The issues concerning testing and verification of the correctness of differential and polarizing circuits are described and discussed in this guide. The intention of this guide is to help the reader to detect errors in the wiring of protective relays that might cause erroneous operations of protection systems. It is essential to follow systematic testing procedures and record the observations in a proper organized manner. The records should include documentation of all measurements and a comparison with the desired results.
Working Group Details
IEEE Guide for Differential and Polarizing Relay Circuit Testing
Withdrawn Standard. Withdrawn Date: May 20, 1996. No longer endorsed by the IEEE. The following topics were dealt with: IEEE C37.103-1990, IEEE Guide for Differential and Polarizing Relay Circuit Testing, covers the testing and verification required to ensure correct connections for ground relay polarizing and differential relay connections. Relay calibration, setting, insulation, and instrument transformer tests are referred to in this guide and are assumed to be developed by the individual user. This guide is not intended to discuss these aspects in detail.