IEEE PC57.12.34/D9, Mar 2015
Mounted, Compartmental Type, Self Cooled, Three Phase Distribution Transformers, 10 MVA and Smaller; High Voltage, 34.5kV Nominal System Voltage and Below; Low Voltage, 15kV Nominal System Voltage and Below
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Language: English
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About This Item
PC57.12.34/D9, Mar 2015 is a technical standard for mounted, compartmental type, self cooled, three phase distribution transformers rated 10 MVA and smaller. It addresses high voltage systems at 34.5 kV nominal system voltage and below, with low voltage at 15 kV nominal system voltage and below. This specification matters because it helps define design and performance expectations for power, energy, and industrial applications where transformer consistency, safety, and interchangeability are important.
What is PC57.12.34/D9, Mar 2015?
PC57.12.34/D9, Mar 2015 is a product-oriented transformer standard that sets out requirements for a specific class of distribution equipment. Its focus is on mounted, compartmental type, self cooled, three phase units used within defined voltage and power limits. In practice, the standard helps frame engineering, rating, construction, and testing expectations for equipment intended to operate in distribution networks. PC57.12.34/D9, Mar 2015 is therefore relevant wherever technical alignment is needed for these transformer types.
Where is PC57.12.34/D9, Mar 2015 used?
This standard is commonly used in utility distribution systems, substation installations, and industrial power networks that rely on three phase transformers for voltage transformation and local power delivery. Because it covers mounted, compartmental type, self cooled equipment, it is relevant to installations where enclosed transformer arrangements are preferred for controlled access and straightforward operation. PC57.12.34/D9, Mar 2015 also fits procurement and engineering work for medium voltage distribution equipment with defined high voltage and low voltage boundaries.
Why is PC57.12.34/D9, Mar 2015 important?
PC57.12.34/D9, Mar 2015 helps create a common technical basis for design review, purchasing, and acceptance of distribution transformers. By defining the applicable scope for voltage levels, power rating, and construction style, it supports more consistent compliance checks and reduces ambiguity during specification and testing. That can improve safety, reliability, and compatibility across projects. For buyers and engineers, the standard also helps compare products on a like-for-like basis and manage risk in energy infrastructure applications.
- Mounted, compartmental type transformer scope
- Self cooled three phase distribution equipment
- 10 MVA and smaller rating range
- 34.5 kV nominal system voltage and below
- 15 kV nominal low voltage limit
- Publication Date: 2015
- Standard Status: Inactive
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications; Components, Circuits, Devices and Systems
- Official IEEE: Doi link
- New Version Available: PC57.12.34 (2022)
- Previous Version: PC57.12.34 (2022)
- Previous Version: PC57.12.34 (2022)
- Previous Version: PC57.12.34 (2015)
- This Version: PC57.12.34 (2015)
- Previous Version: PC57.12.34 (2009)
- Previous Version: PC57.12.34 (2009)
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