Table of Contents

1 Overview
  1.1 Scope
  1.2 Purpose
2 References
3 Definitions
4 The time-current equation
  4.1 Coordination of inverse time-current characteristics
  4.2 The analytic equation
  4.3 Time dial
  4.4 Standard time-current characteristics
Annex A (Informative) - Derivation of the induction
                        characteristic
Annex B (Informative) - Bibliography

Abstract

Reviews various existing analytic techniques for representation of relay operating characteristic curved shapes and gives typical operating characteristic curve shapes for standardizing available inverse-time relay characteristics in microprocessor or computer relay applications.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Institute of Electrical & Electronics Engineers
Pages
ISBN
Supersedes	IEEE DRAFT C37.112 : D11 JAN 96