原标准的范围是并联电抗器保护的可接受方法和配置指南。本PAR的目的是通过包括指南中未包含的反应堆配置和反应堆保护方案，使现有指南更加全面。需要审查和更新现有指南，以考虑使用辅助电源绕组保护并联电抗器、改进匝间故障保护、使用数字/微处理器继电器和其他并联电抗器保护的项目，如工作组所带来的。

The scope of the original standard was a guide for acceptable methods and configurations for the protection of shunt reactors. This PAR's intent is to make the existing guide more comprehensive by including reactor configurations and reactor protection schemes not now in the guide. Review and updating of the existing guide is needed to consider protection of shunt reactors with auxiliary power windings, improved turn-to-turn fault protection, use of digital/microprocessor relays and other items specific to shunt reactor protection as brought before the working group.