IEEE C57.15-2009 REDLINE
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
IEEE Standard Requirements, Terminology, and Test Code for Step-Voltage Regulators
05-29-2020
English
12-11-2009
1. Overview
1.1 Scope
1.2 Purpose
1.3 Word usage
2. Normative references
3. Definitions
4. Service conditions
4.1 Usual service conditions
4.2 Loading at other than rated conditions
4.3 Unusual service conditions
4.4 Frequency
5. Rating data
5.1 Cooling classes of voltage regulators
5.2 Ratings
5.3 Supplementary continuous-current ratings
5.4 Taps
5.5 Operating voltage limits
5.6 Voltage supply ratios
5.7 Insulation levels
5.8 Losses
5.9 Short-circuit requirements
5.10 Tests
6. Construction
6.1 Bushings
6.2 Terminal markings
6.3 Diagram of connections
6.4 Nameplates
6.5 Tank construction
6.6 Components and accessories
7. Other requirements
7.1 Other supplementary continuous-current ratings
7.2 Other components and accessories
8. Test code
8.1 Resistance measurements
8.2 Polarity test
8.3 Ratio tests
8.4 No-load losses and excitation current
8.5 Load losses and impedance voltage
8.6 Dielectric tests
8.7 Temperature-rise tests
8.8 Short-circuit tests
8.9 Calculated data
9. Control systems
9.1 General
9.2 Control device construction
9.3 Control system requirements
9.4 Tests
Annex A (informative) - Unusual temperature and altitude
conditions
Annex B (informative) - Field dielectric tests
Annex C (informative) - Bibliography
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