{"id":80565,"date":"2024-10-17T18:45:35","date_gmt":"2024-10-17T18:45:35","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c37-117-2007\/"},"modified":"2024-10-24T19:43:57","modified_gmt":"2024-10-24T19:43:57","slug":"ieee-c37-117-2007","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c37-117-2007\/","title":{"rendered":"IEEE C37.117 2007"},"content":{"rendered":"

New IEEE Standard – Active. Information on the application of underfrequency load shedding and restoration to ac power systems is compiled in this guide. Various system conditions that may require the use of underfrequency load shedding, and the application of protective relays to various methods of performing underfrequency load shedding are described in this guide. Some practical examples of underfrequency load shedding applications are also provided<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nIEEE Guide for the Application of Protective Relays Used for Abnormal Frequency Load Shedding and Restoration <\/td>\n<\/tr>\n
6<\/td>\nIntroduction
Notice to users
Errata
Interpretations
Patents <\/td>\n<\/tr>\n
7<\/td>\nParticipants <\/td>\n<\/tr>\n
9<\/td>\nCONTENTS <\/td>\n<\/tr>\n
11<\/td>\n1. Overview
1.1 Scope
1.2 Purpose
2. Normative references <\/td>\n<\/tr>\n
12<\/td>\n3. Description of system conditions addressed in this guide <\/td>\n<\/tr>\n
13<\/td>\n4. Normal and abnormal frequency operation of electrical power systems and its effect on equipment in the system
4.1 Power system dynamic <\/td>\n<\/tr>\n
14<\/td>\n4.2 Abnormal frequency operation of power systems <\/td>\n<\/tr>\n
16<\/td>\n5. Underfrequency load shedding and restoration philosophy
\n <\/td>\n<\/tr>\n
18<\/td>\n6. Underfrequency load shedding methods
6.1 Manual\/SCADA load shedding
6.2 Automatic load shedding <\/td>\n<\/tr>\n
19<\/td>\n6.3 Local <\/td>\n<\/tr>\n
21<\/td>\n6.4 Wide area underfrequency load shedding <\/td>\n<\/tr>\n
22<\/td>\n7. Load restoration methods <\/td>\n<\/tr>\n
23<\/td>\n8. Frequency relays, measuring principles, and characteristics
8.1 Electromechanical relays
8.2 Solid-state (static) relays <\/td>\n<\/tr>\n
24<\/td>\n8.3 Microprocessor (digital) relays
9. Operating principles
9.1 Fixed frequency <\/td>\n<\/tr>\n
25<\/td>\n9.2 Rate of change of frequency df\/dt <\/td>\n<\/tr>\n
28<\/td>\n9.3 Average rate of change \u0394f\/\u0394t <\/td>\n<\/tr>\n
29<\/td>\n10. Scheme design
10.1 Dependability and security
10.2 Redundant frequency relays sensing multiple voltage sources
10.3 Current and voltage supervision <\/td>\n<\/tr>\n
32<\/td>\n10.4 Directional power supervision
10.5 Rate-of-frequency-change supervision <\/td>\n<\/tr>\n
33<\/td>\n11. Effects of voltage change on frequency load shedding <\/td>\n<\/tr>\n
34<\/td>\n12. Existing frequency load shedding and restoration practices
12.1 NERC: 2003 underfrequency load shed criteria <\/td>\n<\/tr>\n
36<\/td>\n12.2 Nordel underfrequency load shed criteria
12.3 France, Electricite de France underfrequency load shedding <\/td>\n<\/tr>\n
37<\/td>\n12.4 Ireland, Electricity Supply Board underfrequency load shedding and automatic frequency restoration <\/td>\n<\/tr>\n
38<\/td>\n12.5 Industrial applications <\/td>\n<\/tr>\n
39<\/td>\n13. Setting and performance criteria
13.1 Performance criteria <\/td>\n<\/tr>\n
40<\/td>\n13.2 Setting guidelines for abnormal frequency load shedding <\/td>\n<\/tr>\n
41<\/td>\n14. Maintenance, testing, and reliability <\/td>\n<\/tr>\n
42<\/td>\n14.1 Frequency protection elements
14.2 Rate-of-change elements <\/td>\n<\/tr>\n
43<\/td>\n14.3 Average rate-of-change elements <\/td>\n<\/tr>\n
44<\/td>\n14.4 Testing of load shedding schemes
14.5 Testing of load restoration schemes
15. Examples
15.1 Practical application of load shedding <\/td>\n<\/tr>\n
46<\/td>\n15.2 Historical examples of underfrequency load shedding during system disturbances <\/td>\n<\/tr>\n
50<\/td>\nAnnex A (informative) Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Guide for the Application of Protective Relays Used for Abnormal Frequency Load Shedding and Restoration<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n2007<\/td>\n53<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":80566,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-80565","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ieee","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/80565","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/80566"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=80565"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=80565"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=80565"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}