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AS 2374.8-2000

Current
Current

The latest, up-to-date edition.

Power transformers Application guide
Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

06-05-2000

Preview

Provides a guide for the application, calculations and measurements of conventional design and loaded three-phase and single-phase power transformers (including auto-transformers). Certain categories of small and special transformers are not covered. Recommendations are not mandatory and do not in themselves constitute specification requirements.

This Standard applies to power transformers complying with the series of publications IEC 60076.It is intended to provide information to users about:– certain fundamental service characteristics of different transformer connections and magnetic circuit designs, with particular reference to zero-sequence phenomena;– system fault currents in transformers with YNynd and similar connections;– parallel operation of transformers, calculation of voltage drop or rise under load, and calculation of load loss for three-winding load combinations;– selection of rated quantities and tapping quantities at the time of purchase, based on prospective loading cases;– application of transformers of conventional design to convertor loading;– measuring technique and accuracy in loss measurement.Part of the information is of a general nature and applicable to all sizes of power transformers. Several chapters, however, deal with aspects and problems which are of the interest only for the specification and utilization of large high-voltage units.The recommendations are not mandatory and do not in themselves constitute specification requirements.Information concerning loadability of power transformers is given in IEC 60354, for oil-immersed transformers, and IEC 60905, for dry-type transformers.Guidance for impulse testing of power transformers is given in IEC 60722.

Committee
EL-008
DocumentType
Standard
ISBN
0 7337 3383 2
Pages
77
ProductNote
Reconfirmed 27/05/2016.This standard has been reconfirmed in Australia in 2016 and remains current in New Zealand. Reconfirmation Notice 27/05/2016
PublisherName
Standards Australia
Status
Current
Supersedes

First published as AS 2421-1981.Revised and redesignated as AS 2374.8-2000.Reconfirmed 2016. First published as AS 2421-1981. Revised and redesignated as AS 2374.8-2000.

AS 2374.3.0-1982 Power transformers Insulation levels and dielectric tests - General requirements
AS 3851-1991 The calculation of short-circuit currents in three-phase a.c. systems (Reconfirmed 2015)
AS 2374.1-1997 Power transformers General
AS 3953-1996 Loading guide for dry-type power transformers
AS 2732-1984 Guide to the lightning impulse and switching impulse testing of power transformers and reactors
AS 2374.7-1997 Power transformers - Loading guide for oil-immersed power transformers
AS 1028-1992 Power reactors and earthing transformers

AS 60146.1.1-2002 Semiconductor converters General requirements and line commutated converters - Specifications of basic requirements
AS/NZS 2081.5:2002 Electrical equipment for coal and shale mines - Electrical protection devices - Earth-fault current limiters
AS 60076.1-2005 Power transformers General (IEC 60076-1, Ed. 2.1 (2000) MOD)
AS 2832.1-2004 Cathodic protection of metals Pipes and cables
AS/NZS 2081:2011 Electrical protection devices for mines and quarries (Reconfirmed 2022)
AS/NZS 60076.1:2014 Power transformers General (IEC 60076-1, Ed. 3.0 (2011) MOD)
AS/NZS 60076.6:2013 Power transformers Reactors
AS 61800.2-2004 Adjustable speed electrical power drive systems General requirements - Rating specifications for low voltage adjustable frequency a.c. power drive systems
AS 2832.2-2003 Cathodic protection of metals Compact buried structures
AS/NZS 60076.2:2013 Power transformers Temperature rise for liquid-immersed transformers (IEC 60076-2, Ed. 3.0 (2011) MOD)

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