This guide covers the tests required to ensure correct connections of differential relays and polarizing circuits of phase and ground relays. Although other preparatory tests are mentioned in this guide@ these tests are not discussed in detail.
IEEE C37.103-2004 history
2015IEEE C37.103-2015 Guide for Differential and Polarizing Relay Circuit Testing
2004IEEE C37.103-2004 Guide for Differential and Polarizing Relay Circuit Testing
1990IEEE C37.103-1990 Guide for Differential and Polarizing Relay Circuit Testing