{"id":438763,"date":"2024-10-20T08:05:15","date_gmt":"2024-10-20T08:05:15","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c57-169-2023-3\/"},"modified":"2024-10-26T15:09:35","modified_gmt":"2024-10-26T15:09:35","slug":"ieee-c57-169-2023-3","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c57-169-2023-3\/","title":{"rendered":"IEEE C57.169-2023"},"content":{"rendered":"

Revision Standard – Active. Provides guidance for determining the hottest-spot temperature in distribution and power transformers built in accordance with IEEE Std C57.12.00-2000. Describes the important criteria to be evaluated by a thermal model that can accurately predict the hottest-spot temperatures in a transformer. Provides guidance for performing temperature-rise tests with direct measurement of the hottest-spot temperatures and explains the importance of developing an accurate thermal model to properly locate the temperature sensors.<\/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\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nIEEE Std C57.169\u2122-2023 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
8<\/td>\nParticipants <\/td>\n<\/tr>\n
10<\/td>\nIntroduction <\/td>\n<\/tr>\n
11<\/td>\nAcknowledgements <\/td>\n<\/tr>\n
12<\/td>\nContents <\/td>\n<\/tr>\n
14<\/td>\n1. Overview
1.1 Scope
1.2 Purpose
1.3 Word usage <\/td>\n<\/tr>\n
15<\/td>\n2. Normative references
3. Definitions <\/td>\n<\/tr>\n
16<\/td>\n4. Test methods
4.1 Direct measurement by fiber optic detectors <\/td>\n<\/tr>\n
22<\/td>\n4.2 Direct measurement by thermocouples <\/td>\n<\/tr>\n
23<\/td>\n4.3 Prototype thermal test data
4.4 Test or model windings
5. Mathematical models to predict temperature distributions and hottest-spot rises
5.1 Fundamentals <\/td>\n<\/tr>\n
24<\/td>\n5.2 Radiator or heat exchanger heat transfer
5.3 Fluid flow within the winding
5.4 Fluid flow between heat exchangers and winding
5.5 Loss distribution
5.6 Conduction heat transfer <\/td>\n<\/tr>\n
25<\/td>\n5.7 Considerations for core-form power transformers <\/td>\n<\/tr>\n
27<\/td>\n5.8 Considerations for distribution and small power transformers <\/td>\n<\/tr>\n
28<\/td>\n6. Determination of the hottest-spot temperature rise from production temperature rise tests without direct measurement of the hottest-spot temperature <\/td>\n<\/tr>\n
30<\/td>\n7. Documentation and acceptance criteria <\/td>\n<\/tr>\n
31<\/td>\nAnnex A (informative) Bibliography on experimental testing to predict or confirm transformer thermal performance
A.1 Testing by methods other than fiber optics <\/td>\n<\/tr>\n
32<\/td>\nA.2 Thermal test method using fiber optic temperature detectors <\/td>\n<\/tr>\n
33<\/td>\nAnnex B (informative) Bibliography on modeling of transformer thermal performance
B.1 Finite difference methods
B.2 Conduction analysis <\/td>\n<\/tr>\n
34<\/td>\nB.3 Liquid-immersed transformers <\/td>\n<\/tr>\n
35<\/td>\nB.4 Ventilated dry type transformer
B.5 Cast resin transformers
B.6 Gas insulated transformers <\/td>\n<\/tr>\n
36<\/td>\nB.7 Heating of transformer cores <\/td>\n<\/tr>\n
37<\/td>\nAnnex C (informative) Determination of hottest-spot temperature rise from tests without direct measurement
C.1 Introduction
C.2 Multiflow method <\/td>\n<\/tr>\n
38<\/td>\nC.3 IEC method
C.4 Summary
C.5 Bibliography for Annex C <\/td>\n<\/tr>\n
40<\/td>\nAnnex D (informative) Typical installation examples for fiber-optic probes
D.1 Typical installation of fiber optic probes in power transformers
D.2 Probe installation <\/td>\n<\/tr>\n
41<\/td>\nD.3 Bending radius recommendations
D.4 Best practices related to probe installation <\/td>\n<\/tr>\n
42<\/td>\nD.5 Probe connector cleaning
D.6 Radial spacer preparation \u2013 with disc <\/td>\n<\/tr>\n
45<\/td>\nD.7 Winding with radial spacers \u2013 without disc <\/td>\n<\/tr>\n
46<\/td>\nD.8 Layer windings made of flat or CTC conductors <\/td>\n<\/tr>\n
48<\/td>\nD.9 Foil windings <\/td>\n<\/tr>\n
49<\/td>\nD.10 Windings without radial spacers but with axial spacers in large transformers
D.11 Shell-type windings <\/td>\n<\/tr>\n
52<\/td>\nD.12 Bibliography for Annex D <\/td>\n<\/tr>\n
53<\/td>\nBack Cover <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Guide for Determination of Maximum Winding Temperature Rise in Liquid-Immersed Transformers (Published)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n2023<\/td>\n53<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":438770,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-438763","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\/438763","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\/438770"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=438763"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=438763"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=438763"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}