utility di disporre di solide reti di trasmissione e distribuzione, sia per garantirne l’affidabilità che per ridurne i costi operativi. Le utility devono quindi accertarsi che le loro apparecchiature elettriche siano robuste e affidabili. Kema Labs 1  offre servizi di valutazione della conformità ben supportati dalle sinergie […]
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Supergrid VS distributed generation
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Supergrid VS distributed generation
Super Grid, Smart Grid, Renewable Energy Sources, Distributed Generation and other fashion concepts can be astonishing when they are put together and not clearly harmonized. In fact they only apparently, but not really, imply opposite visions of the future power system. Distributed Generation (DG) has been associated, at first, with a “small scale” concept of […]
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Bahrain selects CESI
News
Bahrain selects CESI
​Manama, Bahrain 24th July 2017 – CESI has been appointed to support the Bahrain’s Sustainable Energy Unit (SEU) in developing the technical and strategic regulatory requirements related to connecting distributed renewable energy resources into Bahrain’s national Electricity Grid owned by Electricity and Water Authority Bahrain (EWA). Bahrain’s Sustainable Energy Unit’s key objectives are to create […]
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