BS 7844-1:1996
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Three-phase dry-type distribution transformers 50 Hz, from 100 to 2500 kVA with highest voltage for equipment not exceeding 36 kV General requirements and requirements for transformers with highest voltage for equipment not exceeding 24 kV
Hardcopy , PDF
31-07-2011
English
15-08-1996
Foreword
1 General
1.1 Scope
1.2 Object
1.3 Compliance with current Harmonization Documents
2 Electrical characteristics
2.1 Rated power
2.2 Highest voltages for equipment of windings
2.3 Rated voltages of windings
2.4 Tappings
2.5 Connections
2.6 Dimensioning of neutral connection of the low-voltage
winding
2.7 Losses, sound power level and impedance voltage
2.8 Partial discharge
2.9 Insulation levels and dielectric tests
3 Design requirements
3.1 Environmental and climatic classes
3.2 Fire behaviour classes
3.3 Terminals
3.4 Enclosures
4 Dimensional characteristics
4.1 Dimensions and rollers
5 Accessories
Annexes
A (informative) National deviations
B (normative) Normative references
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