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  • BSI
    BS 3938:1973 Specification for current transformers
    Edition: 1973
    $442.60
    / user per year

Description of BS 3938:1973 1973



Current transformers for frequencies 14 Hz to 100 Hz for use with electrical measuring instruments and electrical protective devices. Ratings; accuracy; tests; rating-plate and terminal markings. Appendices on guidance in application of current transformers: short-time rating; maximum V A output of bar-primary and bushing current transformers; use of current transformers for dual purpose of measurement and protection, composite error, high and low reactance current transformers.

Standard NumberBS 3938:1973
TitleSpecification for current transformers
StatusWithdrawn
Publication Date1973-02-02
Withdrawn Date2003-11-01
Replaced ByBS 7626:1993
Related National Standard OfIEC 60185
DescriptorsName plates, Current transformers, Overvoltage tests, Temperature measurement, Electrical measuring instruments, Type testing, Alternating-current transformers, Protective relays, Windings, Ratings, Leakage paths, Rated current, High-voltage tests, Instrument transformers, Environment (working), Electrical insulation, Commissioning, Transformers, Electric terminals, Rated power, Accuracy, Temperature-rise limit, Impulse voltages, Performance, Marking, Withstand voltage, Power output, Rated voltage
ICS29.180 Transformers. Reactors
CommitteePEL/38
ISBN0 580 07309 2
PublisherBSI
Pages42

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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