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Electrical Power System Protection [electronic resource] / by A. Wright, C. Christopoulos.

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Electrical Power System Protection provides practising engineers with the most up-to-date and comprehensive one -volume reference and tutorial on power system protection available. Concentrating on fundamental methods and technology and with extensive examples drawn from current practice internation...

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Bibliographic Details
Online Access: Full Text (via Springer)
Main Author: Wright, A.
Other Authors: Christopoulos, C.
Format: Electronic eBook
Language:English
Published: Boston, MA : Springer US, 1993.
Subjects:
Engineering.
Computer engineering.
Computer organization.
Table of Contents:
  • 1 Fuses
  • 2 Current transformers
  • 3 Voltage transformers
  • 4 Overcurrent and earth fault protection
  • 5 Current-differential protective schemes
  • 6 The protection of transformers
  • 7 The protection of rotating machines
  • 8 The protection of busbars
  • 9 The protection of overhead lines and cables by current-differential schemes
  • 10 Interlock and phase-comparison schemes for the protection of overhead lines
  • 11 Distance-type protective schemes for overhead lines and cables
  • 12 Ultra-high-speed schemes for the protection of long transmission lines
  • Appendix A The testing and application of power-system protective equipment
  • A.1 Performance requirements
  • A.2 Testing of protective devices and equipment
  • A.2.1 Fuselinks
  • A.2.2 Current and voltage transformers
  • A.2.3 The testing of relays
  • A.2.4 The testing of protective schemes
  • A.3 Automatic testing of relays and protective schemes
  • References
  • Appendix B Percentage and per-unit quantities
  • Appendix C Transformations of three-phase quantities
  • C.1 Voltage, current and impedance transformation
  • C.2 Transformation into symmetrical components
  • C.3 Other transformations
  • References
  • Appendix D The determination of power-system behaviour using symmetrical components
  • D.1 Sequence impedances
  • D.1.1 Three-phase synchronous machines
  • D.1.2 Transformers
  • D.1.3 Overhead lines and cables
  • D.1.4 The effects of physical asymmetry
  • D.2 Sequence networks
  • D.2.1 Earthing of neutral points
  • D.2.2 Transformer connections
  • D.3 The interconnection of sequence networks
  • D.3.1 Balanced three-phase normal or fault conditions
  • D.3.2 Conditions when a phase-to-phase fault is present
  • D.3.3 Conditions when a single phase to earth fault is present
  • D.3.4 Impedances used in sequence networks
  • D.4 Numerical example
  • D.4.1 Short-circuit between phases 'b' and 'c' and earth
  • D.4.2 Short-circuit between phase 'a' and earth
  • Reference
  • Concluding remarks.

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