EVS-EN 61558-2-17:2001

Safety of power transformers, power supply units and similar - Part 2-17: Particular requirements for transformers for switch mode power supplies

General information
Withdrawn from 04.03.2010
Base Documents
IEC 61558-2-17:1997; EN 61558-2-17:1997
Directives or regulations

Standard history

This part 2 of IEC 61558 applies to associated power transformers for switch mode power supplies, single-pahse or polyphase, air-cooled: - separating transformers;- isolating transformers; - safety isolating transformers, having a rated supply voltage not exceeding 1000 V a.c. and a rated frequency of 500 Hz to 1 MHz, the rated output not exceeding: - 10 kVA for single-phase transformers and 16 kVA for polyphase transformers. The no-load output voltage or the rated output voltage do not exceed 1000 V a.c. or 1415 V ripple-free d.c. for separating transformers; 500 V a.c. for 708 V ripple-free d.c. for isolating transformers and 50 V a.c. r.m.s. and/or 120 V ripple-free d.c. for safety isolating transformers. This standard is applicable to dry type transformers. The windings may be encapsulated or non-encapsulated.
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