IEEE Standard for Inverse-Time Characteristics Equations for Overcurrent Relays
STANDARD published on 5.2.2019
Designation standards: IEEE C37.112-2018
Publication date standards: 5.2.2019
The number of pages: 25
Approximate weight : 75 g (0.17 lbs)
Country: International technical standard
Category: Technical standards IEEE
Revision Standard - Active.
The inverse-time characteristics of overcurrent relays are defined in this standard. Operating equations and allowances are provided in the standard. The standard defines an integral equation for microprocessor relays that ensures coordination not only in the case of constant current input but for any current condition of varying magnitude. Electromechanical 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.
ISBN: 978-1-5044-5351-6, 978-1-5044-5352-3
Number of Pages: 25
Product Code: STD23438, STDPD23438
Keywords: inverse-time characteristics, overcurrent relays
Category: Protective Relaying