IEEE DRAFT C37.112 : D11 JAN 96
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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
23-07-2013
12-01-2013
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.
| DocumentType |
Draft
|
| PublisherName |
Institute of Electrical & Electronics Engineers
|
| Status |
Superseded
|
| SupersededBy |
| 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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