February 25, 2020
This white paper provides a basic structure for calculating Step Distance Relay settings which utilities can follow to implement their own protection philosophy, establish a process for relay setting development, and ensure compliance with NERC PRC-027-1 Requirement 1. It also provides the reader information on software solutions for building and storing an entire protection philosophy to maintain uniformity and consistency.
September 17, 2019
There is an increasing demand for utilities to define a relay settings process and check relay coordination which is driven by regulatory requirements such as the North American Electric Reliability Corporation (NERC) PRC-027-1 standard. In this white paper, we outline the differences between a manual process and a novel, automated process for fulfilling Requirement 1 (R1) and Requirement 2 (R2) of the PRC-027-1 standard.
August 22, 2019
In this white paper, we outline template standardization, which is an increasingly common approach being adopted by utilities to help reduce errors in the relay settings development process. We also present intelligent templates and explain how they enable a more automated process that will further decrease human error, create an efficient peer review process, and ultimately, produce high quality settings.
February 28, 2019
The process to develop relay settings is complex, and protection engineers must navigate a labyrinth of complicated and broken processes to complete a typical setting job. All these requirements and expectations may lead engineers to seek out new career options, meaning utilities must be creative in finding ways to improve their internal processes in order to keep talented employees. Read about our solution.
February 28, 2019
Unique expertise will be crucial in putting together a process which power plant owners can easily implement and apply to meet the requirements for PRC-027-1. This is where automation tools like Settings Automation Relay Assistant (SARA) can help by streamlining the entire relay setting development process.
July 2, 2015
This instructional paper provides step-by-step instructions on how to calculate the line parameters for a 138kV transmission line. In addition, this application note also presents calculations for counting the ground wire which requires the use of a three-by-three matrix. Lastly, this paper also compares the calculated results to the CAPE line constant program.