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Schneider Electric Experience

This section is a collection of documents intended for engineers and technicians, people in the industry who are looking for more in-depth information in order to complement that given in product catalogs. Furthermore, Schneider Electric’s guides, papers and “Cahiers Techniques” are often considered as very helpful “tools” for training courses.

Schneider Electric Cahiers Techniques – A collection of documents intended for engineers and technicians
Schneider Electric Cahiers Techniques – A collection of documents intended for engineers and technicians

Schneider Electric provides knowledge on new technical and technological developments in the electrotechnical field and electronics. They also provide a better understanding of various phenomena observed in electrical installations, systems, and equipment.

Each “Cahier Technique” provides an in-depth study of a precise subject in the fields of electrical networks, protection devices, monitoring and control, and industrial automation systems.


About Schneider Electric

Schneider Electric SA. The Group’s principal activities are electricity and automation management. The Group operates under three major segments: electrical distribution, automation and control and secured energy.

Under Electricity distribution, the company offers electrical products such as circuit breakers, switches, safety lighting, prefabricated busbar trunking, modular switchgear, power line carrier communication networks, and voice-data-image solutions. Under Automation and Control, Schneider offers products to control and supply power to equipment such as contactors, overload relays, soft starters, speed drives, sensors, and operator terminals.

Schneider Electric operates mainly in Europe, Asia Pacific, and North America. In 2008, Schneider Electric acquired ECP Tech Services, Marisio, Wessen, RAM Industries, Xantrex, DMS and American Power Conversion (APC).

In past 40 years Schneider Electric released over 70 technical publications related to electricity and automation, and these publications are listed in this section.

Browse guides and studies

Note that all documents in this section are free to download. Navigate through sub-pages to discover all documents.

Current transformers – specification errors and solutions

After a reminder of current transformers (CTs), the author highlights the errors most often encountered when defining current transformers, an essential and little known link between the electrical network and the protection relays. It explains how to find a way… Read more

Sep 24, 2010

Current Transformers – How to specify them?

Electrical power management requires implementation of data processing units able to monitor networks or equipment and, as applicable, to initiate the appropriate actions… The protection plan must specify the operating or non-operating conditions for all the protections during a fault… Read more

Sep 24, 2010

Control-monitoring and protection of high voltage motors

Unit power of rotating machines frequently exceeds 100 kW in industry and large tertiary. In such cases and/or if the length of the supply line is particularly long (voltage drops, losses…), use of high voltage motors is advantageous. The purpose… Read more

Sep 24, 2010

Control equipment for MV capacitor banks

Switching-on a bank of capacitors which is connected in parallel to the network causes transient phenomena resulting from bank charging. As far as the current is concerned, the oscillating load provokes an overcurrent with an amplitude which is a function… Read more

Sep 23, 2010

Cohabitation of high and low currents

In our society today, the rapid development of digital systems using low current links (bus) has given rise to the critical problem formed by cohabitation of high and low currents. The real problem is how to reconcile electrical safety and… Read more

Sep 23, 2010

Calculations for LV and HV networks

This Cahier Technique publication is intended to provide a general overview of the main electrotechnical calculations carried out in engineering studies on electrical systems at all voltage levels. It is complementary to other Cahier Technique publications that deal more with… Read more

Sep 23, 2010

Calculations for LV and HV networks

Calculation of short-circuit currents

Electrical installations almost always require protection against short-circuits wherever there is an electrical discontinuity. This most often corresponds to points where there is a change in conductor cross-section. The short-circuit current must be calculated at each level in the installation… Read more

Sep 23, 2010

Breaking by auto-expansion

The term «auto-expansion» is used to cover a variety of techniques or breaking methods according to technical documents and circuit breaker manufacturers. This «Cahier Technique» first points out the main differences concealed by this term, as regards both breaking principles… Read more

Sep 23, 2010

Behaviour of the SF6

Many years ago, oil circuit-breakers (OCB) and air magnetic circuitbreakers (AMB) were the main breaking techniques for MV applications. OCB, mainly in Europe, i.e. bulk oil CB and minimum oil CB, were the single technology in the catalogue of the… Read more

Sep 23, 2010

Basic selection of MV public distribution networks

Medium voltage – MV – public distribution networks are constructed on the basis of two fundamental parameters which influence the majority of their components as well as their operation. These parameters are the neutral management mode and the operating voltage…. Read more

Sep 23, 2010

Basic selection of MV public distribution networks - Schneider Electric

Active Harmonic Conditioners And Unity Power Factor Rectifiers

Electric loads are becoming increasingly non-linear in the industrial, tertiary and even household sectors. These loads absorb non-sinusoidal currents which, under the effect of circuit impedance, distort the purely sinusoidal voltage waveform. This is what is known as harmonic disturbance of… Read more

Sep 23, 2010

Active Harmonic Conditioners And Unity Power Factor Rectifiers

14 Comments


  1. Syed Umer Moiz, 1277 Clark Blvd Milton Ontario L9T 6L1, Canada
    Feb 13, 2021

    Very helpful


  2. Vinayakam Balachandran
    Nov 05, 2019

    I have been associated with the design & manufacture of High Current & High Voltage Busbars for more than 45 years. I am in the process of writing a book titled “An Introduction to Busbar Systems” and expect it to be ready for publication by this year end.

    One of the chapters in the book is devoted to IMPEDANCE. I would like to seek permission from SCHNEIDER to capture information available in “Cashier technique no. 83” to be incorporated in the book. Needless to state that any of the content reproduced in the book will acknowledge the source.

    I would appreciate a positive response at your earliest convenience. Please feel free to contact me for any specific information that you may desire in connection with the above request.

    Best regards

    Sincerely yours

    Balachandran


  3. Senan
    Jul 12, 2019

    Thanks for good information . Very very helpful


  4. C.SUBRAMANIAN NAMBISAN
    Aug 28, 2018

    Many Thanks to you and you for compiling these articles which are so informative and useful.

    CS Nambisan


  5. talal abu sharkh
    Aug 13, 2018

    Thanks so much


  6. Nzuya Evans
    Nov 01, 2017

    What is the procedure of downloading your article please help coz I hv attempted several tims but in vain…otherwise I salute you


  7. salah doukhane
    Nov 14, 2016

    merci beaucoup.


  8. Anthony Bor
    Mar 31, 2016

    The documents in this website are fascinating and very help full I would however like to learn more on Earthing of DC supply system now that the world is turning to sustainable energy power


  9. Thabang Molelle
    Sep 23, 2015

    I ma studying electrical engineering at French South African Schneider Electric Education Center. I use Schneider Electric components they are very interesting and eventually making life simple. Hope i will, one get employed at Schneider Electric.


  10. Mohamed Hendy
    Dec 24, 2013

    Thank u


  11. MIRJANI.KH
    May 05, 2011

    As you know the Schneider group make one of the best relay,s “sepam series” and also other kind of protection. so a book or a paper about protection will be very useful


    • Edvard
      Jun 13, 2011

      Yes indeed! SEPAM is good protection relay with bunch of possibilities. However, maybe I will publish some technical article about SEPAM relays with info and catalogue or paper for download.

      Thanks fot the tip Mirjani!

      BR


      • hobo
        Jul 24, 2012

        Yes,I support Mirjani.SEPAM Relays,from my experience are one of teh best relays I have ever seen.


      • The Vinh
        Jun 03, 2015

        I am currently working at Schneider Electric.
        All documents on this website are very interesting and helpful with me.
        For the SEPAM relay, If you need any document please let’s me know.

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