{"id":194731,"date":"2024-10-19T12:21:23","date_gmt":"2024-10-19T12:21:23","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c57-119-2018\/"},"modified":"2024-10-25T04:52:26","modified_gmt":"2024-10-25T04:52:26","slug":"ieee-c57-119-2018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c57-119-2018\/","title":{"rendered":"IEEE C57.119 2018"},"content":{"rendered":"

Revision Standard – Active. Recommendations are made, where possible, regarding the performance and evaluation of temperature rise tests on liquid-immersed power transformers beyond nameplate ratings in this recommended practice. The intent is to assist power transformer manufacturers, and the ultimate users, in evaluating theremal performance of the transformers under varying loads.<\/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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nIEEE Std C57.119\u2122-2018 Front cover <\/td>\n<\/tr>\n
2<\/td>\nTitle page <\/td>\n<\/tr>\n
4<\/td>\nImportant Notices and Disclaimers Concerning IEEE Standards Documents <\/td>\n<\/tr>\n
7<\/td>\nParticipants <\/td>\n<\/tr>\n
9<\/td>\nIntroduction <\/td>\n<\/tr>\n
11<\/td>\nContents <\/td>\n<\/tr>\n
13<\/td>\n1.\u2002Overview
1.1\u2002Scope
1.2\u2002Purpose <\/td>\n<\/tr>\n
14<\/td>\n2.\u2002Normative references <\/td>\n<\/tr>\n
15<\/td>\n3.\u2002Definitions, symbols, and subscripts
3.1\u2002Definitions <\/td>\n<\/tr>\n
16<\/td>\n3.2\u2002Symbols <\/td>\n<\/tr>\n
18<\/td>\n3.3\u2002Subscripts
4.\u2002General
4.1\u2002Preliminary evaluation <\/td>\n<\/tr>\n
19<\/td>\n4.2\u2002Cooling equipment operation
5.\u2002Precautions
5.1\u2002Thermal degradation
5.2\u2002Other factors limiting loading
5.3\u2002Monitoring of test results <\/td>\n<\/tr>\n
20<\/td>\n5.4\u2002Maximum temperatures
6.\u2002Monitored data
6.1\u2002Ambient air temperature
6.2\u2002Insulating liquid temperatures
6.3\u2002Other temperatures <\/td>\n<\/tr>\n
21<\/td>\n6.4\u2002Currents
7.\u2002Recorded data
7.1\u2002Losses
7.2\u2002Temperature indicator readings
7.3\u2002Tank surface and other temperatures
7.4\u2002Insulating liquid levels
8.\u2002Insulating liquid samples <\/td>\n<\/tr>\n
22<\/td>\n9.\u2002Test procedure for determining the thermal characteristics of liquid-immersed power transformers
9.1\u2002Tap position and connection
9.2\u2002Number of tests
9.3\u2002Applied test currents
9.4\u2002Discontinued tests <\/td>\n<\/tr>\n
23<\/td>\n9.5\u2002Temperature rise test at rated load
9.6\u2002Temperature rise test at reduced load <\/td>\n<\/tr>\n
24<\/td>\n9.7\u2002Temperature rise test at load beyond nameplate rating
9.8\u2002Evaluation of thermal data <\/td>\n<\/tr>\n
27<\/td>\n9.9\u2002Evaluation of other data
10.\u2002Test procedure for performing load cycle temperature rise tests
10.1\u2002Recommended prior tests
10.2\u2002Information specified by user <\/td>\n<\/tr>\n
28<\/td>\n10.3\u2002Determination of load cycle
10.4\u2002Preparatory calculations <\/td>\n<\/tr>\n
29<\/td>\n10.5\u2002Data recorded
10.6\u2002Test procedure <\/td>\n<\/tr>\n
31<\/td>\n10.7\u2002Interrupted test
10.8\u2002Assessment of transformer performance
11.\u2002Integrated test procedures for determining thermal characteristics and for performing load cycle temperature rise tests
11.1\u2002Load cycle simulation <\/td>\n<\/tr>\n
32<\/td>\n11.2\u2002Preliminary evaluation
11.3\u2002Test procedure
11.4\u2002Initial test
11.5\u2002Conditioning load
11.6\u2002Beyond maximum nameplate test <\/td>\n<\/tr>\n
33<\/td>\nAnnex\u00a0A (normative) Loading guide equations
A.1\u2002Explanation of equations
A.2\u2002Ultimate top insulating liquid rise for load L
A.3\u2002Ultimate winding hottest spot temperature rise over top insulating liquid for load L
A.4\u2002Transient heating equation for top insulating liquid rise over ambient temperature
A.5\u2002Hottest spot temperature <\/td>\n<\/tr>\n
34<\/td>\nA.6\u2002Thermal capacity
A.7\u2002Time constants <\/td>\n<\/tr>\n
35<\/td>\nAnnex\u00a0B (informative) Tutorial
B.1\u2002Transformer temperature considerations
B.2\u2002History <\/td>\n<\/tr>\n
36<\/td>\nB.3\u2002Problems determining thermal characteristics <\/td>\n<\/tr>\n
44<\/td>\nB.4\u2002Temperature rise testing to verify loading to a load cycle <\/td>\n<\/tr>\n
45<\/td>\nB.5\u2002Simplified test procedure to simulate a load cycle <\/td>\n<\/tr>\n
46<\/td>\nAnnex\u00a0C (informative) Hottest spot measurements using direct reading fiber optics temperature measurements <\/td>\n<\/tr>\n
47<\/td>\nAnnex\u00a0D (informative) Bibliography <\/td>\n<\/tr>\n
49<\/td>\nBack cover <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Recommended Practice for Performing Temperature Rise Tests on Liquid-Immersed Power Transformers at Loads Beyond Nameplate Ratings<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n2018<\/td>\n49<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":194735,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-194731","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\/194731","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\/194735"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=194731"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=194731"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=194731"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}