| 摘要 |
<p>The present invention is concerned with simplified engineering of protection lockout functionality in a Substation Automation (SA) system. Wiring complexity as well as supervision related engineering is replaced by including some protection-zone related intelligence into a lockout function block at a breaker IED. The main configuration effort then consists in assigning lockout function instances to respective protection zones, and in specifying for each protection function which protection-zone(s) it shall trip and reset after lockout. Hence for switch yard configurations and power networks where a protection function trips multiple breakers by using several bay control or protection devices a more efficient implementation of lockout functionality is possible.</p> |
