Electrical faults on transmission and distribution lines are detected and isolated by system protective devices. Once the fault has been cleared, outage times can be reduced if the location of…
The application of protective relays on transmission-line series capacitor banks is covered. The purpose of this guide is to provide the reader with ample discussion of the protection and control…
Information on the application of under frequency load shedding and restoration to ac power systems is compiled in this guide. Various system conditions that may require the use of under…
Guidelines for the application of automatic reclosing facilities to circuit breakers are established. Decisions concerning the use of such facilities in specific cases are left to the user.
Supersedes C37.106-1987 (R1992). This guide has been prepared to assist the protection engineer in applying relays for the protection of generating plant equipment from damage caused by operation at abnormal…
Terms that encompass the products within the scope of the C37 project are defined. These include power switchgear for switching, interrupting, metering, protection, and regulating purposes as used primarily in…
The guide is intended to assist protection engineers in applying relays and relaying schemes for protection against stator ground faults on various generator grounding schemes. The existing guide is outdated…
Two types of design tests for relays and relay systems that relate to the immunity of this equipment to repetitive electrical transients are specified. Test generator characteristics, test wave-forms, selection…
The protection of power transformers is covered;various electrical protection schemes are explored;and guidelines are given for the application of these schemes to transformers. Alternative detection methods including mechanical,thermal,and gas analysis…
