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Schneider Electric Cahier Techniques

Cahiers Techniques 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 catalogues. Furthermore, “Cahiers Techniques” are often considered as 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 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
  • Secured energy

Few words more about Schneider Electric

Electrical Products //

Under Electricity distribution, the Group 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, the Group offers products to control and supply power to equipment such as contactors, overload relays, soft starters, speed drives, sensors and operator terminals.

Schneider Electric also offers configuration, programming and operating support software, communication networks and field buses. Under Secured energy, the Group offers APC’s UPS systems.

Schneider Electric operates mainly in Europe, Asia Pacific and North America. In 2008, the Schneider Electric acquired ECP Tech Services, Marisio, Wessen, RAM Industries, Xantrex and American Power Conversion (APC). In past 20 years Schneider Electric released around 70 technical publications related to electricity and automation, and these publications are listed below.

All documents, EE software and EE books are free to download.

No. Description Download
1 Active harmonic conditioners and unity power factor rectifiers .
2 Analysis of three-phase networks in disturbed operating conditions using symmetrical components .
3 Automatic transfering of power supplies in HV and LV networks .
4 Basic selection of MV public distribution networks .
5 Behaviour of the SF6 – MV circuit-breakers Fluarc for switching motor starting currents .
6 Breaking by auto-expansion .
7 Calculation of short-circuit currents .
8 Calculations for LV and HV networks .
9 Cohabitation of high and low currents .
10 Control equipment for MV capacitor banks .
11 Control-monitoring and protection of HV motors .
12 Current transformers – how to specify them .
13 Current transformers – specification errors and solutions .
14 Current transformers for HV protection .
15 Data acquisition – Detection .
16 Dependability and LV switchboards .
17 Dependability of MV and HV protection devices .
18 Design and use of MV current-limiting fuses .
19 Development of LV circuit breakers to standard IEC 947-2 .
20 Directional protection equipment .
21 Discrimination with LV power circuit-breakers .
22 Disturbances in electronic systems and earthing systems .
23 Dynamic stability of industrial electrical networks .
24 Earthquakes and electrical equipment .
25 Electric motors… and how to improve their control and protection .
26 Electrical disturbances in LV .
27 Electrical installation dependability studies .
28 Electrodynamic forces on busbars in LV systems .
29 Electronic starters and variable speed drives .
30 EMC – electromagnetic compatibility .
31 Enclosures and degrees of protection .
32 Energy savings in buildings .
33 Energy-based discrimination for low-voltage protective devices .
34 Extra losses caused in high current conductors by skin and proximity effects .
35 Fault arcs on busbar sets and switchboards .
36 Ferroresonance .
37 From current transformers to hybrid sensors, in HV .
38 Fuzzy logic .
39 Harmonic disturbances in networks, and their treatment .
40 Harmonics upstream of rectifiers in UPS .
41 High availability electrical power distribution .
42 HV industrial network design .
43 Integration of local power generation in industrial sites and commercial buildings .
44 Intelligent LV switchboards .
45 Introduction to dependability design .
No. Description Download
46 Inverters and harmonics (case studies of non-linear loads) .
47 Lightning and HV electrical installations .
48 LV breaking by current limitation .
49 LV circuit-breaker .
50 LV circuit-breakers confronted with harmonic, transient and cyclic .
51 LV protection devices and variable speed drives (frequency converters) .
52 LV surges and surge arresters LV insulation co-ordination .
53 MV public distribution networks throughout the world .
54 Neutral earthing in an industrial HV network .
55 Overvoltages and insulation coordination in MV and HV .
56 Power Quality .
57 Power supply of lighting circuits .
58 Protection of electrical distribution networks by the logic selectivity system .
59 Protection of industrial and tertiary MV networks .
60 Protection of MV-LV substation transformers .
61 Residual current devices In LV .
62 SF6 properties, and use in MV and HV switchgear .
63 System earthings in LV .
64 System earthings worldwide and evolutions .
65 The behaviour of SF6 puffer circuit-breakers under exceptionally severe conditions .
66 The IT system earthing (unearthed neutral) in LV .
67 The singularities of the third harmonic .
68 Thermal study of LV electric switchboards .
69 Uninterruptible static power supplies and the protection of persons .
70 Vacuum switching .

Low voltage / Medium voltage / Data Center Expert Guides

No. Description Download
1 Coordination and protection of busbar distribution .
2 Ground Fault Protection .
3 Increasing availability of LV electrical networks .
4 Coordination of LV protection devices .
5 Lighting Technical Guide New star .
5 Loading Considerations When Paralleling Power Transformers star .
6 Designing a metering system for small and medium-sized buildings star .
7 MV Network Design Book With Exercises and Answers star .
8 Electrical Network Design For Efficient Wastewater Treatment Plants New star .
9 Guidelines To Data Center Commissioning New star .
10 Medium voltage switchgear application guide (transformers, motors etc.) New .
11 Panel builder design guide for LV power factor correction cubicles New .
12 Testing specifications for preventive maintenance of electrical equipment New .
13 Control Panel Technical Design Guide (EMC Protection and Panel Wiring Tips) New .

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  1. 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


  2. Senan
    Jul 12, 2019

    Thanks for good information . Very very helpful

    Aug 28, 2018

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

    CS Nambisan

  4. talal abu sharkh
    Aug 13, 2018

    Thanks so much

  5. 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

  6. salah doukhane
    Nov 14, 2016

    merci beaucoup.

  7. 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

  8. 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.

  9. Mohamed Hendy
    Dec 24, 2013

    Thank u

    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!


      • 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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