IEEE C57.12.01:2020 pdf download.IEEE Standard for General Requirements for Dry-Type Distribution and Power Transformers.
This standard describes electrical and mechanical requirements of single and polyphase ventilated, non- ventilated, and sealed dry-type distribution and power transformers or autotransformers, with a voltage of 601 V or higher in the highest voltage winding. This standard applies to all dry-type transformers, including those with solid-cast and!or resin encapsulated windings except as follows:
a) Instrument transformers
b) Step and induction-voltage regulators
c) Arc-furnace transformers
d) Rectifier transformers
e) Specialty and general-purpose transformers Mine transformers
g) Testing transformers
h) Welding transformers
NOTE—Where IEEE standards do not exist for the transformers mentioned above or for other special transfbrmers. this standard may be applicable as a whole or in parts subject to agreement between the parties responsible for the application and for the design of the transformer.
1.2 Purpose
This standard is intended to serve as a basis for the establishment of performance, interchangeability requirements of equipment described, and for assistance in the proper selection of such equipment.
1.3 Word usage
The word shall indicates mandatory requirements strictly to be followed in order to conform to the standard
and from which no deviation is permitted (shall equals is required to).
The word should indicates that among several possibilities one is recommended as particularly suitable, without mentioning or excluding others: or that a certain course of action is preferred but not necessarily required (should equals is recommended that).
The word rnai’ is used to indicate a course of action permissible within the limits of the standard (may equals is permitted to).
The word can is used for statements of possibility and capability, whether material, physical, or causal (can equals is able to).
2. Normative references
The following referenced documents are indispensable for the application of this document (i.e., they must be understood and used, so each referenced document is cited in text and its relationship to this document is explained). For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments or corrigenda) applies.
ANSI C57. 12.55, American National Standard for Dry-Type Transformers—Used in Unit Installations, Including Unit Substations—Conformance Standard.
ANSI C84.1, American National Standard for Electric Power Systems and Equipment——Voltage Ratings (60 Hz).
IEEE Std C57.1 2.52T%1, IEEE Standard for Sealed Dry-Type Power Transformers, 501 kVA and Higher, Three- Phase, with High-Voltage 601 to 34500 Volts. Low-Voltage 208Y/1 20 to 4160 Volts, General Requirements.
IEEE Std C57.12.60Ts1, IEEE Standard for Thermal Evaluation of Insulation Systems for Dry-Type Power and Distribution Transformers.
IEEE Std C57. 1 2.70, IEEE Standard for Standard Terminal Markings and Connections for Distribution and Power Transformers.
IEEE Std C57.1 2.80, IEEE Standard Terminology for Power and Distribution Transformers.
IEEE Std C57. 12.91 TM, IEEE Standard Test Code for Dry-Type Distribution and Power Transformers.
IEEE Std C57.96Th4, IEEE Guide for Loading Dry-Type Distribution and Power Transformers.
IEEE Std C57. 11 011, IEEE Recommended Practice for Establishing Liquid-Immersed and Dry-Type Power and Distribution Transformer Capability When Supplying Nonsinusoidal Load Currents.IEEE C57.12.01 pdf download.