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IEEE C37.90-2005

$62.83

IEEE Standard for Relays and Relay Systems Associated with Electric Power Apparatus (Inactive Reserved)

Published By Publication Date Number of Pages
IEEE 2005
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Revision Standard – Inactive-Reserved. Service conditions, electrical ratings, thermal ratings, and testing requirements are defined for relays and relay systems used to protect and control power apparatus. This standard establishes a common reproducible basis for designing and evaluating relays and relay systems.

PDF Catalog

PDF Pages PDF Title
1 IEEE Std C37.90™-2005, IEEE Standard for Relays and Relay Systems Associated with Electric Power Apparatus
3 Title page
6 Introduction
Notice to users
Errata
Interpretations
7 Patents
Participants
9 CONTENTS
11 1. Overview
1.1 Scope
12 1.2 Purpose
2. Normative references
3. Special terms
4. Service conditions
4.1 Usual service conditions
14 4.2 Unusual service conditions
15 5. Electrical ratings
5.1 Standard current and voltage ratings for relays
16 5.2 Maximum design voltage and current for relays
5.3 Allowable variations from rated voltage for voltage operated
17 5.4 Allowable variation from rated voltage and current for prote
18 5.5 Allowable ac component in dc control voltage supply
5.6 Short time thermal withstand
19 5.7 Make, carry, and interrupt ratings for tripping output circu
20 5.8 Make, carry, and interrupt ratings for output circuits not r
5.9 Published data for auxiliary relays
22 6. Heating limits of temperature rise for coils
7. Mechanical requirements
7.1 Mechanical durability of relay operation
7.2 Mechanical durability of plug-in relays
7.3 Mechanical durability of relay setting controls
23 7.4 Shock and vibration
8. Insulation tests
8.1 General requirements
8.2 Dielectric power frequency tests
25 8.3 Impulse voltage tests
27 Annex A (informative) Applicable IEC standards
IEEE C37.90-2005
$62.83