GB 24790-2009 Replaced National standards force_standard

GB 24790-2009 Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers

GB 24790-2009 Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers

Publish Date: 2009-12-15 Implement Date: 2010-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB 24790-2009

Standard Type: National standards

Standard Status: Replaced

is_force_gb: yes

CCS Name: Technical management

ICS Name: Integrated Energy and Heat Transfer Engineering

Publish Date: 2009-12-15

Implement Date: 2010-07-01

Pages: 10 pages

Scope

This standard specifies the energy efficiency limits, target energy efficiency limits, energy-saving evaluation values, energy efficiency grades, and test methods for power transformers.
This standard applies to three-phase oil-immersed power transformers with a rated frequency of 50 Hz, a voltage rating of 35 kV to 220 kV, and a rated capacity of 3,150 kVA or more.
This standard does not apply to dry-type transformers, high-impedance transformers, and gas-insulated transformers.

Development Information

Word Count: 16 Thousand words Pages: 10 pages

Superseded by the following standards

GB 20052-2020 Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers

Referenced Standards

GB 1094.1-1996 Power transformers—Part 1:General GB/T 1094.1-2013 Power transformers—Part 1:General GB/T 2900.15-1997 Electrotechnical terminology Transformer, instrument transformer, voltage regulator and reactor GB/T 6451-1999 Specification and technical requirements for three-phase oil-immersed power transformers GB/T 6451-2008 Specification and technical requirements for oil-immersed power transformers GB/T 6451-2015 Specification and technical requirements for oil-immersd power transformers GB/T 6451-2023 Technical parameters and requirements for oil-immersed power transformers

Related Standards

GB/T 3794-1983 Abolished

GB/T 3794-1983 Standard for assesment of technical proficiency and acceptahce for energy balance of industrial enterprise

Publish Date: 1983-07-06

GB/T 5623-1985 Replaced

GB/T 5623-1985 Guides for the stipulation and administration of electricity consumption norm of product

Publish Date: 1985-11-25

GB/T 6421-1986 Abolished

GB/T 6421-1986 Methods for drawing energy flow diagram of industrial enterprise

Publish Date: 1986-05-27

GB/T 6422-1986 Replaced

GB/T 6422-1986 Directives for measuring and testing energy consumption in industrial enterprises

Publish Date: 1986-05-27

GB/T 6425-1986 Replaced

GB/T 6425-1986 Nomenclature for thermal analysis

Publish Date: 1986-05-27

GB/T 8174-1987 Replaced

GB/T 8174-1987 Methods of measuring and evaluating thermal insulation effects for equipments and pipes

Publish Date: 1987-08-28