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GB 24790-2009
GB 24790-2009 Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers
Abstract
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.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Replaced |
| Standard Code | GB 24790-2009 |
| CCS | Technical management |
| ICS | Integrated Energy and Heat Transfer Engineering |
| Implement Date | 2010-07-01 |
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