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BS 7821-1:1995

BS 7821-1:1995

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Three phase oil-immersed distribution transformers, 50 Hz, from 50 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

Available format(s)

Hardcopy , PDF

Superseded date

31-07-2007

Language(s)

English

Published date

15-09-1995

Publisher

British Standards Institution

Committees responsible
National foreword
Specification
Foreword
1 General
2 Electrical characteristics
3 Design requirements
4 Dimensional characteristics
5 Accessories
Annexes
A (informative) A-deviations
B (normative) Normative references

Covers transformers from 50 to 2500 kVA intended for operation in three-phase distribution networks, for indoor or outdoor continuous service, 50 Hz, immersed in mineral-oil, natural cooling, with two windings.

Committee
PEL/14
DevelopmentNote
Supersedes 92/29073 DC (01/2004)
DocumentType
Standard
Pages
14
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
HD 428.1 S1:1992/AC:2011 Identical

BS 7877:1999 Busbar bushings up to 1 kV and from 1,25 kA to 5 kA, for liquid filled transformers
BS 7821-3:1995 Three phase oil-immersed distribution transformers, 50 Hz, from 50 to 2500 kVA with highest voltage for equipment not exceeding 36 kV Supplementary requirements for transformers with highest voltage for equipment equal to 36 kV
BS 7821-2.1:1995 Three phase oil-immersed distribution transformers, 50 Hz, from 50 to 2500 kVA with highest voltage for equipment not exceeding 36 kV. Distribution transformers with cable boxes on the high voltage and/or low voltage side General requirements

BS 171-1:1978 Power transformers General
IEC TR 60616:1978 Terminal and tapping markings for power transformers
HD 428.2.3 : 200S1 THREE-PHASE OIL-IMMERSED DISTRIBUTION TRANSFORMERS 50 HZ, FROM 50 TO 2500 KVA WITH HIGHEST VOLTAGE FOR EQUIPMENT NOT EXCEEDING 36 KV PART 2: DISTRIBUTION TRANSFORMERS WITH CABLE BOXES ON THE HIGH-VOLTAGE AND/OR LOW VOLTAGE SIDE SECTION 3: CABLE BOXES TYPE 2 FOR USE ON DISTRIBUTION TRANSFORMERS MEETING THE REQUIREMENTS OF HD 428.2.1
HD 428.2.2 : 200S1 THREE-PHASE OIL-IMMERSED DISTRIBUTION TRANSFORMERS 50 HZ, FROM 50 TO 2500 KVA WITH HIGHEST VOLTAGE FOR EQUIPMENT NOT EXCEEDING 36 KV - PART 2: DISTRIBUTION TRANSFORMERS WITH CABLE BOXES ON THE HIGH-VOLTAGE AND/OR LOW VOLTAGE SIDE - SECTION 2: CABLE BOXES TYPE 1 FOR USE ON DISTRIBUTION TRANSFORMERS MEETING THE REQUIREMENTS OF HD 428.2.1 S1
HD 428.2.1 : 200S1 THREE PHASE OIL IMMERSED DISTRIBUTION TRANSFORMERS 50 HZ, FROM 50 TO 2500 KVA WITH HIGHEST VOLTAGE FOR EQUIPMENT NOT EXCEEDING 36 KV - DISTRIBUTION TRANSFORMERS WITH CABLE BOXES ON THE HIGH VOLTAGE AND/OR LOW VOLTAGE SIDE - GENERAL REQUIREMENTS
BS 7697:1993 Nominal voltages for low voltage public electricity supply systems
BS 171-3:1987 Power transformers Specification for insulation levels and dielectric tests

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PDF - English
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