{"id":400760,"date":"2024-10-20T04:52:17","date_gmt":"2024-10-20T04:52:17","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c57-12-90-2015-2\/"},"modified":"2024-10-26T08:39:52","modified_gmt":"2024-10-26T08:39:52","slug":"ieee-c57-12-90-2015-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c57-12-90-2015-2\/","title":{"rendered":"IEEE C57.12.90-2015"},"content":{"rendered":"

Revision Standard – Superseded. Methods for performing tests specified in IEEE Std C57.12.00(TM) and other standards applicable to liquid-immersed distribution, power, and regulating transformers are described. Instrument transformers, step-voltage and induction voltage regulators, arc furnace transformers, rectifier transformers, specialty transformers, grounding transformers, and mine transformers are excluded. Resistance measurements, polarity and phase-relation tests, ratio tests, no-load loss and excitation current measurements, impedance and load loss measurements, dielectric tests, temperature tests, short-circuit tests, audible sound level measurements, and calculated data are covered in this standard.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nIEEE Std C57.12.90\u2122-2015 Front Cover <\/td>\n<\/tr>\n
3<\/td>\nTitle page <\/td>\n<\/tr>\n
5<\/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>\nContents <\/td>\n<\/tr>\n
13<\/td>\nImportant Notice
1. Overview
1.1 Scope <\/td>\n<\/tr>\n
14<\/td>\n1.2 Purpose
1.3 Word usage
2. Normative references <\/td>\n<\/tr>\n
15<\/td>\n3. Definitions <\/td>\n<\/tr>\n
16<\/td>\n4. General
4.1 Types of tests
4.2 Test requirements
4.3 Test sequence <\/td>\n<\/tr>\n
17<\/td>\n4.4 Instrumentation
5. Resistance measurements
5.1 Determination of cold temperature <\/td>\n<\/tr>\n
18<\/td>\n5.2 Conversion of resistance measurements
5.3 Resistance measurement methods <\/td>\n<\/tr>\n
19<\/td>\n5.4 Resistance measurement connections and reporting <\/td>\n<\/tr>\n
20<\/td>\n6. Polarity and phase-relation tests
6.1 Subtractive and additive polarity <\/td>\n<\/tr>\n
21<\/td>\n6.2 Polarity tests: single-phase transformers <\/td>\n<\/tr>\n
22<\/td>\n6.3 Polarity and phase-relation tests: polyphase transformers <\/td>\n<\/tr>\n
26<\/td>\n7. Ratio tests
7.1 General <\/td>\n<\/tr>\n
27<\/td>\n7.2 Tolerances for ratio
7.3 Ratio test methods <\/td>\n<\/tr>\n
29<\/td>\n8. No-load losses and excitation current
8.1 General
8.2 No-load loss test <\/td>\n<\/tr>\n
32<\/td>\n8.3 Waveform correction of no-load losses
8.4 Temperature correction of no-load losses <\/td>\n<\/tr>\n
33<\/td>\n8.5 Determination of excitation (no-load) current
8.6 Frequency conversion of no-load losses and excitation current
9. Load losses and impedance voltage
9.1 General <\/td>\n<\/tr>\n
34<\/td>\n9.2 Factors affecting the values of load losses and impedance voltage <\/td>\n<\/tr>\n
35<\/td>\n9.3 Tests for measuring load losses and impedance voltage <\/td>\n<\/tr>\n
42<\/td>\n9.4 Calculation of load losses and impedance voltage from test data <\/td>\n<\/tr>\n
45<\/td>\n9.5 Zero-phase-sequence impedance <\/td>\n<\/tr>\n
49<\/td>\n10. Dielectric tests
10.1 General <\/td>\n<\/tr>\n
52<\/td>\n10.2 Switching impulse test procedures <\/td>\n<\/tr>\n
53<\/td>\n10.3 Lightning impulse test procedures <\/td>\n<\/tr>\n
61<\/td>\n10.4 Routine impulse test for distribution transformers <\/td>\n<\/tr>\n
63<\/td>\n10.5 Low-frequency tests <\/td>\n<\/tr>\n
64<\/td>\n10.6 Applied-voltage tests
10.7 Induced-voltage tests for distribution and Class I power transformers <\/td>\n<\/tr>\n
65<\/td>\n10.8 Induced-voltage test for Class II power transformers <\/td>\n<\/tr>\n
66<\/td>\n10.9 Partial discharge measurement <\/td>\n<\/tr>\n
67<\/td>\n10.10 Insulation power-factor tests <\/td>\n<\/tr>\n
68<\/td>\n10.11 Insulation resistance tests <\/td>\n<\/tr>\n
70<\/td>\n11. Temperature-rise tests
11.1 Test methods <\/td>\n<\/tr>\n
73<\/td>\n11.2 Resistance measurements <\/td>\n<\/tr>\n
75<\/td>\n11.3 Temperature measurements <\/td>\n<\/tr>\n
77<\/td>\n11.4 Correction of temperature-rise test results <\/td>\n<\/tr>\n
79<\/td>\n12. Short-circuit tests
12.1 General <\/td>\n<\/tr>\n
80<\/td>\n12.2 Test connections <\/td>\n<\/tr>\n
83<\/td>\n12.3 Test requirements <\/td>\n<\/tr>\n
84<\/td>\n12.4 Test procedure <\/td>\n<\/tr>\n
85<\/td>\n12.5 Proof of satisfactory performance <\/td>\n<\/tr>\n
87<\/td>\n13. Audible sound emissions
13.1 General <\/td>\n<\/tr>\n
88<\/td>\n13.2 Instrumentation <\/td>\n<\/tr>\n
89<\/td>\n13.3 Test conditions <\/td>\n<\/tr>\n
91<\/td>\n13.4 Microphone positions <\/td>\n<\/tr>\n
92<\/td>\n13.5 Sound pressure level measurements <\/td>\n<\/tr>\n
96<\/td>\n13.6 Determination of audible sound level of a transformer <\/td>\n<\/tr>\n
99<\/td>\n13.7 Presentation of results <\/td>\n<\/tr>\n
102<\/td>\n14. Calculated data
14.1 Reference temperature
14.2 Losses and excitation current
14.3 Efficiency
14.4 Voltage regulation of a constant-voltage transformer <\/td>\n<\/tr>\n
105<\/td>\nAnnex A (informative) Partial discharge measurement using radio-influence voltage instrumentation and its failure detection
A.1 Partial discharge measurement <\/td>\n<\/tr>\n
106<\/td>\nA.2 Failure detection <\/td>\n<\/tr>\n
107<\/td>\nAnnex B (normative) 50\/60-Hz frequency conversion of measured performance parameters
B.1 No-load loss and excitation current <\/td>\n<\/tr>\n
108<\/td>\nB.2 Load loss <\/td>\n<\/tr>\n
109<\/td>\nB.3 Temperature-rise test <\/td>\n<\/tr>\n
111<\/td>\nB.4 Short-circuit test
B.5 Audible sound <\/td>\n<\/tr>\n
114<\/td>\nAnnex C (informative) Connections diagrams for short-circuit testing of a three-phase transformer using single-phase source as an alternative (see 12.2.1.2) <\/td>\n<\/tr>\n
117<\/td>\nAnnex D (informative) Bibliography <\/td>\n<\/tr>\n
120<\/td>\nBack Cover <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers (Redline)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n2015<\/td>\n120<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":400766,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-400760","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\/400760","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\/400766"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=400760"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=400760"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=400760"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}