{"id":111689,"date":"2024-10-18T16:15:05","date_gmt":"2024-10-18T16:15:05","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c57-123-2010\/"},"modified":"2024-10-24T22:02:22","modified_gmt":"2024-10-24T22:02:22","slug":"ieee-c57-123-2010","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c57-123-2010\/","title":{"rendered":"IEEE C57.123 2010"},"content":{"rendered":"

Revision Standard – Active. Information and general recommendations of instrumentation, circuitry, calibration, and measurement techniques of no-load losses (excluding auxiliary losses), excitation current, and load losses of power and distribution transformers are provided. The guide is intended as a complement to the test code procedures given in Clause 8 and Clause 9 of IEEE Std C57.12.90.<\/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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nIEEE Std C57.123-2010 front cover <\/td>\n<\/tr>\n
3<\/td>\nTitle page <\/td>\n<\/tr>\n
6<\/td>\nIntroduction
Notice to users
Laws and regulations
Copyrights
Updating of IEEE documents <\/td>\n<\/tr>\n
7<\/td>\nErrata
Interpretations
Patents
Acknowledgments <\/td>\n<\/tr>\n
8<\/td>\nParticipants <\/td>\n<\/tr>\n
10<\/td>\nContents <\/td>\n<\/tr>\n
11<\/td>\nImportant Notice
1. Overview
1.1 Scope <\/td>\n<\/tr>\n
12<\/td>\n1.2 Purpose
2. Normative references
3. Transformer no-load losses
3.1 General <\/td>\n<\/tr>\n
13<\/td>\n3.2 Parameters affecting magnitude of no-load losses
3.2.1 Induction
3.2.2 Excitation voltage magnitude
3.2.3 Excitation voltage waveform <\/td>\n<\/tr>\n
15<\/td>\n3.2.4 Core configuration
3.2.5 Core material
3.2.6 Joint type <\/td>\n<\/tr>\n
16<\/td>\n3.2.7 Core size
3.2.8 Frequency
3.2.9 Workmanship
3.2.10 Core temperature
3.2.11 Impulse tests <\/td>\n<\/tr>\n
17<\/td>\n3.2.12 Core stabilization
3.2.13 Short-circuit testing
3.3 Excitation current (no-load current) <\/td>\n<\/tr>\n
18<\/td>\n3.4 Test requirements <\/td>\n<\/tr>\n
19<\/td>\n3.5 Measurement of no-load losses
3.5.1 Measuring circuit
3.5.2 Waveform correction <\/td>\n<\/tr>\n
21<\/td>\n3.5.3 Impact of a high source impedance <\/td>\n<\/tr>\n
23<\/td>\n3.6 Measurement of excitation current <\/td>\n<\/tr>\n
24<\/td>\n3.7 Measuring circuitry for three-phase transformers
3.7.1 Three-wattmeter connections <\/td>\n<\/tr>\n
25<\/td>\n3.7.2 Two-wattmeter method (not recommended)
3.7.3 Voltmeter connections <\/td>\n<\/tr>\n
28<\/td>\n4. Transformer load losses
4.1 General <\/td>\n<\/tr>\n
29<\/td>\n4.2 Measuring circuitry
4.3 Load-loss measurement uncertainties <\/td>\n<\/tr>\n
31<\/td>\n4.4 Corrections to measured load losses
4.4.1 Phase-angle correction of a conventional load-loss measuring system <\/td>\n<\/tr>\n
34<\/td>\n4.4.2 Magnitude correction
4.4.3 Correction for losses due to the shorting connection <\/td>\n<\/tr>\n
37<\/td>\n4.4.4 Special precautions <\/td>\n<\/tr>\n
39<\/td>\n4.5 Measuring circuitry for three-phase transformers
4.5.1 Three-wattmeter method <\/td>\n<\/tr>\n
40<\/td>\n4.5.2 Two-wattmeter method (not recommended)
4.5.3 Test of three-phase transformer with single-phase voltage <\/td>\n<\/tr>\n
41<\/td>\n4.5.4 Bridge method <\/td>\n<\/tr>\n
42<\/td>\n5. Advanced measuring systems
5.1 Enhanced conventional system
5.2 Advanced voltage and current transducers <\/td>\n<\/tr>\n
43<\/td>\n6. Specified tolerances on losses
6.1 Specified tolerances on no-load losses <\/td>\n<\/tr>\n
44<\/td>\n6.2 Specified tolerances on total losses <\/td>\n<\/tr>\n
45<\/td>\n7. Traceability and calibration <\/td>\n<\/tr>\n
46<\/td>\n8. Grounding, shielding, and safety
8.1 Grounding
8.2 Shielding <\/td>\n<\/tr>\n
47<\/td>\n8.3 Safety <\/td>\n<\/tr>\n
48<\/td>\nAnnex A (informative) Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Guide for Transformer Loss Measurement<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n2010<\/td>\n49<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":111690,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-111689","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\/111689","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\/111690"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=111689"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=111689"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=111689"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}