GB/T 1094.11-2022
Power transformers—Part 11: Dry-type transformers (English Version)

Standard No.

GB/T 1094.11-2022

Language

Chinese, Available in English version

Release Date

2022

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 1094.11-2022

Replace

GB/T 1094.11-2007

Scope

This document specifies the terms and definitions, operating conditions, ratings and general requirements of dry-type transformers, taps, connection groups, ability to withstand short-circuits, nameplates, temperature rise limits, insulation levels, climate, environment and combustion performance levels, Seismic properties, tests, deviations, protection against direct contact, enclosure rating, earth terminal, information required for inquiries and orders, installation and safety aspects, etc. This document applies to dry-type power transformers (including autotransformers, hereinafter referred to as transformers) with a maximum voltage of 72.5kV and below, and at least one winding voltage higher than 1.1kV. This document does not apply to: --- gas-filled dry-type transformers (when the gas filled is not air); --- single-phase transformers with rated capacity less than 5kVA; --- multi-phase transformers with rated capacity less than 15kVA; --- mutual inductance ---starting transformer; ---test transformer; ---electric locomotive traction transformer; ---explosion-proof mine transformer; ---welding transformer; ---voltage regulating transformer; Small power transformers. When there is no corresponding standard for the above-mentioned transformers or other special transformers, this document may apply in whole or in part.

GB/T 1094.11-2022 Referenced Document

• GB/T 1094.1-2013 Power transformers―Part 1: General
• GB/T 1094.10 Power transformers— Part 10：Determination of sound levels*， 2022-10-14 Update
• GB/T 1094.2 Power transformers―Part 2: Temperature rise for liquid-immersed transformers
• GB/T 1094.3-2017 Power transformers - Part 3: Insulation levels, insulation tests and outer insulation air gaps
• GB/T 1094.5 Power transformers - Part 5: Ability to withstand short circuit
• GB/T 11021 Electrical insulation.Thermal evaluation and designation
• GB/T 17467 High-voltage/low-voltage prefabricated substation
• GB/T 18380.31 Tests on electric and optical fibre cables under fire conditions—Part 31: Test for vertical flame spread of vertically-mounted bunched wires or cables—Apparatus
• GB/T 18494.1 Converter transformers.Part 1:Transformers for industrial applications
• GB/T 2424.25 Environmental testing for electric and electronic products-Part 3:Test guidance Seismic test methods
• GB/T 26218.1 Selection and dimensioning of high-voltage insulators intended for use in polluted conditions.Part 1:Definitions,information and general principles
• GB/T 2900.95 Electrotechnical Terms Transformer, Voltage Regulator and Reactor
• GB/T 30790.6 Paints and varnishes.Corrosion protection of steel structures by protective paint systems.Part 6: Laboratory performance test methods
• GB/T 311.1 Insulation co-ordination.Part 1:Definitions,principles and rules
• GB/T 311.2 Insulation co-ordination.Part 2:Application guide
• GB/T 4208 Degrees of protection provide by enclosure (IP code)
• GB/T 4797.7-2008 Classification of environmental conditions of electric and electronic products.Environmental conditions appearing in nature.Earthquake vibration and shock
• GB/T 4798.4 Classification of environmental conditions—Classification of groups of environmental parameters and their severities—Part 4: Stationary use at non-weatherprotected locations*， 2023-05-23 Update

GB/T 1094.11-2022 history

• 2022 GB/T 1094.11-2022 Power transformers—Part 11: Dry-type transformers
• 2007 GB/T 1094.11-2007 Power transforments - Part 11: Dry-type transformers

GB/T 1094.11-2022 -All Parts