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BS 142-4.1

84th Edition, April 30, 1984

Complete Document

Electrical Protection Relays Part 4: Requirements for Multi-Input Energizing Quantity Relays Section 4.1: Specification for Biased (Percentage) Differential Relays

Includes all amendments and changes through Reaffirmation Notice , August 15, 1992


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Product Details:

  • Revision: 84th Edition, April 30, 1984
  • Published Date: August 15, 1992
  • Status: Not Active, See comments below
  • Document Language: English
  • Published By: British Standards Institution (BSI)
  • Page Count: 12
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

Specifies the performance requirements for the relays and the parameters whose values are to be declared by the manufacturer. Recommends methods of presenting the characteristics and performance of these relays. Applies to relays designed to detect faults, particularly in a.c. generators, motors and transformers. Does not apply to relays designed for busbar protection or to current differential relays.