{"id":81213,"date":"2024-10-17T18:52:27","date_gmt":"2024-10-17T18:52:27","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c57-127-2007\/"},"modified":"2024-10-24T19:46:01","modified_gmt":"2024-10-24T19:46:01","slug":"ieee-c57-127-2007","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c57-127-2007\/","title":{"rendered":"IEEE C57.127 2007"},"content":{"rendered":"

Revision Standard – Active. This guide is applicable to the detection and location of acoustic emissions from partial discharges and other sources in oil immersed power transformers and reactors. It is intended to provide a means of associating the relative magnitude and position of partial discharges and other sources with the acoustic signals obtained by strategically located transducers.<\/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 Std C57.127-2007 Front Cover <\/td>\n<\/tr>\n
3<\/td>\nTitle page <\/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>\nIEEE Guide for the Detection and Location of Acoustic Emissions from Partial Discharges in Oil-Immersed Power Transformers and Reactors
1. Overview
1.1 Scope
1.2 Purpose
1.3 Safety warnings <\/td>\n<\/tr>\n
12<\/td>\n2. Definitions <\/td>\n<\/tr>\n
13<\/td>\n3. Detection and measurement of PD\u2014Background information <\/td>\n<\/tr>\n
14<\/td>\n4. Introduction to acoustic PD systems <\/td>\n<\/tr>\n
15<\/td>\n4.1 All-acoustic system
4.2 Acoustic system with an electrical PD trigger <\/td>\n<\/tr>\n
16<\/td>\n4.3 On-line (continuous) acoustic monitoring system
5. Acoustic signal and transmission characteristics
5.1 Acoustic signal <\/td>\n<\/tr>\n
18<\/td>\n5.2 Acoustic signal propagation from source to tank wall
5.3 Acoustic signal propagation within the tank wall <\/td>\n<\/tr>\n
19<\/td>\n5.4 Velocity of sound in oil
6. AE systems\u2014Equipment specifications
6.1 Introduction <\/td>\n<\/tr>\n
20<\/td>\n6.2 Acoustic systems that record single events <\/td>\n<\/tr>\n
21<\/td>\n6.3 Digital signal processing (DSP) workstations that record acoustic data over
\nextended periods
6.4 On-line (continuous) acoustic PD monitoring systems <\/td>\n<\/tr>\n
22<\/td>\n6.5 External sensor
6.6 Internal sensor
6.7 Three-sensor system <\/td>\n<\/tr>\n
23<\/td>\n6.8 Band-pass filter
7. AE testing
7.1 Personnel qualification and certification
7.2 Field versus factory test differences
7.3 General considerations on the application of sensors <\/td>\n<\/tr>\n
25<\/td>\n8. AE field test procedure
8.1 Introduction
8.2 Test setup
8.3 Sensor placement and initial scan <\/td>\n<\/tr>\n
26<\/td>\n8.4 Monitoring techniques <\/td>\n<\/tr>\n
27<\/td>\n8.5 Locating the source of the signal
8.6 Reporting and followup
9. Factory test procedure using an electrical trigger
9.1 Introduction <\/td>\n<\/tr>\n
28<\/td>\n9.2 Initial sensor placement <\/td>\n<\/tr>\n
31<\/td>\n9.3 Measurements and changing of sensor placement <\/td>\n<\/tr>\n
32<\/td>\n10. Characterization of AE signals
10.1 Introduction
10.2 General\u2014AC systems <\/td>\n<\/tr>\n
33<\/td>\n10.3 Acoustic systems that record single events <\/td>\n<\/tr>\n
36<\/td>\n10.4 DSP workstations that record acoustic data over extended periods
10.5 On-line (continuous) acoustic partial discharge monitoring systems
10.6 HVDC transformers and reactors <\/td>\n<\/tr>\n
37<\/td>\n10.7 Characteristics of PD from static electrification
10.8 Acoustic activity from thermal faults, the core, mechanical noises, and other sources <\/td>\n<\/tr>\n
38<\/td>\n10.9 Comparison between electrical and acoustic signa
11. Integrating AE results with data from oil analysis <\/td>\n<\/tr>\n
40<\/td>\n12. Acoustic activity interpretation <\/td>\n<\/tr>\n
41<\/td>\nAnnex A (informative) Bibliography <\/td>\n<\/tr>\n
46<\/td>\nAnnex B (informative) Signal processing <\/td>\n<\/tr>\n
47<\/td>\nAnnex C (informative) Wavelet signal processing theory <\/td>\n<\/tr>\n
50<\/td>\nAnnex D (informative) Tutorial and case studies for detection and location of AE from PD <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Guide for the Detection and Location of Acoustic Emissions from Partial Discharges in Oil-Immersed Power Transformers and Reactors<\/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>\n57<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":81214,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-81213","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\/81213","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\/81214"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=81213"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=81213"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=81213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}