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Tuesday, April 21, 2020 | History

3 edition of Motor-uniselectors with noble-metal contacts in telephone switching systems found in the catalog.

Motor-uniselectors with noble-metal contacts in telephone switching systems

Richard Krause

Motor-uniselectors with noble-metal contacts in telephone switching systems

  • 344 Want to read
  • 20 Currently reading

Published by Van Nostrand in New York, London .
Written in English

    Subjects:
  • Telephone, Automatic.

  • Edition Notes

    Statementby Richard Krause; translated from the second, revised German edition (by Karl-Heinz Brinkmann); translation editor J. F. Hesketh.
    SeriesTelephone engineering
    ContributionsBrinkmann, Karl-Heinz., Hesketh, J. F.
    Classifications
    LC ClassificationsTK6397
    The Physical Object
    Pagination205p.,11plates(3fold) :
    Number of Pages205
    ID Numbers
    Open LibraryOL15045129M
    ISBN 100442045328
    OCLC/WorldCa30300272

      Addeddate Identifier Identifier-ark ark://tv Ocr ABBYY FineReader Ppi Scanner Internet Archive Python library dev4. FEATURES. Advanced switch technology (use of silver contacts ensures safe and durable operation). Across the line, motor starting - up to 75hp/V. General Use Rating 16A to A/V. 10kA short circuit withstand rating. Horsepower ratings. Snap on auxiliary contacts. DIN rail and panel mount. Toggle switches. Many types of Enclosed.


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Motor-uniselectors with noble-metal contacts in telephone switching systems by Richard Krause Download PDF EPUB FB2

Motor-uniselectors with noble-metal contacts in telephone switching systems (Telephone engineering) Unknown Binding – January 1, by Richard Krause (Author) › Visit Amazon's Richard Krause Page. Find all the books, read about the author, and more.

5/5(1). Motor Uniseletors with Noble Metal Contacts in Telephone Switching Systems $ Paul G. Slade began his studies in the fascinating world of electrical contacts as a graduate student at the University of Wales, Cardiff, UK in the mids. Since that time, he has been involved with electrical contacts both as a research scientist and as a 5/5(3).

Square D AR Overload Motor-uniselectors with noble-metal contacts in telephone switching systems book Element: Electronic Motor Starters: : Industrial & Scientific. Motor-uniselectors with noble-metal contacts in telephone switching systems book paper describes a class of new electromechanical switching devices, the ferreeds, which were developed for use as crosspoints in telephone switching networks.

The ferreeds are characterized by-high-speed operation, sealed noble metal contacts, small size, and ability to respond to co-ordinate excitation.

The step-by-step telephone switching system (as it is known in the Bell Telephone System; the “Strowger” system elsewhere) was the earliest “mechanized” telephone switching system to receive broad acceptance, and it remained important for many decades.

This is one of a series of articles on this system, and it describes the selector File Size: KB. Electromechanical switching devices Electromechanical switching devices can be split broadly into two classes: those which can be used to choose a specific set of contacts from a con- siderable number of possible selections, e.g.

uni- selectors and 2-motion selectors; and those which, when operated, will always establish the same set of Cited by: 2. The inner workings of an analoge phone switch PBX, Step by Step Switch Telephone Setup 4 A Call To PEnnsylvania Through Motor-uniselectors with noble-metal contacts in telephone switching systems book Step-by-Step Telephone Switching System.

Considered to be the first book devoted to the subject, Linear Synchronous Motors: Transportation and Automation Systems, Second Edition evaluates the state of the art, demonstrating the technological innovations that are improving the design, construction, and performance of modern control systems.

This new edition Motor-uniselectors with noble-metal contacts in telephone switching systems book only illustrates the development 5/5(1). On each telephone call, a talking path must be set up between the calling and the called telephone.

The method of making this connection, known as switching, has progressed from the simplest of hand operated switches through the more complex manual systems to the present mechanical switching systems.

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An advantage of _____ contacts is that the oxide (rust) that forms on the metal is an excellent conductor of electricity. mechanical interlock A(n) ________ is the arrangement of contacts in such a way that both sets of contacts cannot be closed at the same time.

by any other type of automatic telephone switch, (2) The switch is similar to other designs of uniselectors in that wipers traverse arcs of contact segments. Beyond this, however, the similarity ceases, the design representing a radical departure from conventional practice.

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