rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Overcurrent protection
    sub title: NEC Article 240 and beyond
  name:
    name part: Bierals, Gregory P.
    name part: 1946-
    role:
      role term: creator
    role:
      role term: author.
  name:
    name part: Knovel (Firm)
  type of resource: text
  genre: Electronic books.
  origin info:
    place:
      place term: xx
    date issued: 2021
    edition: First edition.
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
    extent: 1 online resource (x, 100 pages)
  abstract: An overcurrent is caused by a short-circuit, ground-fault, or an overload. A short-circuit may be hundreds or even thousands of times above the normal operating current. This type of fault may be an arcing fault between ungrounded conductors or between an ungrounded conductor and a grounded (usually, a neutral) conductor, a line-to-line arcing fault may produce a current of 74% of a 3-phase bolted fault. A line-to-neutral arcing fault will be somewhat less. A line-to-line bolted fault, the equivalent, of the conductors bolted together, may be up to 100% of the available short-circuit current. A line-to-neutral bolted fault may be in excess of 100% of the 3-phase bolted fault at the source, but considerably less downstream. A ground-fault, that is, the equivalent of a connection between an ungrounded conductor and the equipment grounding system, will produce a current that may be 38% or higher of the 3-phase bolted fault current. These types of faults are typically arcing faults which normally are intermittent in nature. That is, they strike and restrike over time and may produce a short-circuit fault due to insulation damage. Once again, a line-to-equipment ground fault near the source may produce a fault current of over 100% of the 3-phase bolted fault, but considerably less downstream. An overload typically ranges from one to six times the normal current, and are normally caused by motor starting currents or transformer magnetizing currents. These conditions are of such short duration that the circuit components are not damaged. This book has a detailed analysis of these types of faults, along with explanations and examples of the various types of overcurrent protective devices to assure proper protection. This volume has extensive information on the application of overcurrent protection for conductors and equipment. The reader will be able to calculate fault currents as well as establishing the short-circuit withstand rating of conductor insulation and to determi…
  table of contents: 1. Definitions2. Overcurrent Protection-Over 1000 Volts3. Motor Circuits4. Selective Coordination5. A Comprehensive Analysis of A 3-Phase, 4-Wire Distribution SystemOvercurrent ProtectionAnswer key
  note: Gregory P. Bierals.
  note: Gregory P. Bierals, President, Electrical Design Institute, LLC-has presented seminars worldwide on various topics including the National Electrical Code, Grounding Electrical Distribution Systems, Designing Overcurrent Protection, Electrical Equipment Maintenance, and Designing Electrical Systems for Hazardous (Classified) Locations. He has maintained an extensive client list during the past 45 years, and he has earned the reputation of being an extraordinary lecturer as a result of his organization of materials and knowledge of this subject.
  subject:
    topic: Electric power distribution
  subject:
    topic: Electric currents
    topic: Grounding
  subject:
    topic: Electric wiring
    topic: Safety measures
  subject:
    topic: Courants électriques
    topic: Mise à la terre
  subject:
    topic: Installations électriques
    topic: Sécurité
    topic: Mesures
  subject:
    topic: SCIENCE
    topic: Energy
  subject:
    topic: TECHNOLOGY
    topic: General
  subject:
    topic: TECHNOLOGY
    topic: Electricity
  subject:
    topic: Electric currents
    topic: Grounding
  subject:
    topic: Electric power distribution
  subject:
    topic: Electric wiring
    topic: Safety measures
  classification: TK3285
  classification: 621.319
  related item:
    title info:
      title: Overcurrent protection
    name:
      name part: Bierals, Gregory P., 1946-
    origin info:
      publisher: [Place of publication not identified] : River Publishers, 2021
      edition: First edition.
    identifier: (OCoLC)1261879672
  identifier: 9781003207290
  identifier: 1003207294
  identifier: 9788770226202
  identifier: 8770226202
  identifier: 9781000521498
  identifier: 1000521494
  identifier: 9788770226219
  identifier: 8770226210
  identifier: 9586522 IEEE
  identifier: 9781003207290 Taylor & Francis
  identifier: http://proxy.library.tamu.edu/login
  record info:
    record content source: TYFRS
    record creation date: 211007
    record change date: 20230110224609.0
    record identifier: in00004640586
    language of cataloging:
      language term: eng