IEEE DRAFT C57.12.26 : 1992
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
PAD-MOUNTED, COMPARTMENTAL-TYPE, SELF-COOLED, THREE-PHASE DISTRIBUTION TRANSFORMERS FOR USE WITH SEPARABLE INSULATED HIGH-VOLTAGE CONNECTORS, 34 500 GRDY/19 920 V AND BELOW; 2500 KVA AND SMALLER
19-10-2023
12-01-2013
1. Purpose and Scope
1.1 Purpose
1.2 Scope
2. References
3. Ratings
3.1 Kilovolt-Ampere Ratings
3.2 Voltage Ratings
3.3 Tap Ratings
4. Basic Lightning Impulse Insulation Levels and
Dielectric Test Levels
4.1 Basic Lighting Impulse Insulation Levels
4.2 Dielectric Test Levels
5. Impedance Voltage
5.1 Percent Impedance Voltage
5.2 Tolerance
5.3 Tolerance on a Tap
6. Tests
6.1 General
6.2 Dielectric Test
7. Construction
7.1 General
7.2 Connectors and Terminals
7.3 High-Voltage and Low-Voltage Compartments
7.4 Instruction Nameplate
7.5 Oil Preservation
7.6 Tanks
7.7 Components for Loop Primary Cable Systems
8. Installation
9. Storage
Figures
1. Minimum Dimensions for Radial-Feed Transformers
2. Minimum Dimensions for Loop-Feed Transformers
3. Compartment Designations and Minimum Dimensions for
Loop-Feed or Radial-Feed Transformers
4. Low-Voltage Terminal Arrangements and Minimum
Dimensions
5. Specific Dimensions for Radial-Feed Transformers
6. Specific Dimensions for Loop-Feed Transformers
7. Compartment Designations and Specific Dimensions
for Loop-Feed and Radial-Feed Transformers
8. Low-Voltage Terminal Arrangements and Specific
Dimensions
9. Low-Voltage Terminals
10. Angular Displacement
Tables
1. Range of kVA and Voltage Ratings
2. High-Voltage Taps
3. Electrical Characteristics of Low-Voltage Terminals
and Minimum Electrical Clearances
4. Transformers and Connectors
High-Voltage Ratings and Electrical Characteristics
Covers certain electrical, dimensional and mechanical characteristics and takes into consideration certain safety features of three-phase, 60 Hz, mineral-oil-immersed, self-cooled, pad-mounted, compartmental-type distribution transformers with separable insulated high voltage connectors.
| DocumentType |
Draft
|
| PublisherName |
Institute of Electrical & Electronics Engineers
|
| Status |
Withdrawn
|
| IEEE 386-2016 | IEEE Standard for Separable Insulated Connector Systems for Power Distribution Systems Rated 2.5 kV through 35 kV |
| IEEE C57.12.00-2015 | IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers |
| IEEE C57.91-2011 REDLINE | IEEE Guide for Loading Mineral-Oil-Immersed Transformers and Step-Voltage Regulators |
| IEEE C57.12.90-2010 | IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers |
| ANSI C57.12.28 : 2014 | PAD-MOUNTED EQUIPMENT - ENCLOSURE INTEGRITY |
| IEEE C57.92-1981 | IEEE Guide for Loading Mineral-Oil-Immersed Power Transformers Up to and Including 100 MVA with 55 C or 65 C Average Winding Rise |
| IEEE C57.12.70-2011 | IEEE Standard for Standard Terminal Markings and Connections for Distribution and Power Transformers |
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