Supports standard Inverse Definite Minimum Time (IDMT) curves (Normal Inverse, Very Inverse, Extremely Inverse) and Definite Time (DT) configurations.
$$t = TMS \times \frack(I/I_p)^\alpha - 1$$ Where:
Always refer to the latest manual from Siemens/Reyrolle. Incorrect wiring or settings can cause maloperation or protection failure. 7sr511 manual
Reyrolle 7SR511 (part of the Reyrolle 5 series by Siemens) is a high-performance overcurrent and feeder protection relay designed for modern electricity networks. The manual for this device serves as a comprehensive technical guide for protection engineers and commissioning personnel. Manual Overview and Purpose 7SR51 Device Manual
For those looking for additional resources, the following downloads and links are available: Reyrolle 7SR511 (part of the Reyrolle 5 series
: Covers day-to-day operation, front panel interface usage, and security settings.
Proper installation ensures long-term operational reliability and safety. Panel Mounting front panel interface usage
The manual provides a step-by-step guide on how to use the software or the front-panel HMI to input settings. This includes setting the "Pickup" current and selecting the correct "Time Multiplier" (TMS) based on your coordination study. Communication Interfaces