Electrical power system protection

Author(s)

Bibliographic Information

Electrical power system protection

A. Wright and C. Christopoulos

Chapman & Hall, 1993

1st ed

Available at  / 7 libraries

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Note

Includes bibliographical references and index

Description and Table of Contents

Description

This text provides practising engineers with a reference and tutorial on power system protection. Each chapter describes the various devices and schemes used in the protection of electrical power systems. Schemes currently being produced are examined at length. In each case, the behaviour of the items of plant to be protected and the faults which may occur are thoroughly explored. Numerous examples are drawn from current international practice to illustrate the points being made. A brief history of early electronic power system devices is also included, written in a clear and concise manner, without recourse to lengthy mathematical treatments. The limitations of early equipment are outlined and the subsequent developments or features needed to make them suitable for present-day systems are presented. This book should be a reference tool for engineers involved in power system protection. This book is designed for engineers, researchers and graduate students in electrical engineering.

Table of Contents

  • Part 1 Fuses: historical background
  • basic requirements
  • fuse types and constructions
  • the behaviour of cartridge fuselinks
  • the construction of cartridge fuses
  • semi-enclosed fuses
  • expulsion fuses
  • liquid fuses
  • the applications of fuses
  • the future. Part 2 Current transformers: historical background
  • conventional current transformers
  • linear couplers
  • current transformers with air-gapped cores
  • non-conventional current transducers
  • specifications and testing
  • the future. Part 3 Voltage transformers: historical background
  • electromagnetic voltage transformers
  • capacitor-voltage transformers
  • recent developments
  • specifications and testing
  • the future. Part 4 Overcurrent and earth-fault protection: historical background
  • relay connections and operation
  • electronic relays
  • applications of overcurent, earth-fault and directional relays
  • the application of directional current-operated relays
  • current and voltage transformers
  • standard specifications
  • the future. Part 5 Current-differential protective schemes: historical background
  • factors affecting current-differential schemes
  • the use of biasing features
  • implementation of schemes. Part 6 The protection of transformers: historical background
  • the construction and behaviour of transformers
  • the application of protective schemes and devices to power transformers with two or more windings per phase
  • the protection of earthing transformers
  • auto transformers and their protection
  • the future. Part 7 The protection of rotating machines: historical background
  • protective devices and schemes
  • the protection of motors
  • the protection of alternators
  • the future. Part 8 The protection of busbars: historical background
  • busbars
  • sectionalization
  • faults on or near busbars
  • positioning of current transformers and incorrectly protected zones
  • protective arrangements for busbars
  • relays used in current-differential schemes
  • manual and automatic testing
  • the future. Part 9 The protection of overhead lines and cables by current-differential schemes: historical background
  • cables and overhead transmission and distribution lines
  • the application of current-differential protective schemes
  • the application of current-differential schemes to multi-ended circuits
  • the application of current-differential schemes to lines and cables terminated with transformers
  • the future.

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