šŸ”„šŸ”„ Donā€™t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

šŸ”
IEEE C57.12.90-2015

IEEE C57.12.90-2015

$115.92

IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers (Superseded Redline)

Published By Publication Date Number of Pages
IEEE 2015
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Category:

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. Weā€™re here to assist you 24/7.
Email:[email protected]

Revision Standard – Superseded.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.

PDF Catalog

PDF Pages PDF Title
1 IEEE Std C57.12.90ā„¢-2015 Front Cover
3 Title page
5 Important Notices and Disclaimers Concerning IEEE Standards Documents
8 Participants
10 Introduction
11 Contents
13 Important Notice
1. Overview
1.1 Scope
14 1.2 Purpose
1.3 Word usage
2. Normative references
15 3. Definitions
16 4. General
4.1 Types of tests
4.2 Test requirements
4.3 Test sequence
17 4.4 Instrumentation
5. Resistance measurements
5.1 Determination of cold temperature
18 5.2 Conversion of resistance measurements
5.3 Resistance measurement methods
19 5.4 Resistance measurement connections and reporting
20 6. Polarity and phase-relation tests
6.1 Subtractive and additive polarity
21 6.2 Polarity tests: single-phase transformers
22 6.3 Polarity and phase-relation tests: polyphase transformers
26 7. Ratio tests
7.1 General
27 7.2 Tolerances for ratio
7.3 Ratio test methods
29 8. No-load losses and excitation current
8.1 General
8.2 No-load loss test
32 8.3 Waveform correction of no-load losses
8.4 Temperature correction of no-load losses
33 8.5 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
34 9.2 Factors affecting the values of load losses and impedance voltage
35 9.3 Tests for measuring load losses and impedance voltage
42 9.4 Calculation of load losses and impedance voltage from test data
45 9.5 Zero-phase-sequence impedance
49 10. Dielectric tests
10.1 General
52 10.2 Switching impulse test procedures
53 10.3 Lightning impulse test procedures
61 10.4 Routine impulse test for distribution transformers
63 10.5 Low-frequency tests
64 10.6 Applied-voltage tests
10.7 Induced-voltage tests for distribution and Class I power transformers
65 10.8 Induced-voltage test for Class II power transformers
66 10.9 Partial discharge measurement
67 10.10 Insulation power-factor tests
68 10.11 Insulation resistance tests
70 11. Temperature-rise tests
11.1 Test methods
73 11.2 Resistance measurements
75 11.3 Temperature measurements
77 11.4 Correction of temperature-rise test results
79 12. Short-circuit tests
12.1 General
80 12.2 Test connections
83 12.3 Test requirements
84 12.4 Test procedure
85 12.5 Proof of satisfactory performance
87 13. Audible sound emissions
13.1 General
88 13.2 Instrumentation
89 13.3 Test conditions
91 13.4 Microphone positions
92 13.5 Sound pressure level measurements
96 13.6 Determination of audible sound level of a transformer
99 13.7 Presentation of results
102 14. Calculated data
14.1 Reference temperature
14.2 Losses and excitation current
14.3 Efficiency
14.4 Voltage regulation of a constant-voltage transformer
105 Annex A (informative) Partial discharge measurement using radio-influence voltage instrumentation and its failure detection
A.1 Partial discharge measurement
106 A.2 Failure detection
107 Annex B (normative) 50/60-Hz frequency conversion of measured performance parameters
B.1 No-load loss and excitation current
108 B.2 Load loss
109 B.3 Temperature-rise test
111 B.4 Short-circuit test
B.5 Audible sound
114 Annex 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)
117 Annex D (informative) Bibliography
120 Back Cover

Related products

IEEE C57.12.90-2015
$115.92