Add contingency by ISO-NE

Author: jinningwang

_pages/changelog.md

@@ -18,6 +18,7 @@ toc:
 - Remove item of <u>Transfer Limits</u> as overlapping with <u>Stability Limits</u>
 - Update acronyms table
 - Add some quick links in references page
+- Add <u>Contingency</u> by ISO-NE in [<u>Contingency</u>](/wiki/contingency)
 
 ### 03-18
 

_wiki/contingency.md

@@ -9,6 +9,10 @@ bibliography: papers.bib
 
 Relevant items: [Emergency](/wiki/emergency)
 
+**Contingency** by ISO-NE <d-cite key="isone2024op19"></d-cite> (p6, Revision 13.3)
+
+A contingency is the unexpected failure or outage of a system component such as a generator, transmission line, circuit breaker, switch or other electrical element.
+
 **Contingency** <d-cite key="nerc2024glossary"></d-cite>
 
 The unexpected **failure** or **outage** of a system component, such as a generator, transmission line, circuit breaker, switch or other electrical element.

assets/bibliography/papers.bib

@@ -1140,3 +1140,15 @@ @article{ieee2024std1547
   applications. Its ultimate goal is to raise awareness within the power systems community and related disciplines about the
   growing field of synchro-waveforms and the diverse range of emerging topics in this domain.},
 }
+
+@online{isone2024op19,
+  abbr = {Industry},
+  author={ISO-NE},
+  title        = {OP-19 Transmission Operations},
+  year         = {2024},
+  month        = {June},
+  day          = {12},
+  url = {https://www.iso-ne.com/static-assets/documents/rules_proceds/operating/isone/op19/op19_rto_final.pdf},
+  pdf = {https://www.iso-ne.com/static-assets/documents/rules_proceds/operating/isone/op19/op19_rto_final.pdf},
+  bibtex_show = {true},
+}