IEEE DRAFT C37.112 : D11 JAN 96

Superseded

Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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DRAFT STANDARD INVERSE-TIME CHARACTERISTIC EQUATIONS FOR OVERCURRENT RELAYS

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Superseded date: 23-07-2013

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Published date: 12-01-2013

Publisher: Institute of Electrical & Electronics Engineers

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Defines the inverse-time characteristics of overcurrent relays. Operating equations and allowances are provided in the standard. Defines an integral equation for microprocessor relays that assures coordination not only in the case of constant current input but for any current condition of varying magnitude. Electro-mechanical inverse-time overcurrent relay reset characteristics are defined, in the event that designers of microprocessor based relays and computer relays want to match the reset characteristics of the electromechanical relays.

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Comment Closes On
Document Type	Draft
ISBN
Pages
Published
Publisher	Institute of Electrical & Electronics Engineers
Status	Superseded
Superseded By	IEEE C37.112-1996

Standards Referencing This Book - (Show below) - (Hide below)

IEEE C37.90-2005	IEEE Standard for Relays and Relay Systems Associated with Electric Power Apparatus
IEC 60255-3:1989	Electrical relays - Part 3: Single input energizing quantity measuring relays with dependent or independent time

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